A Heat Pump for £500?!

[@brackcycle9056]

"what more could you possibly want ?" A spec sheet ! Sound levels & Cop /Scop at these high temperatures. That said it good to see , & regarding looks ... Don't mind Normal Look or this ..

[@Hdtjdjbszh]

ability to use it without their app would be nice too

[@rogerphelps9939]

@@Hdtjdjbszh Absolutely. A sceptic would say that it is a ploy by Octopus to have a captive customer base which is difficult to get out of.

[@tonystanley5337]

At the end of the day these articles are paid ads, these things need independently tested to a spec that works for resistive, heat pumps and gas.

[@robbiepmusic]

The only thing that counts is the cop eh, cop 2 when its cold wont be cheaper than other ways of heating.

[@bencampbell2041]

​@@robbiepmusicSCOP is what matters for overall cost.

[@Scott-cm8sv]

Let me start off by saying that I am industry professional (Chartered Surveyor) who deals with renewables and am in the process of looking at which heat pump to install in my own home. I am a big fan of heat pump, solar PV & battery storage technology. However, I recently contacted Octopus (who I am also a fan of - their tariffs, at least) for a quote on a heat pump installation. Whilst the price was decent (I can get cheaper), I was concerned by the design specification. To get the MCS certification needed for the BUS scheme grant, the system has to be designed to a flow temperature of no more than 50 degrees C. But, and its a big but, a heat pump that has to run at 50 degrees will not be anywhere near as efficient as a system running at a cooler temperature, at least sub-45 degrees, ideally cooler. Why? The COP (coefficient of performance) drops from more than 430% at 45 degrees, to about 385% at 50 degrees. Why is that important? Because with electricity being just over 4x more expensive than gas, a heat pump system with a COP of less than 400% will cost the user MORE than a gas boiler. I did highlight this to the Octopus rep and she said that they 'couldn't' design to a lower flow temperature. Again why? Basically, to get the system to output the needed heat at a lower flow temperature you need bigger heat emitters (radiators) and Octopus don't want to upgrade any more of your system than they have to, understandably. But should the facts not be outlined to people who aren't as clued up as some of us, so they can make their own decision about long term costs? The issue I have is that interviews like this - where the Octopus rep clearly states that you will get a COP of over 400% - is simply not true with the way Octopus design the system. Yes, in warmer months you will get that level of performance, but in winter, when you really need it, people will be paying more to run the heat pump than a gas boiler. That will lead to a wave of more bad press about a really cool and worthwhile technology that can be what we want it to be IF the system is designed correctly! Octopus - please change your approach, despite seemingly good intentions you are misleading people. Everything Electric Show - please ensure you use your channel to educate people in an unbiased way with all the facts.

[@grahamf695]

Very important observations, thanks. I ws thinking about installing a heat pump with R290 and running it at nearer to 70 C to avoid needing to upgrade my radiators, so I guess that would be a lot less efficient.

[@t1n4444]

Hmm ... a heat pump might be cheaper these days ... but, big but ... an installer might well suggest (!) that to get the full benefits the house needs to be fitted with bigger rads, 22mm pipe throughout to shift the heat and more powerful circulating pump. It's the consequent labour costs that are downplayed. Then the installer might suggest the homeowner really should fit much more insulation and a heat exchanger in the vents perhaps. Sadly we don't hear too much about improving the insulation before the job. Even with a decent grant the cost will still be quite dear. Anyway full marks to the Octopus lady expert ... an accomplished salesperson, very, very smooth spiel and almost believable.

[@bencampbell2041]

400% isn't the cost crossover point with gas because gas isn't 100% efficient... It's closer to 370% with 90% efficient boiler

[@gasdive]

Just buy an air to air split system for dog's sake. You're only pumping up to room temperature then, 18 to 22 degrees depending on your tolerance for wearing a jumper indoors. When it's 15 outside, and you just need to take the chill off, you're looking at COPs of 25 or so in practice. (About 100 in theory, but you never get to the theoretical limit)

[@4evermetalhead79]

Good write up! 👍 This is what i have been saying for both the all electric show and for the fully charged show. Content should be unbiased, verified and educational, instead of being stuck in an echo chamber and just accept and repeat what they are told. This is not the first time they just push out content that is not only incorrect or unverified or misleading but actually negative to people in general. Misleading and misinformation is the age we live in.

[@robertpemberton8562]

As an octopus customer, I really like what they’re doing, but my only criticism of this new heat pump is it looks like a recycling bin at a theme park LOL

[@delboy7039]

Cute then...!

[@allicesmashes]

I knew I recognised it somewhere! 😂

[@kleeenco]

"all in one place in one app" isn't much of a benefit because it's always an attempt at vendor lock in. We need journalists to start asking about open data formats. Still I love these videos, thanks for making them.

[@celt1578]

Octopus are better than most energy suppliers in that they give easy access access to smart meter data etc via an HTTP API. Totally agree on open formats/protocols though; it is really bad that the UK doesn't legally require OpenTherm support like some other European countries do.

[@rogerphelps9939]

Absolutely. Don't touch this witth a bargepole unless clear ways of getting out without losing the heat pump are provided.

[@JohnR31415]

@@rogerphelps9939 you’re not going to “lose the heat pump”. They aren’t only available for octopus customers… it’s not lock in in that regard. OTOH a local API (MQTT for preference, but other options are available) really ought to be mandatory.

[@timrothwell33]

Did you watch the video?@@rogerphelps9939

[@saberint]

And what data is the app collecting (and selling). The pump could be subsidised by the app

[@peterbunker7165]

Strangely devoid of facts. What will be the flow temperature for a 'high temperature' system? What is the noise output? Another vid, please, with less cosy PR, and more information. I thank you.

[@delboy7039]

Most folks don't know/care, as long as the hot water comes... Same as Boilers, who knows what their boiler flow rate is....!

[@ndudman8]

female led... what do you expect ?

[@hedikintheoriginal]

i feel like this 'article' didn't answer anything

[@stucorbishley]

Was about to say the same thing… I don’t think a single question was answered especially when considering the audience is already knowledgeable on the subject.

[@lynnfisher4396]

I have got to say firstly we are satisfied and enthusiastic Octopus Customers having been on their tariffs for a number of years. We are currently on Intelligent Go and have always found that the company respond well to questions and are open with information. But… I didn’t feel comfortable with this video it was far too woolly, no technical information, no Scop figures, no proper explanation as to why the pumps are working at such high temperature ( and if that has an effect on efficiency) how does it compare efficiency wise with existing heat pumps, why is the design so different, what advantages are there for placing the fan in a semi upright bucket etc. The lack of probing by the interviewer didn’t help either, this was a promo video without any serious scrutiny of what the Octopus lady was saying. Very disappointing both interviewer and interviewee. Juries out with this one, we will be in the market for a heat pump in due course but will need a lot of reassurance and evidence before we go down the Cosy route of whatever size.

[@drfisheye]

Agreed. Running heatpumps with high temperature output usually lowers the efficiency quite a bit. And in winter, the efficiency of heat pumps is also lower, so combined, running a heat pump at high temperature in winter isn't all that efficient. Better insulation is still king. And bigger radiators.

