Heat Pump - 1 Year Complete Running Costs (In Depth Edition)

[@vandit83]

6 months into my Ecodan and finding it very similar. Very cheap to run the more technology you have. Even when the battery runs out I stick the car on charge early and it gives me a longer slot. Literally never pay more than 7.5p leccy. It’s very satisfying on the bright cold days, heatpump kicks in and the solar is completely covering the heatpump. Mega smug moment! (Admittedly that’s not a daily occurrence but it’s pretty cool when it does happen. There’s loads of conspiracies about these too. I guy basically told me the out door units aren’t doing anything, it’s just for show and the immersion is doing g everything 😆🤦🏻‍♂️

[@smartelectriccar]

Heat pump saves us money and lowers our gas usage. Ontario Canada, cold climate and low gas and electricity costs. Works here!!

[@briangriffiths114]

My energy supplier, OVO Energy, has partnered with Heat Geeks to deliver ASHP installations in the near future. My gas boiler is 13 years old and looks brand new but can't last forever, therefore, I found this video more than helpful.

[@_Dougaldog]

And as part of that OVO will offer ' Heat Pump Plus ' tariff at 15p/kWh 24/7 through a separate meter.

[@cliveharrington1553]

Mine is 42 years this year, running well! awaiting Octopus survey ( quoted £2700 )

[@briangriffiths114]

@@_Dougaldog Excellent news, thank you.

[@briangriffiths114]

@@cliveharrington1553 That is impressive!

[@MarkGaudie]

Are you then getting the fixed 15p per kWh on your electricity? I’ve heard about OVO and Heat Geeks partnering. 👍

[@edwyncorteen1527]

I have now also nearly come to 12 months of heat pump use and have used for the whole house, hot water and charging two EVs, 3000kWh of net grid power, before starting our journey we used 3500kWh of electricity with no EVs to charge and 12,000 kWh of gas. So effectively our heating is "free" having installed 9kW of solar and a Powerwall. For my hot water I just set it to heat during the night, if it gets cool during the day this does not matter, we have no teenagers wanting a shower during the day!

[@AllenHart999]

One year already. Wow, time flies.

[@creakybones2407]

Great Impartial video as usual. I am in West Yorkshire So pretty much the same climate. I have a daikin 6Kw ashp and my Heat loss is 5.25KwPh. The rolling scop is 3.25. Baring in mind i work from home so heating is on pretty much constantly and i like a warm house (21c) My Figures are:- Total for HW & CH 3,451Kw (2023) Last year for Heating :- J 488kw, F 352Kw M 361Kw A 253Kw M 57Kw J 7Kw J 7Kw A 7Kw S 52Kw O 180Kw N 315Kw D 461Kw Total for heating 2,576Kw So not too far away from your stats. Was hoping for a SCOP of 3.5 but it is what it is. I Too run solar and 20kw of batteries and i think it is this trifecta that makes it really worth it. Without the batteries i think it would be expensive.

[@Lewis_Standing]

Could you achieve 4+ if you had larger radiators and a lower heat curve or flow temperature?

[@creakybones2407]

@@Lewis_Standing I could possibly get it higher if I ran the house at a lower temperature but I like to be warm. I have twin panel rads throughout so it is what it is.

[@Lewis_Standing]

@@creakybones2407 you misunderstand me. You can achieve the same home temperature, with the radiators cooler if they are longer or wider. Look up heat geek channel about the importance of low flow temperatures for achieving good efficiencies.

[@terryrigden4860]

Very interesting. We have just had our heat pump fitted and it's working very well for us. We took your advice and had a thorough heat loss survey and selected our installer carefully. Like you we use cheap night time electricity to heat water and boost the house. So far we are warmer with much lower costs

[@MarkGaudie]

We heat our 200 litre Vaillant cylinder to 48 degrees at night from 23:30 - 05:30 on octopus intelligent tariff. I agree with you on having multiple hot water inputs for the day. We have our home set to 21 degrees all day and set back to 20 at night. But I have been thinking of doing what you’ve done and overheat the house at night on the cheap 7.5p kWh rate. We have a 7kW Vaillant heat pump and the whole system cost us £8k after the grant of £5k. It made sense for us as we use solar and battery 24/7 and never really use any peak rate. The odd day the battery ran down by 20:00 at night but then the cheap rate and battery is charged up again at 23:30.

[@geofffullerton7495]

I agree. Vaillant, please let us have different hot water temperatures for different times of day 🙏.

[@kathrynmurray6506]

So tomorrow is the start of the ASHP installation (Octopus install), it is the final piece in our journey to changing the house to fully electric. In the last 12 months we have had a solar and battery system installed (7.4kWh south facing array, 2 x 9.5 kWh batteries, G2 5kWh hybrid inverter and an eddi). Following your journey has been super helpful, especially in demonstrating the potential savings. To be honest I am still nervous about this final step, mainly as we are doing this in the winter and therefore will need to wait a full year to fully capture and understand the data. I know that we are going to have to get use to consuming the fully battery storage each day until the weather improves and having to use some peak electricity. I have been in conversation with Octopus about the addition of the Eddi Sensor and relay board as I am keen to make use of solar energy (once the batteries have fully charged), there definitely appears to be a bit of a gap in knowledge on their part, but we shall see this week. If anyone has helpful pointed they would be appreciated. Great video by the way.

[@chriss4949]

Dont bother with solar-divert, just export it👍

[@JohnR31415]

With Octopus Intelligent… you can “encourage” some day time cheap rate and double dip the battery charge.

[@edc1569]

Who managed to sell you an Eddi? There's no point diverting solar into inefficient resistive water heater, that energy is worth more to the grid.

[@JohnR31415]

@@edc1569 it is now - it wasn’t always that way.

[@stephenabbott904]

great video looking forward to getting my heat pump fitted soon

[@crm114.]

Nice overview, thanks. We’ve had our 5kW Valliant ASHP for one and a half months. For this January, the app is reporting a COP of 5.4 which I’m finding hard to believe.

[@rbdogwood]

Like you I was surprised at the cost of servicing air source considering the lack of anything that actually needed doing. My other system is a ground source and doesn't seem to need servicing, or at least not yet. (13 years so far.)

[@richardcorns8553]

Love these videos. Had our Viessmann 150A installed end of October last year. Extremely pleased with it. UFH throughout so we run at a low flow temp on weather compensation. Running 24hrs a day and heat the 200ltr DHW twice a day to 46c. Combined scop 4.3. We have solar and 10kWh battery plus time of day tariff so very low running costs. Solar was already on the house when we bought it which was a bonus.

[@constructioneerful]

First morning waking up to my new heat pump. Warm - toasty warm really. The house was transformed with 10kW of solar, 20kWh of batteries and a heat pump all fitted within March. Biggest problem is Jackdaws wanting to nest under the solar panels. Get a heat pump peeps - and err bird guard for your solar!

[@bordersw1239]

Excellent breakdown, hit the nail on the head - lack of decent installers and servicing. Servicing seems expensive, my gas boiler is £70 per year and one large £150 service after 6 years. My main problem - house is piped with 10mm plastic pipe. The other problem - any gas guy can come and replace the boiler with like for like for about £1.8k. Good COP though!

[@rolandrohde]

I am still on my way to completing the first full year with my Vaillant setup. We had a pretty cold winter here in Germany as well, down to -13 at times, and it looks like I will end up with a total energy consumption of about 1500kWh in total if February and March aren't incredibly cold. Pretty decent I'd say. I don't use the data from the Vaillant app because it doesn't measure the consumption of the external pump that circulates water through the floor heating. I have a Shelly 3EM measuring the consumption instead and then add it all up in Home Assistant. We have a variable energy tariff (Tibber) which also help keep the cost down.

[@crosspeen1]

Great video as always. I am looking into getting a heat pump when in a couple of years when I replace my solar and get a battery, kinda do it all at once

[@garyallsopp6369]

The reduction in noise is a big plus for me. I stayed in a stable converted to a holiday cottage in windy West Wales in a cold November with an older heat pump, so I know they work, but Christ, it was noisy. Your new Vailant is night & day in terms of noise. Our gas boiler is only 6 years old so it doesn't make sense to change just yet.

[@Jaw0lf]

I watched someone talking about noisy ASHP's and it seems the problem is if it is not level . This is often caused by not being on solid ground and then the fan gets faulty and noisy.