[@jfinnie78]

Imogen misunderstood the point that they're specifically not talking about (as she said) "warm when they need to be warm" but instead as Effie said "heating the space when it is cheapest" which is often at 180 degrees to when you might actually want the heating. Eg loading up the temperature of the house overnight on cheap electricity, instead of leaving the house to cool overnight (which is usually much more comfortable for sleeping). There is an obvious high-demand period from 4-7pm when electricity prices spike, and so you'd do well to avoid using a heat pump then, still relatively expensive from 7-9pm. It will be interesting to see how this develops with an energy supplier controlling the heat pump; and whether you truly do end up with comfort when chasing low energy costs.

[@MattSmith-ks2lc]

I prefer the traditional look of heat pumps. This looks like my kitchen bin and I’m concerned it would deteriorate out in the weather.

[@jezlawrence720]

When are we going to get grants for air to air?! Wet systems are ok but if you're going max efficiency why would you take heat from air to put into water to put back to air?! Air to air means you get get rid of radiators and have more freedom to arrange your room, means you get cooling in summer as climate warms right on the days when solar isnt a problem... Crazy that we're only supporting a2w in the uk

[@seanduffy2214]

1. Doesn't do hot water 2. Why would the government want to encourage higher energy usage in summer? I've got some air to air units but I don't really like the nature of the heat compared to radiators or UFH.

[@jezlawrence720]

@@seanduffy2214 1. Neither does a heat pump without a cylinder. Get a cylinder with a heat pump built in, and a solar diverter. 2. If paired with solar - which could be a precondition of the grant - then there won't be extra grid draw on the days you want cooling, because those are the days with the sun. And a solar diverter to soak up any excess and put in your water cylinder. The other reason the govt might want to provide for air to air is to keep people alive in the increased heating events we are going to see. On your point re heating comfort, that's interesting, I've heard some people don't get on with them due to the different nature of the heating. Might be just what you're used to or might be certain types of draughty houses maybe. if there were grants to encourage the sort of market innovation we've seen for a2w heat pumps, maybe we'd start getting enough data to be sure.

[@gsum1000]

@@seanduffy2214 What higher energy usage in Summer? Ours uses solar electricity on the few days that justify its use for cooling. HPAC is definitely the way to go. They heat the rooms virtually instantaneously and are far cheaper to run than any type of radiator. Combined with a small hot water heat pump, HPACs are the perfect solution.

[@seanduffy2214]

@@jezlawrence720 I only state the reasons why government won't give grants on them. If you say you need to add solar to the pot to overcome all of that then you've got a whole level of complexity you are introducing and would require multiple suppliers. We are a way off needing a2a to cool homes. But I don't think they'd go for grants on those anyway. Nor is it a good use of government money for a few days a year it's needed. I like our a2a system but I wouldn't have it as primary heating. We have a well insulated draft free house but I find you get big temperature differences in the same room and harder to maintain a stable temperature. It's good for the office so I don't need the heating on elsewhere and such low running cost you can't see it on the smart meter. If I had endless money I'd go for UFH everywhere, it's a lovely stable temperature.

[@seanduffy2214]

@@gsum1000 By the nature of using it in the summer vs. not having it you are consuming more energy. The grants are there to encourage less energy use. Not everyone will have solar, and when we run our AC it tends to be to keep the place cool at night anyway once the sun has gone down.

[@Rick-vm8bl]

Great to see Octopus working on their own solutions, but the details were sorely lacking and felt like they were skirting around anything that might have made it seem less than ideal. Also found it slightly odd that they're testing it in 70s and 90s homes when the vast majority of UK housing stock is pre 1940s, and its those that nobody seems to be willing to test on, probably for a good reason.

[@Soulrollsdeep]

Is there much building reg difference between a shed someone built in their back garden and houses built before the 1990's? Insulation wise...I think not.

[@logicalChimp]

They did say that those two housing types covered more than 50% of the housing stock in the UK... and the older stock would be more likely to need upgrades, whereas they're probably trying to work out how to minimise changes needed for 'newer' properties, to help keep costs down.

[@firstnamelastname2669]

Lets hope the installer training is good, because looking at the skillbuilder/heatgeek videos it's clear that this is make or break for heat pump installs. I just hope the government understands that too; perhaps a percentage of available resource should go on training.

[@crm114.]

Indeed. An absolute key first step is to get a proper heat loss survey done on your house. Oversizing is a common problem which can lead to reduced efficiency in the running of the heat pump. We had one fiited and it’s working extremely well but I did my homework extensively.

[@keithbrown339]

So right, I'm surprised Octopus has not bought heat geek.

[@littlechanges13]

Can confirm, having had an Octopus survey literally this afternoon, the training isn’t up to scratch…

[@David-bl1bt]

​@@crm114. oversizing is prevalent in the heating industry. ALL gas boiler installations have oversized boilers fitted....because it is a get out of jaul card due to lack of (if at all) correct home heat loss calculations.

[@Neilhuny]

Make or break for heat pumps installs?! What madness is this?

[@user-le1cm3qz4u]

So we’ve spent two decades pulling out old boilers and immersion tanks in favour of efficient condensing combi boilers. Now we’re being told pull out the gas boiler for a heat pump, oh but you’ll need that tank back again.

[@kevinjackson6387]

Ya going backwards who wants one of them big lumps of metal stuck outside ya house ,then puta tank back in for hot water then prob got to change your pipe work and rads ,combi every day of the week

[@Phild-gx4pt]

I am also a proud Octopus customer and would love to install a heat pump. But I think the average £500 installation cost quoted for a well insulated house might be a little astray? We live in a relatively new, highly insulated, detached house with underfloor heating throughout the ground floor, and radiators on first floor. We are rated A for EPC with a score of 96. Our heating is currently provided by an efficient, four year old gas boiler and hot water tank. So we are extremely suited for conversion, as no change to radiators or associated pipework would be needed. My quote for conversion from Octopus was £3,880. That means the total cost of installation, including government grant, is actually £11,380. Sadly, whilst I would love to convert to a heat pump, even a price of £3,880 to me is just not cost effective as it would take quite a few years to recoup the outlay. And there cannot be a vast number homes in the country more suited? And there must be a question mark over whether the scale of government grant is affecting installation costs. It would be very interesting to see some analysis of quoted costs which might show where most of the installation cost is being spent?

[@rogerphelps9939]

Please consider the environment, especially the environment that our grandchildren will have to live in when making your decisions. Decisions made on very short term costs can be disastrously wrong.

[@jamesgrover2005]

What kind of heat pump was it? That's not far off a ground source heat pump price here in the Netherlands.. air source are nowhere near that price.

[@paulnextlevelbusiness2257]

Don’t be so tight and get on with it! 😂 likely your install has additional considerations to it like pipes, rads, location, elec supply etc etc

[@hughmarcus1]

It’s a well established fact that government incentives tend to drive up prices. As for the Octopus Quotes. I’d suggest getting a quote from Viesmann, they’re a far better heat pump than anything Octopus do, in my experience they’re keenly priced too. Viesmann aren’t well known in the UK yet but are market leader in Germany & Austria

[@stratosphericozone2645]

That is shocking and disappointing. My house isn’t as so well suited. It would be interesting to see the breakdown of the quote to see where all the expenses is going. I hope you get some more quotes and receive a much better price.