[@garyallsopp6369]

@@Jaw0lf Could be; it was around six years ago though and it must have been a few years old then. It was a huge unit too; easily twice the size of EVM's

[@2036scott]

Here is my expenses for the house I rent for your comparison, not very well insulated and a god awful boiler. 2023 Electricity tariff: Standard Variable Tariff Paid by: Monthly Direct Debit Estimated annual usage: 4,042.52 kWh Estimated annual cost: £1,294.55 Gas tariff: Standard Variable Tariff Paid by: Monthly Direct Debit Estimated annual usage: 11,399.59 kWh Estimated annual cost: £905.15

[@Lewis_Standing]

Thank you for promoting these. So much misinformation and conspiracy theories about them it's depressing.

[@CastleKnight7]

Yeah, same with electric cars. So much misinformation around range, charging, battery safety, etc.

[@metalhead2550]

Great video cheers for the info! I have may missed this but i have two questions about your setup: Which vaillant arothem plus do you have 5 or 7kW? Also what flow temps are you running for your heating?

[@AndyJHiscock]

Thanks for clarifying, to see any financial savings over a gas boiler, a heat pump really needs to be supported with house batteries.

[@carltonlane8931]

Thankyou for the video.

[@AllenHart999]

What temp do you have your rooms. Thanks.

[@sie4431]

Yes, this is important because that has a big effect on energy use

[@ElectricVehicleMan]

Thermo is set at the same it always has been, 20.5c

[@AllenHart999]

@@ElectricVehicleMan are you using weather comp or internal reference. Thanks.

[@chriss4949]

Andy, you have used ~3000 kwh in 2023….what was a typical amount of gas used pa…pre ASHP?

[@ElectricVehicleMan]

See previous vid referred to in this one, I think it's in that.

[@richardofrugeley]

Thanks for your one year review. You mentioned efficiency for the year, but I'd like to know how efficiency varies month by month. My hp system is only 10 days old and the efficiency is barely keeping up with the removed gas boiler!

[@geoffreycoan]

Very interesting, particularly seeing the individual daily consumption figures. My LG ASHP unfortunately doesn’t have that kind of data available but I can now see my consumption in Home Assistant. Comparing some days yours to mine, my typical days are a touch higher but I have an older and probably larger house, but its on what must be the cold days (eg 25/26 November) where my consumption is 2-3 times yours, peaks on 40-60kWh for the day are not uncommon. Need to try to work out why and what changes to make to the weather compensation curve

[@bernardcharlesworth9860]

Quite amazing was expecting only 3x

[@i85_Heat_Pumps]

Excellent video, great information!

[@stefankuijer3490]

Defrosting the heat pump works great. It takes heated water from the tank to defrost itself. Really effective.

[@Jaw0lf]

This is very interesting as I have had my ASHP since February 2022. At that time our house had very poor cavity wall insulation and this was fixed in February 2023. During the first year it used 3,333kWh, according to our electric meter for the ASHP. My app for my Midea does not deal in decimal places and just seems to use round numbers. This last year has used about 2500kWh and most of my figures were very similar to yours from after my insulation. Usage of my ASHP{ was about 30% higher than years for Dec 22 and Jan 23. I see about a 30% difference with the insulation to without if anyone with poor insulation is looking at an ASHP. We have a 5 bed detached house fo info!

[@tarbat]

Yes, with an overall CoP of 3.8, and with electricity costing 4x more than gas, running costs on standard tariffs are going to be almost identical. That makes it hard to justify the capital costs of an ASHP. Unless the cost differential between electricity and gas reduces significantly to around 3x or less, households are going to be resistant to installing an ASHP.

[@ElectricVehicleMan]

Unless you have a battery storage and/or tariff.

[@tarbat]

@@ElectricVehicleMan Which themselves have high capital costs. I just think that for the great majority of UK housing stock, finding room for batteries, etc. is a major problem, so making ASHPs cost effective without battery storage is essential. That can only happen with cheaper electricity tariffs at the peak time of day that people need heating (daytime/evening).

[@ZicoTheMysticalWarrior]

​@@tarbat That's assuming the boiler has the efficiency that the manufactures laboratory tests claim. In reality when gas engineers slap in a boiler they usually give very little consideration to the efficiency of the system as a whole, I even had one tell me years ago he couldn't balance our system as it was single pipe couldn't be done, it wasn't and he could have, consequently we sometimes had to run the boiler temperatures quite high to get every room comfortable and after every service the engineers would always set the temperature to near the maximum. When we swapped our old boiler and heating system out for a heat pump I realised that the assumed 90% efficiency was more like 60% at best and speaking to friends and neighbours I suspect a lot of gas boiler systems are the same.

[@edc1569]

Price parity for a nation which until recently had endless north sea gas is pretty good, it only gets better from here on forward.

[@metalhead2550]

It's worth mentioning Octopus have a tariff specifically designed for heat pumps now (dropped rates in the early morning and early afternoon) so I'd expect more utility companies to also start offering something similar

[@08001967]

good work

[@MatthewSimpson2006]

Im a couple of months into my research for replacing our existing aging gas boiler. I am fortunate to have 15 solar panels on the roof, and just over 10KWH of battery storage. I do need to get a proper survey done to work out if my home is suitable. However, the biggest area of confusion for me currently is working out the logistics of where the heatpump and associated bits will actually go. Our existing heating system is a combi gas boiler thats in a cupboard in the kitchen. The house doesnt have a hot water tank currently. Looking at the size of the tower unit in your garage it does seem like Im going to have to think very carefully over where some of this could fit. The heat pump obviously goes oustide, but my question is how much space does the associated internal bits take up?

[@ElectricVehicleMan]

I’m have a tower that is like an ‘all in one’. You can get separate (therefore smaller) components to fit most places. Get heat calcs done and they can advise on that too.

[@DanceShowFilming]

I have very simualr to what you have. Heatpump works great, I just have it set to 16C though and its plenty warm enough, mind i do have three rads in front room LOL!

[@gohumberto]

I really like your videos (EVs mostly). They are perfect for finding out how this technology functions in absolutely, relentlessly, shite weather. Anyone watching channels like yours must, like me, feel the need to build a new house, incorporating all the latest technology and insulation. Tip. Get an electric Induction Hob. Even professional kitchens are moving to them now. They are almost as responsive as gas hobs (once you buy the correct pans).

[@gwydionball4114]

Fascinating, thank you. The temperature thing though - you could save more money and possibly improve your health, oh and err yeah have intersting family discussions [as I duck].... (May I recommend another fascinating listen, BBC Sounds Just One Thing 29 Nov 23)

[@dehn6581]

There have been some news reports and discussing going around of home insurance companies refusing to insure heat pumps or being a bit sly and not really being clear on the issue. It would be great to hear your experiences with insuring heat pumps and the other equipment you have.

[@ElectricVehicleMan]

What reports?

[@dehn6581]

​@@ElectricVehicleMan KZbin seems to delete links, but there have been news articles over the last year like The Telegraph's "Homeowners risk losing thousands with quarter of heat pumps not covered by insurance" and The Independent's "Heat pumps excluded from breakdown cover by leading home insurance providers", as some of the big insurance providers specifically exclude it, and they and some others cover them to a far less extent to the equivalent for a gas boiler.

[@danielknights1505]

I’m thinking of getting a heat pump and sunamp system

[@chrischild3667]

Same here. We've no room for a hot water tank. The sunamp can be filled during the off peak rates and, hopefully, allow for a smaller heatpump to cater for just the central heating. Starting the quote process on Monday.

[@danielknights1505]

@@chrischild3667 could you let me know the type of quotes you get and cost if it’s not to personal? I’m waiting to go to the everything electric show in may to have a look

[@chrischild3667]

@@danielknights1505 sure, will do 👍

[@chriss4949]

No £7500 grant if you go down Sunamp route

[@chrischild3667]

@@chriss4949 Oh interesting thanks, we're hoping to heat pump the central heating though, does it have to be a full system to qualify for the grant? I understand a sunamp can be heated by a heat pump, but it has to be a high temp heat pump.

[@mastweiler22]

Interesting, thanks. Have some engagement 😊

[@JohnR31415]

Further south that you, but that was also my highest gas usage day that winter: 118kWh (-4 average temp)

[@simonshering]

The single water temp annoys me as well. I'm using home assistant to change it on a schedule. I can't get my head around working out the actual usage cost and what is being charged during my off peak schedule and what is being charged at peak.

[@trailblazer7108]

Are you able to fully charge your batteries on the cheap Go rate? Is there enough time in the window?

[@ElectricVehicleMan]

@@trailblazer7108 Yep. And you can get more powerful inverters.

[@jonathanbrown8682]

Brilliant as ever Andy. I'm currently getting quotes to install similar in North Yorkshire. Can you recommend any supplier/installer. I like the look of vaillant, but similarly would like to control temperatures and time of day use. Thanks, Jonathan

[@ElectricVehicleMan]

Heatgeek map.