[@S5GSA]

All sounds great, every time we contact Octopus [customer over 3 years now] they're not installing in Scotland. Awesome, thanks Octopus

[@adus123]

looks like a big bin with a fan on it.

[@cipnt]

I'm proud to be a customer of Octopus Energy, such an innovative and ambitious company which is pushing to make sustainability more affordable.

[@crackjoker-yb8jp]

I was a customer but their customer service was non-existent. Went over to OVO energy and their customer service is excellent.

[@JohnR31415]

@@crackjoker-yb8jp really? The company that charged a friend for gas whilst insisting they didn’t have a meter?

[@Retiredrovingroger]

I must admit my praise of Octopus is wearing a bit thin after my heat pump survey first appointment they didn't turn up and then when they decided I couldn't have one they lost my £500 deposit

[@tjwtf28]

the fact this heat pump is designed to work intergrally with their app means they're just trying to lock you in with them. This is anti consumer

[@Scott-cm8sv]

@@Retiredrovingroger The deposit is fully refundable, chase them!

[@markosborne7311]

Body language suggested that the positives are over sugar coated?

[@RichardBrooklyn]

This is an ad.

[@crm114.]

Heat pumps can be made to work with an efficiency >400%, that's all you really need to know.

[@t1n4444]

@@crm114. Surely the installation cost, amount of upheaval, payback time might be of interest. 400% ... seems a tad optimistic.

[@logicalChimp]

@@t1n4444 400% isn't overly optimistic - but it's also the target they have to heat for the heatpump to be more cost-effective than a boiler, at current gas/electricity prices... and the quote I got from Octopus included e.g. the installation of a new water tank, replacement of some radiators, and so on.

[@jonb5493]

@@logicalChimp Can you post some details of your quote?

[@ScruffyMisguidedAndBlue]

Why is the fan angled up to catch rain/snow/dust/bird crap?

[@bobtahoma]

They sure as hell aren’t quoting £500!!!

[@logicalChimp]

They were for me (well, quoted 1k, prior to the gov. increasing the grant), excluding 2x costs: Increasing my loft insulation in order to qualify for the gov. grant, and prepping the area (currently a bramble-patch) where the pump would be placed.

[@shmavitz]

​@@logicalChimp lucky you! I've just been quoted £7500, and that's after the grant...true cost was £15k. What a joke, I'll be keeping my gas boiler for now.

[@nickthegriffin]

​@@shmavitzwise choice

[@HytelGrp]

Two comments: If it is summer in the UK, this means you are cooling the residence. This means you would not have a comfy fan to blow in your garden, as it would be exhausting hot air. This angled upward fan opening would seem to allow more precipitation to get inside the 'bits n bobs' versus the side exhausting models.

[@JOOI525]

Thought I must be missing something as they seemed to completely ignore this point......not just me who questioned it then!

[@mralistair737]

i doubt it has a cooling cycle. but you might be generating hot water.

[@gasdive]

No cooling cycle because it only makes hot water.

[@jsptravels]

@@mralistair737where Air 2 Air has the advantage, as that’s just the new name for air conditioning which does heat as well as cool …

[@andrewcunningham1]

The unit would cool the air during a hot water cycle. There is no suggestion here that the unit is used for cooling the property...or water.

[@DuarteMolha]

Octopus is a breath of fresh air in the UK energy market. Putting all other companies to shame really.

[@toyotaprius79]

Either octopus or nationalisation

[@t1n4444]

😂😂😂 I take it you're an Octopus "influencer", then. Do try not to be quite so obvious.

[@DuarteMolha]

@@t1n4444 nope. Just like what the company has been doing to shake up the uk energy market and bring about renewable energy solutions

[@Soulrollsdeep]

@@toyotaprius79 Would rather stab my own eyes out with my own frozen excrement than give nationalisation even a sniff of a chance. You think the fucking government can innovate like Octopus and others are? Especially a Labour one?! 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

[@jonb5493]

They are pretty good + seem to be pushing the envelope. My only problem with them was that until recently their pre-sales "attitude" was discouraging, like, we don't want your biz and we don't want to know anything about you, please go away and stay with your current supplier. They have very recently improved, however.

[@Daddo22]

As a SW developer I find "mostly female lead firmware team" a very weird thing to try to score "social justice" points on. Women in managerial positions have been a normal thing for a long time and it's not like they had mostly female firmware team... Don't get me wrong, I am for the freedom of choice of occupation, equal pay for the same work regardless of sex, race, religion age etc. and for fair pay for the value that the work creates (e.g. education and healthcare jobs often struggle with this). The fact that vast majority of engineers are male is not because engineering is hostile to women, but because most women are more interested in doing other things and it's the very same reason why you don't see many male nurses... I've admired Octopus Energy for quite some time now for what they're doing and been envious that we have nothing even remotely like it here in the Eastern half of Central Europe, but this is a small red flag for many people now... Why does almost every company (and political party) that works to protect the environment and fight the climate change also have to preach the "social justice" BS?

[@AdrianNelson1507]

Yes the #girlboss bit didn't go unnoticed.

[@gargar3]

Why oh why indeed. This is a technical solution attempt to a climate change issue, not a platform for woke promotion. I would be more interetsed if my 80 year old sister who lives alone in a bungalow could afford to install and run a system copmpared to her combi gas boiler, what's that got to do with a female firmware team ???

[@TheNeoChan]

Why would it be running and giving you cool air outside on a hot day?

[@OracleTruthSeer]

Because you'd still want hot water?

[@revengefrommars]

I'm thinking she doesn't understand how a heat pump works.

[@rogerphelps9939]

Heaing water.

[@samjordan3029]

It extracts out the cool air when its running to create heat (opposite of fridge)

[@TheBoothy666]

This isn't an AC unit pumping heat outside (although the tech is basically the same). These heat pumps are only for heating water inside (either hot water or radiators), you don't need radiators in summer, but as above point out, people still need their hot water, so when running, it will still push out colder air outside, as it's extracting the heat from the outside air, to heat up the water, in the water tank inside the house, so you'd still get a cold breeze outside, even in summer.

[@Jaw0lf]

I love the way Octopus has turned it's back on the way things have always been done and provided the best tariffs to suit modern day technologies.

[@chrismawby1805]

If you have a house like ours that is two thirds solid brick, also has double glazing and loft insulation you won’t be able to install a heat pump, Octopus did a survey on our house and advised that we should not install a heat pump because they don’t do one big enough, the house is a four bedroom, we don’t use two of the bedrooms and only heat two downstairs rooms but apparently the heat pump needs to heat all rooms to be efficient. Looks like we are stuck with gas for the foreseeable future.

[@J.S.A.]

Heatgeek would say otherwise. We have similar set up no wall insulation and are looking at a system.

[@andrewmullen4003]

Have you considered infra red panels?

[@malcolm8564]

You obviously need to insulate the solid walls.

[@gasdive]

That's complete codswallop. Put in one or two split air to air units, one in each room you want to heat. Just needs a hole in the wall, an electrical connection run outside and a bracket screwed to the wall. Vastly more efficient too because you're only pumping the heat up a few degrees not up 35 or more into a tank. You should get a good size one (7kW cooling, 8kW heating) installed for 1500 quid (or they're ripping you off).

[@jamesfisher4309]

Neither the presenter nor the octopus representative seemed familiar with the second law of thermodynamics, which dictates that the higher the output temperature ( for a given source temp) the lower a heat pumps efficiency.

[@gasdive]

It seems like no one in the UK understands that it takes more energy to pump heat to 50C than it does to pump it to room temperature.

[@EugeneLambert]

I'm sure they are well aware. However most UK housing stock is poorly insulated, so high temp (and thus slightly less efficient) ASHPs offer a potentially easier swap for an existing gas boiler. Ideally, we'd massively overhaul all UK housing insulation and airtightness and then install lower temp, more efficient ASHPs, but in the meanwhile ... Also, and I'm no ASHP expert, maybe their ASHP using R290 can provide higher temps at higher COPs?

[@gasdive]

@@EugeneLambert no. Air to air pumps from outside to room temperature. Air to boiler pumps from outside to boiler temperature. Even a "low temperature" boiler is always hotter than room temperature.

[@gasdive]

If people understood that simple, and to me, obvious, fact then people would *laugh at them* when they tried to sell such a ridiculous thing. Just put in a split system that's 1/10 the cost and much more efficient. This air to boiler is a con job. It barely works but costs thousands and can milk subsidies.

[@gasdive]

The actual cop is the hot side temperature in Kelvin divided by the difference between the hot and cold sides. Real machines are about 40% efficient. So to pump from outside at 15 to inside at 18 runs around 38 cop. To pump from 15 to 45 (a low temperature boiler) gets you a cop of about 4.

[@ahaveland]

Difficult to believe but propane has a very low global warming potential (GWP) of 0.02 which is surprising because it's a molecule with many modes of resonance, and would presumably break down into CO₂ and methane by UV radiation. Still, IPCC 6 report says it is very low, so I'll go with it. Heat pumps should be cheap - they are just bidirectional fridges, consisting of a motor, compressor, valve, some tubes and one or two fans, all of which are massively mass produced!

[@logicalChimp]

Fridges don't live outdoors. The exterior unit has to e.g. ensure that it doesn't ice itself up on the cold-side when temps are -20, that it doesn't overheat when temps are 35+ (it still needs to run to provide hot water, even if it's not needed for heating the house), and nor do fridges need to run the coolant lines from the compressor to a separate tank to 'store' the heat.... oh - and the space being managed in a fridge is rather smaller than the size of your house :p

[@jonb5493]

@@logicalChimp Your points are understood but I'm still disappointed with the hardware pricing. Of course I am emphatically not surprised by the installation costs - it's difficult and there are many horror stories of incompetence.

[@Kwirks]

I'm with Octopus, I'm Octopus Go at the moment, with a 14.4Kwh PHEV car, as well as the GivEnergy All in One 13.5Kw home battery, I have the IBoost+ to heat my water tank & 4Kw solar panels & triple glazed thru-out. I asked for a quote from Octopus, within a day I one for £4500. No one visited to see what's best, where to place the pump or see if I needed any further additional insulation. I'd much rather see a person, with advice or even three quotes following the heat geeks information. Octopus still needs to work on the personal touch & not the hard sell, where we all seek compensation in ten years time?

[@sg222]

Doesn't the chances of snow or stuff gathering on the fan in this design more? I know the fan might be running but still though? Normal design seems easier for maintenance of fans

[@keithbrown339]

There must be a reason for it. Surely . Maybe to help with the defrost cycle or prevent defrost completely.

[@tonydaddario4706]

It doesn't really snow in the UK anymore but it looks like you maybe able to use it as a snow machine. Hurrah !!

[@hometechUK]

I agree I love the design but it is design over practicality not just snow but really heavy rain or hail can get into that farm. Much easier than most designs?

[@stratosphericozone2645]

Could it be a safety measure? By blowing more upwards it can then be located closer to a footpath where it unlike a regular heat pump wouldn’t cause a lower temperature and increase risk of ice and a slip hazard.

[@markbennett6658]

I’m an Octopus customer and a big fan. However when I enquired about the Cosy 6 the issues were firstly that you need to have a massive hot water tank fitted (I think 1m x 1m x 1.8m which won’t fit in the location of my existing hot water tank or boiler and will be too large for loft installation as well. The Cosy 6 is apparently only suitable for a 3 bed semi and a larger version hasn’t been launched yet. I was quoted £5000 even allowing for the government grant and nearly all the existing Octopus installs are for regular heat pumps so far not the Cosy 6. So I’m a little disappointed but hopeful that the product will be further developed, refined, reduced in cost and proven whilst the government grant is still available.

[@davedevonlad7402]

You can get a slimline tank from octopus as that's what I am getting, as for the manufacturers details and you can get all the tank specs you need from octopus.

[@markbennett6658]

@@davedevonlad7402 I know there’s a slimline one but it’s not that slim and is 2m tall, so still not that easy an install. Octopus told me they’ve actually only fitted a handful of actual Cosy 6 heat pumps for beta testers and it’s the new tech in those that interest me. Not a lot has been said about them publicly since the launch last September and their representative talking to Imogen was guarded and only really confirmed that they are intent on training a load of new installers. So early days for me still!

[@t1n4444]

Hmm ... does that install include the acrows to keep the ceilings where the architect decided they should be?

[@Retiredrovingroger]

I was quoted £4300 pounds from Octopus before my survey, and then after a second survey, they decided it would not fit

[@davedevonlad7402]

@@Retiredrovingroger What was needed to be done and how big is your property as my 3 bed town house is only £550 for a ASHP "dakin" a new 180l tank and two new radiators. £4300 sounds a lot to me for a standard fit.

[@markthomasson5077]

Be interested to see a breakdown of their £500 cost. Maybe make up a well insulated house etc to see if you can get a quote.

[@michaelgoode9555]

Pity they don't have an 1870's to 1900's terrace for testing. I am always put off when somebody says that they are "turbocharging" their offering. It just makes me think that it's all vacuous claims. Must be the tory government association ...

[@rogerphelps9939]

Offer your house to them as a testbed for a Victorian terraced house installation. All costed but free to you of course.

[@yellownev]

Small poit - there are a lot of people who are on oil not gas boilers. Octopus would not fit an ASHP at our cottage despite a decent heat loss survey - it was the lack of willingness to install the hot water tank in our garage that saw the project fail and the government grant being taken away from us !! So for me Octopus need to be more flexible on the installs also look for a ASHP with built in hot water - similar to my outside oil boiler

[@gasdive]

Just get an air to air installed for a grand that most of the time would be 10 times more efficient than an air to water because it's only pumping the heat up a few degrees, not 35 or more.

[@keyserxx]

I'm all for a heat pump, been banging the drum with my family for over a year now thanks to Heat Geek and this channel. There may be a big problem incoming btw with smart metres, mines never worked because my flat has no mobile signal. All smart metres in the UK use 3G and that is being decommissioned by the gov/network providers soon. Won't that render all smart metres in the UK no longer smart when that happens? Maybe they should work by syncing to your phone/app instead. EDF are aware my smart metre doesn't work, a bloke comes out and all he can do it turn it off and on again and still no signal, he reports back to EDF and.. nothing. is it my job to chase them about this? nope.

[@simhedgesrex7097]

Not sure about the sloping angle - it looks like it would encourage rain to get in. Would like to see a Heat Geek review of this heat pump, and high temperature concept.

[@th42]

issues with siting pumps needs to be addressed. The huge numbers of Victorian terraces in the UK massively impacts this. Not to mention the cost of integrating into existing. Fine if you’re replacing your whole system, but once you add in moving the water tank, replacement radiators stc etc 5he cost is too high.

[@logicalChimp]

Those 'integration' costs were included in the quote I got from Octopus (inc. 4x replacement radiators, 1x additional radiator, new water tank, and some new plumbing to integrate everything to the existing plumbing). That said, I agree siting issues for terraced homes is an issue (my planning permission was refused because the outdoor unit would end up too close to the neighbour :/)

[@malcolm8564]

I think a more important issue than heat pump cost is the cost of the insulation that we all know we need before installing a heat pump.

[@gasdive]

You don't need to insulate any more than any other heating system. They're cheaper to run. Assuming you don't buy this one which heats hot water to a high temperature, and you get an air to air one which only needs to pump up to room temperature, making it 3-10 times more efficient.

[@rinnin]

Strange angle to have the fan instead of vertical. Hope they've got some good bearings in them! 🧐

[@peterjones6322]

Millions of units in the USA have square units with a vertical fan. Our house in the USA had one like that in the 1980s.

[@Etacovda63]

@@peterjones6322 an angle is not vertical.

[@koitorob]

@@Etacovda63 What do you think 90 degrees is?

[@Etacovda63]

@@koitorob if someone says to you 'at an angle' do you think 0 or 90 degrees? If you do, you're weird. I mean, the post I was replying to literally was questioning the that said "Strange angle to have the fan instead of vertical".

[@nickwilliams911]

Only £500 if you have a gas boiler, but if you are building a new house there is no government support to install a heat pump

[@lumbarsupport]

but, importantly, a self build is eligible for a BUS grant

[@gloru8278]

It’d be fairer if they stated that their install costs that little after considering the BUS grant. Otherwise folks might think that Octopus have found the holy grail everyone has been looking for. Except, they haven’t.

[@James_Ryan]

Are there any heat-pumps that use air-to-air rather than air-to-water (Americans call this a 'mini-split')? I'd like to be able to cool as well as heat.

[@benwouda]

They are already dirt cheap and old technology, so not much innovation is to be expected.....

[@brianballard905]

In the UK, air to air systems don't qualify for the subsidy.

[@James_Ryan]

@@brianballard905 Interesting, cheers for that.

[@dirvine5341]

Air to air has more refrigerant. You don't want to be pumping propane around the place. Better its sealed outside within the heat pump

[@tarant315]

@@dirvine5341 I thought it was only about 250gram (if R290 is used) and should be no problem in rooms above 9sqm

[@nssimpson]

IMPORTANT NOTICE: This (promotional?) video should be pulled immediately. I got a quote from Octopus after seeing this. Over £5000. I spoke to them and they said £500 is unrealistic.

[@lumbarsupport]

what exactly is the £5,000 paying for?

[@nssimpson]

​@@lumbarsupportapparently they look at the EPC of the home and quote based on that. However, according to the quote the price only includes the heat pump, water cylinder and necessary pipework so I don't really understand why the price isn't £500 after the grant. 🤷🏼‍♂️ I think FC should remove this video altogether or at least put it on their other paid promotions channel. TBH, I watch less and less FC.

[@stephenlowewatson5156]

Biggest concern I have over heat pump is where to put it (on our 1930s semi) also where to put any hot water tank. I'd also be very cautious about buying a heating system that's locked in to my energy supplier's systems especially via an app. What happens when I want to switch suppliers? What happens if I lose my phone or internet connection? A physical control panel is essential.

[@garywilde6171]

Interesting, but my quote was £5,500 after the discount for an average semi detatched house, not £500! Also put off by the fact they want full payment upfront immediately before survey etc. FYI the pebble shaped high temp unit is not available yet. it's just in testing. I like the looks of it, so will hold off for now.

[@RoyalEnfielderKtm]

Maybe already commented? I did not read the 691 comments. At around 3:00 : On a hot day you would want to cool the inside of the house. In the Garden the heat pump would blow hot air (the calories moved out from the house inside). It would not blow cold. Unless it is used not for A/C but heat the water as you do even when it is hot outside ;-)

[@Lfreeman98]

Installation engineers are one part of the puzzle. Diagnostics & repairs will still be required, are they also trining hydrocarbon certified refrigeration engineers?

[@edc1569]

Bravo to octopus, I think my main concern is tying this into an energy provider, the government needs to step in here and make sure this can operate with other companies energy tariffs or give the user full independent control. Otherwise we will repeat the smart meter nonsense where all the first gen units had to be ripped out because the government left it to the energy companies to sort out, and of course to them there was no value in you being able to transfer the smart meter to another energy provider - a huge waste of tax payer and bill payers money.

[@andrewsaint6581]

She said it was going to be available for all.

[@daveh6356]

Nice idea but a commercially integrated solution will always prioritise profitability of the provider over cost reduction for the consumer. What currently provides a clear customer benefit will ultimately transpire to be a captive system. Only divorcing energy service & energy product providers will ensure consumer interest.

[@PaulRansonArt]

Having been quoted £3690 on top of the BUS grant (£7500) I wonder how Octopus can quote a cost of just £500 or even free. Ive said it before ... its a race to the bottom. Who can get the cheapest kit installed the cheapest wins! .....But when the dust settles and the BUS scheme is history where does that leave the end user. Maybe dealing with a poorly designed system and cheaply made ASHP? Sorry to be so cynical but having seen the PPI misselling scandal and the 'buy a diesel its cleaner' campaign I'm not convinced our housing stock is anywhere near ready for ASHP that can return a fraction of the claimed savings. For now I'm on the fence and keeping my old gas boiler for the time being.

[@lumbarsupport]

what exactly is the £3,690 paying for

[@PaulRansonArt]

@@lumbarsupport - my point - what on earth costs £3690 on top of the £7500? They ( Octopus sales ) said it was for additional radiators. I asked how could they know this before the survey? They said it was a likely additional cost and if the property didn't need it they would refund any difference..... Hmmmmm....... I don't think so. As for Cosy6 ... that's been on the back burner since September 2023. Sales dept wouldn't comment on availability or costs. So the headline grabbing £500 or FREE is just that - click bait by Octopus. Don't get me wrong - I like Octopus - I'm one of their customers. But just tell the truth and stop the hype.

[@erinthecat4206]

So very refreshing to see the facts and positives being put out there by a trusted source and from a trusted supplier - the country's leading supplier. It will be lovely when the Cosy6 can be produced in a smaller size. I need a 2.8kw heat pump to balance heat loss. Having said that, my air-to-air heat pumps work really well in winter but don't do hot water. There is a Multi + system from Daikin coming soon that does air heating and hot water! Maybe Octopus can consider that as a small cylinder goes with it. All said and done, they are far far cheaper to run than my gas boiler.

[@tarant315]

there are hotwater cylinders powered with a heatpump for just over a grand. If it takes the indoor air to convert to hot water then you add ~200 watt to you heat loss

[@markwatson2967]

​@@tarant315 Yes, thanks, seen all those. Due to size constraints, I can't have the new Mixergy two-part cylinder, without structural work. However, the Multi+, assuming it arrives as promised this year after certification of its specific cylinder, may be possible due to far smaller size.

[@scottcompany4040]

I've had my high temp Vaillant Heat Pump for nearly 4 years. It can heat the water to 70° Centigrade and so easily copes with standard radiators which would normally be about 55° to 65°. My average efficiency over 12 months is 3.2 which is pretty good I think. The Oil & Gas companies are just spreading huge amounts of misinformation because they know Heat Pumps are going to wipe out gas boilers for most homes. #StopBurningStuff

[@youngwt1]

Was so happy to get rid of the tank in our home when we bought it and upgraded to a combi, not convinced this is for me as I now don’t have the space for a tank

[@philreilly6959]

Hi, I watched your video when you put it up and I was enthusiastic. In fact, I am in the process of getting a Heat Pump from Octopus (just waiting for a re-survey) and I have asked if I can have the Cosy 6 rather their current Daikin offering. However (& it's a big however), MCS has now tested the Cosy 6 and it didn't do very well. At 55° flow temperature, the SCOP is less than 3, which, as I'm sure you know, means that it would be more expensive to run compared to a dirty gas boiler. Even at a low flow temperature of 35°, the SCOP is still less than 4. It's very disappointing!

[@colinfarrell6444]

Such a poor interview - maybe less gender politic virtue signaling

[@BMWHP2]

In the Netherlands, it is the other way around. We had insulation for the floor for around €2.000 and get €130 back from the Government. A fully electric heat pump for our house is around €11.000, we get €2.700 subsidized and have to pay €8.300. Thanks but no thanks. The Dutch government could learn a thing or two from the UK.

[@zapfanzapfan]

Where I live it snows... how does that fan handle a 20-30 cm snow coverage? Does it need an extra roof built over it?

[@karlInSanDiego]

@2:51 On a hot day, running AC inside the house, that fan will blast you with HOT air. You won't like the air coming off of that in any season. It's the opposite of what you're conditioning for in the home.

[@andrewcunningham1]

This is not an AC unit.

[@karlInSanDiego]

@@andrewcunningham1 Thanks. In other parts of the world heat pumps are two way devices that can heat and cool as they have a condensor/evaportator inside and exchange heat with the home's interior. I forgot Britain is saddled with boiler/radiator heating which means this can't provide home cooling.

[@andrewcunningham1]

@@karlInSanDiego Hi Karl. Actually all UK heat pumps are reversible...they have to be to defrost the system in winter. But generally we don't use them to cool in the summer...yet.Some are experimenting with a bit of gentle cooling that just avoids the dew point.

[@DragonXDrei]

Our heat pump is currently killing us, and the main issue is that the consumers are left on their own after installation to find out the best way to run it.

[@camlegs2423]

I myself fitted an air to air Mitsi elec heat pump in 2000, to keep the top floor warm. When we moved in there were no wet system fitted. Just a gas fire down stairs and through the wall gas heater. That was first to go when we moved in 1997. That unit looks over kill for my place. I use electric to heat water and have fitted a far infra-red under floor heating Matt in the main living room. Good bye gas fire and gas hob this year. Looking to have the gas meter removed soon to stop the monthly standing charge. I have solar panels but need a good battery storage next

[@mspalmboy]

Excellent news. It's fantastic to see such great energy efficiency improvements. Thanks so much for this brilliant episode.

[@vanpeers]

500£ with 7500£ subsidy. So the real cost is 8000£

[@nssimpson]

Octopus online quote says £5,000 after grant. Don't know where £500 came from. 🤷🏼‍♂️

[@nssimpson]

Well I just filled out the instant quote and it says I'm currently not eligible for a heat pump even though I'm in a well-insulated detached house, have sufficient space, etc. 🤷🏼‍♂️ Just changed option to I'm not renovating my home and now it says I'm eligible (surely they'd prefer to install in a house being renovated). Quote was just under £4769 after grant. Not sure why.

Greed.

[@nssimpson]

@ their literature says this 6kW heat pump is only suitable for an average size 3 bed house. Larger models coming later in the year. Interestingly, I imported a 24kW swimming pool heat pump direct from a factory in China and it cost me around £1k plus several hundred quid for shipping. There are huge markups on these things.

[@gasdive]

Get an air to air split 8 kW system with cooling as well installed for under 2 grand. Plus vastly more efficient because it's only pumping up to room temperature

[@kevinsmith3343]

I've long wondered why more heat pumps weren't paint black for that little bit of solar boost from absorbing the sunshine better. Better still perhaps combine one with a Trombe wall type arrangement.

[@elementaldraco]

Let's see HeatGeek test these out and get some real life performance results. Rather than what seems like promotional marketing blurb in this video.

[@flukeylukey7559]

I've never heard of using propane refrigerant except for 3 way fridges in campervans, how long will it last. I've had a high temperature refrigerant before CO2 in a Sanden hot water heat pump, heated water twice as quick as other types, awesome unit.

[@brummiesalteno-81]

Unfortunately not in my area yet. I was surprised as I live in Birmingham I would have thought big cities would be prioritised.

[@legod1976]

In the last 5 years in the UK it seems that the housing stock has become suitable for heat pumps even though there has not been a country wide scheme for improving insulation in housing. I don't think heat pump technology has improved to overcome poor quality insulation in housing. If I'm wrong please enlighten me. I'd love to have a heat pump.

[@glightsolutions]

R290 are in many Swedish heat pumps for 20 years plus. Nothing new there. Great to see alternative designs too.

[@lesthedog]

"So many houses are ready for heat pumps to be fitted"... including the hundreds of new build houses being built with gas boilers in my local area. 🏘️🤔

[@bartymurns]

Its not going to be cold air blowing out of that fan on a hot day unless you have the heatpump set to heat the house!

[@mralistair737]

or the hot water.

[@MySolarGen]

Sorry Imogen but Norfolk here where most of is don’t have gas in villages just oil and everytime I go on octopus they say sorry not eligible ??? Detached well insulated home with space 🤷‍♂️

[@crm114.]

What's gas got to do with it? You just need an electricty supply for a heat pump to work. I've just had a heat pump installled and had our gas supply removed.

[@MySolarGen]

I have electric heating what I’m saying is most of Norfolk is on oil why not prioritise the areas that give off the most dirtiest forms of heating? I applied apparently do not qualify cliff as a previous poster has said actually many it’s all very vague no real details of efficiency I would love a heat pump and radiators.

[@Stuart_Johnson_Solutions]

The government figure of 90% being suitable for heat pumps is based on no valid data whatsoever. High temperature heat pumps have included more houses in suitable, but still assuming that replacing whole heating systems, radiators pipework and hot water cylinders, does not constitute 'suitable for a heat pump'. Anything could be if you started again from scratch!

[@gasdive]

And you should start from scratch. Retaining the boiler is ridiculous, because it means that the heat pump has to pump the heat 30 or 40 degrees higher. Obviously it uses much less energy to pump heat up 10 degrees from outside to room temperature than pump it up 40 degrees from outside to boiler temperature. Plus you're spending 10 times as much and you don't even get cooling or dehumidifying.

[@mach0elf]

@@gasdive how could I find about air-to-air in the UK? We've a 50 year old house, and are getting the ceilings replaced due to artex falling apart, so would have a good opportunity to run new pipework/ducts then.

[@robjones8950]

Does this mark the end the fabric first mantra?

[@leefrancis5446]

Biggest issue with heat pumps is the installation not the hardware. Not very aspirational design. Looks more like a rubbish bin alas. I hope Octopus are training their teams to the same standards as Heat Geeks. Given the vast number of installations they plan to do they risk a massive mis-selling scandal some way down the line otherwise. Would be gutted if that happened as love what Octopus have done in such a short time.

[@paddylogan13]

After 1 year, 2 engineer visits and countless telephone calls, Octopus has failed to install a smart meter so I shan't get too excited about this.

[@kevfquinn]

Interesting - although my home is very much not in that 80% that are the target for easy pickings. 1937 build originally designed for fireplace heating throughout, it'll be pretty much last on anyone's target list for meeting quotas cost-effectively - if at all. Currently on Combi gas, and minded to go air-to-air (not least to lose those wall-space-consuming radiators).

[@iblack585]

I am really puzzled by this having had a quote from Octopus of about £6k last year, which included the grant. Is this new heatump £5k cheaper than they were last year? This video really looked more like an advertorial than a useful guide.

[@mikeyc1348]

I've not heard of high temperature heat pumps before. They sound just great for installers seeking to cut upfront costs to speed up the job. They might also help some customers to avoid replacing radiators or pipework etc. However, I think there is a risk they'll be used to cut corners i.e. deliver less performance and therefore higher long term energy costs. This government scheme is a mess. I remain concerned about the quality/experience of the installers and how systems will be maintained. I'll be sticking with a gas boiler until the market in the UK is more mature and there is less confusion.

[@AJRcoin]

Looks like it will sit well amongst the bins

[@paulaschofield]

I wonder if the Cosy will come to Octopus Energy NZ? We have a gas ducted central heating system, but to switch out to electric costs tens of thousands of dollars and lots of disruption switching out the ducting because it's not suitable for the heat pumps currently sold here. Unfortunately absolutely no subsidies here in NZ, so I wonder what the full cost of the Cosy is?

[@enesvital321]

I was so exited hearing 7500 grant wow then i tought let me install, octupus quoted me total cost 10 504£. With 7 500£ gov grant i have to pay extra 3 004£ . I live UB1 post code two bed flat. I am happy with my gas boiler.

[@nickthegriffin]

It will also work much better trust me I install these every day you seriously don't want one

[@robcole5805]

Really interested in the Cosy 6. It seems to have been delayed since the announcement last Autumn but hopefully with videos like this popping up it'll soon be available.

[@jonburgess9821]

My house is 150 years old probably in the 10% and we've installed underfloor heating, but I can't get anyone to confirm that their system will not only give us hot water but can supply the underfloor too! Also, these things need to be 300mm off a wall! When will they be able to be located in the loft space?

[@robinbennett5994]

It sounds like Octopus are only interested in the easy, standard houses, where the grant covers their cost. Have you discovered the Heat Geeks? They're the real experts in complex systems.

[@jonburgess9821]

I have seen them on KZbin but maybe time to engage thank you

[@rogerphelps9939]

They will never be located in a loft space because they have to extract heat from air which has a rather low thermal capacity. That means that the heat exchanger must be located in the open where the air is constantly moving even in the calmest weather. The air in a loft will not be exchanged fast enough,. Regarding underfloor heating it is a brilliant match with a heat pump. This is because underfloor heating can operate at lower flow temperatures than most radiators. The lower the flow temperatture the higher the Coefficient of Performance or output heating power divided by electrical input power. That means lower bills.

[@jonburgess9821]

@@rogerphelps9939 I run the systems at 65C but you do have to understand how they work. Same as a ship tanker, slow to get going and a long time to stop. I've a 20kwh home battery system, oversized to enable the gas boiler to go

[@gasdive]

At 65C a heat pump is a ridiculous proposition. The theoretical limit for a heat pump is the hot side temperature in Kelvin divided by the difference between the hot side and the cold side. You usually get about 40% of the theoretical limit. So if it's 15 outside, and you want to make it 18 inside, with a 65C boiler, that's 338K divided by 50, that's 6.76. times 40% that's 2.7. So you're looking at a COP of about 2.7. With an air to air, the hot side at 18C, that's 291. Divide it by the difference between inside and out, that's 97. The theoretical limit is 97. Multiply by 40% gives you the likely COP, 38. Now you could say that the cop gets worse for the air to air as the outside temperature falls, and that's true, but it's always going to be better than the air to water.

[@Angel_VR18]

Looks like a bin, wouldn’t want that outside my house. Also you mentioned old breeze on a hot day, you wouldn’t want it running on a hot day as indoor temp would be satisfied.

[@gavbansal967]

£500 for a survey (refunded when order is placed) Up to date EPC is advised though good insulation is the key. Max area covered by Octopus heatpumps is 200sqm, but not by the cosy6. Not sure if the higher temp heat pumps have two compressors or not, would be interesting to know this, and also what sort of scop is expected.

[@brucekennedy5274]

I renovated my house about 4 years ago, and tho I've been a super-fan of Fully Charged, EV's, better tech for the environment etc, for several years already, I plumped for replacing the horrendous old 50's gas boiler with a shiny new boiler and big water tank setup.. For me at the time, the economics, and the relative infancy, guinepig state of heat pumps, won out in my decision, mostly money tho of course, we didn't have the budget to fit unrderfloor heating (at the time the ideal for a heat pump system) and my crystal ball didn't see Russia/Unkraine and gas-price rises coming. This "hight temperature" version sounds like a good replacement for the gas boiler component, BUT what would become of my (yes 'bad' gas-burning) but virtually brand new (very good for what it is) boiler? Just thrown in the trash, or would it be re-purposed/recycled? Keen to invite comment/discussion here, but please be kind if you think I made a bad choice 🙂

[@lynnfisher4396]

We were in the exact same position as you four years ago and we did almost the identical thing, we replaced a combi with another combi ie no water tank for us. The main reason at the time for not getting a heat pump was that we could get no quotes from any one we felt comfortable with. Having been early adopters of pv, batteries and EV we often found ourselves knowing more than whoever came trying to sell whatever we were interested at the time. The same with heat pumps. Four years later it appears that there is more professional knowledge out there but videos like this one from a major company don’t help. We would like to exchange our combi next time for a heat pump but having spent the money we are now in no hurry, we will let others do the experimentation. There is a time for pragmatism over idealism and for us this is one.

[@brucekennedy5274]

@@lynnfisher4396 Thanks yes, similar situation indeed. Same with EV's - back in the day, I'd go into a dealership sometimes, and tell them all the stuff they didn't know about their own cars (I'm sure they loved that!) Like you, I'm in a wait and see position with my heating now. Good intentions, bad timing basically. Unless I discover a Govt incentive for a "free swap", and a promise my 'new' gas boiler is put to some good use in a second life, not thrown in the ground, its staying for a good many years now I expect. I can certainly see a heat pump in the distant future, but for now I'll have to be at peace with what we have.

[@Hassan_Mahmood_PK]

I think using Propane as a refrigerant (a highly inflammable material) is highly risky

[@patrickpointer8380]

Hi Imogen, a great episode. I would love to have a heat pump but i live in a flat. No outside space, on internal space for a hot water tank. I am an Octopus customer and i do find them a good suppler.

[@hhcollective]

Sometimes the average price is just nonsense. I've been quoted just under 3k for their cosy 6 system.

[@hellcat1988]

One of these days I'd love to see one of these companies figure out that a "boost mode" or some other type of rapid temperature change mode would be a major selling point feature for a lot of people. Sure, you might drop down to only 2 times more efficient, or even on parody with a gas boiler or traditional air conditioner temporarily, but a way to heat or cool a space rapidly, then switching back to normal operation, would get a lot more people interested in moving to heat pumps. I know that if for some reason my home dropped in temperature over a long period of time, say for a power outage, then took a long time to heat back up in the name of efficiency, all those energy savings would go right in the bin since I'd have to use space heaters or a traditional furnace to get the house back up to temperature.

[@simonclark4319]

My Daikin high temp heat pump can easily get a flow temp of 55 Celcius. If I wanted to it would be easy to set it to that and warm the rooms of my old house pretty quickly.

[@hellcat1988]

@@simonclark4319 Ok, but does the system know to increase the airflow throughout the house in conjunction with that increase, and to do it automatically, and then to return it to a normal operation mode, also automatically? That's what I'm getting at. Sure, you can go to your various controls and set everything to high, but I'm talking about a simple, one point, automated setting in the system. Something like "return from vacation" mode or "recover from power loss" mode that will quickly and automatically return the house to the temperature you normally desire, then switch back to normal operation without any further input on your end. I know it sounds simple enough to do it yourself, and most people who are already on the eco-bandwagon are going to do things like that already, but for the larger portion of the population, it's a deal breaker. Most people either don't know, or don't feel encouraged to do that sort of management themselves (think those rich snobs who complain if their neighbors gardener skips a week) and will want a system that will do everything for them. They won't upgrade to a heat pump if they have to do more than use a home ai assistant or a single button interface to do it.

[@rogerphelps9939]

That is how my Ecoforest ground source heat pump works. It takes a short break from space heating, bridged by the buffer tank, and then produces 60 deg plus hot water.

[@wobby1516]

Unfortunately at the moment Octopus are not installing their cosy 6. We’ve just had them install a heatpump for us and it was a Daikin heatpump, having said that it’s working really well.

[@PaulRansonArt]

On another tack, if the way to get us to go green then make ASHP and solar a joint installation. As only a small proportion of our electricity comes from renewables (solar / wind) the rest comes from fossil fuels. So how is ASHP better for the environment? I'm still on the fence!

[@bimble4715]

6-8 months to get an installation date currently and that was not the Cosy 6. So do I keep delaying my install or just accept a Daikin? Decisions.

[@Neilhuny]

I do like Octopus Energy! I am not (yet) a customer but everything seems to point to them being the best in the UK ... This Cosy 6 is very intriguing

[@SoullessAndSynthetic]

I’ve been looking for the right heat pump technology for over a year now…..this still isn’t it. Notice how the interview skipped over the questions of pipework and radiators….my home was built in 2002 and has microbore cable everywhere. Every heat pump survey I’ve had has said all the pipework and all the radiators needed to be upgraded, also my hot water cylinder needs to be replaced as it isn’t big enough for a 4 bedroom home. So the £500 figure suddenly turns into a £10,000 figure, especially if you want to hide all the replaced pipework and that means taking ceilings down, re plastering and redecorating the whole home…..But of course they will just stick a pump in without doing all that stuff and then the hone won’t be anything like as efficient….or warm. I’m getting the Heat Geeks in to do a proper survey….and waiting to see how Hybrid heat pumps develop before moving anywhere.

[@JTop79]

sorrywhatpardon? I was quoted 4k and that's before any upgrades - and INCLUDING the 7500 govt grant. Property has EPC rating of B, has insulation, double glazing, etc. So the £500 is really not possible. I want to see those £500 installations

[@keithbrown339]

Just to point out they are not installing cosy 6 yet . Last week there were no facts and figures for it at all. I was told it was still in the testing stage. Don't get me wrong, i want one i just want the bugs worked out at someone else's expense.

[@rogerphelps9939]

What does the 6 sand for? Is itt 6kw? If it is it will not cope with a 1970s 4 bedroom detached house.

[@TheBoothy666]

@@rogerphelps9939 Yup, 6kW, so you'd likely need to improve things like insulation first, depending on what yours is like of course. A hint of how good your exiting insulation is, is how long does your existing boiler (assuming gas?) run for (as in actively burning gas) on a very cold day/night in Winter, to keep the house at the set temp? i.e. If it's running constantly (like my ~140 year old end terrace I once lived in), then much more insulation needed! But if the boiler is off (as in not burning gas) for say half or more of the time and still keeps the set temp, then things might not be so bad.

[@jsptravels]

The output isn’t really the issue when it comes to suitability for older homes, rather the low flow temp of older heat pumps - as in, how hot could it make the water circulating through your radiators. The good news is the Cosy 6 (allegedly) has a flow temperature equivalent of a gas boiler (70°) which means it’s better suited for older homes and should mean fewer homes need things like bigger radiators.

[@evilutionltd]

Looks like a grit bin. We spent decades getting rid of hot water tanks and now they are coming back, smh. It concerns me when a talking point is "it's mainly women lead team". I really don't understand how that's important. I looked at an air or ground source heat pump last year but the larger radiators/more radiators, hot water tank and having to run sufficient power to the unit really put me off.

[@erwindewit4073]

Ahh, that's more what I'm looking for! Of course without vendor lock in, as I'm not in the UK and don't want to be stuck with one provider. Reasonable price, nice design (I agree, that's more like the thing I'd like to be outside my house) and higher temperature. Even though 35 degrees should work in my 1920's house, higher would help. I have about 6-7 years left on my gas heater, so this looks good! But the new salt heat storage is also really interesting. To be able to store heat in the summer to use through the colder periods would be fantastic.