[@D230261]

Just had my solar panels and battery fitted and have now been looking at a heat pump install through British Gas...I see yours vaillant system but which model is it...I like the boiler unit you have in the garage compared with the traditional boiler exposed look...BG seem to offer Vaillant or Daiken...

[@_Dougaldog]

I think it depends partly on installation requirements as to whether Daikin or Vaillant with BG. One example might be that the Daikin monobloc unit uses R32 refrigerant and can be positioned under widows, or adjacent to doors on house exterior. On other hand the Vaillant arotherm plus 5k, 7k etc monoblocs uses R290 refrigerant, unit must be away from doors and windows (purely precautionary, but required). See what they suggest, and what their response is to what you might prefer. In my case they're doing a 6k Daiken Altherma monobloc HP, with a Mixergy 150 l HW cylinder (replaces old boiler unit in boiler cupboard, with ancillary volumiser, expansion tank, control panel maybe in adjacent airing cupboard, all new 22mm copper and new resized radiators.

[@ElectricVehicleMan]

I’d ask a heat geek personally over b gas.

[@D230261]

@@ElectricVehicleMan Not a lot of Heat Geeks kicking around the Glasgow area...I would also prefer company that Will be around for a while so the guarantee can be honoured...

[@_Dougaldog]

That was one of my primary concerns as well. Interestingly enough OVO are saying they will be teaming up with the Heat Geek franchise. Also OVO are offering a new tariff alongside that of 15p/kWh 24 hours a day (separate meter), but only to their own installations. I’m hoping they’ll extend that tariff to all at some point, or they will be haemorrhaging customers to Octopus. Do as much research yourself as you can so you have an idea of what to expect. Michael de Podesta does a good rule of thumb guide as to sizing Heat Pump, worth a watch.

[@D230261]

@@_Dougaldog My quote from BG after using the £7.5k grant is still nearly £10k...They won't even entertain fitting one unless I have completely new pipework fitted to replace the microbore stuff I have...If I still need to get the tech guy out for heat loss survey and radiator check but the initial survey said I would probably need all or most of my 13 radiators changed...So I suppose the £10k may not be to bad with all the work and parts required...But I also think its good that they won't just fit a system knowing that pipework is not correct...anyway...still thinking it over...

[@sie4431]

That's a lot less than my gas boiler uses and it's still pretty chilly in the house. I reckon I'd be looking at 80kwh of gas on a cold day being at home all day although gas should be cheaper per kwh then electricity

[@AlanWhite-d8m]

thats eddi thanks

[@missStargazer]

I moved ed into a property that has an Ecodan heat pump system. Its been a nightmare, the house is always cold! The radiators only get warm not hot, even when the room thermostat is at 20 or 21. Any advice woukd be appreciated.

[@ElectricVehicleMan]

What are you thermostat settings? Timings? Assuming the system has been setup correctly of course.

[@missStargazer]

@@ElectricVehicleMan The wall thermostat is at 21.5 just now. The flow temp is at 45c and the hot water is set at 52c. There has been a company out 5 times and each time they have all said different things and not sure what it is. The radiators have been flushed, they used a can of something to do this and they have also been bled. The problem I still have is the radiators are just warm not hot to touch? It's costing alot running the heating and the house is still not hot, it's very frustrating.

[@missStargazer]

@@ElectricVehicleMan I forgot to mention that the heating and water isn't on timed.

[@ElectricVehicleMan]

@@missStargazer What heat calculations have you been given for the house?

[@missStargazer]

@@ElectricVehicleMan There was no heat calculations given. All that was left at my house was the Mitsibushi heat pump booklet/manual. I did call the Mitsibushi technical line previously and they advised sludge may be the problem, that's when a company came back out to flush the radiators. Mitsibushi also walked me through the settings to turn off the weather comp and to use the temp flow as the radiators weren't heating properly to get the full benefit on the weather comp? I've been spending alot of time researching and trying to learn how to operate this heating system, but it's challenging to say the least.

[@andyhall5916]

Hi, I'm very interested in installing a heat pump and have started getting quotes. We currently have a gas boiler which we switch on when we need it, which is usually for 3-4 hours in the evening. Some times we dont even put it on, not because we are skinflints. Would we need to have the heat pump on constantly or can it be used on demand. Would this cost more than if it was on all day. I have a 9.5kw battery and octopus intelligent go and I'm hoping to add another 9.5kw battery if we did go ahead with the heat pump. We live in the southwest which is usually a few degrees warmer than Yorkshire. I would appreciate any thoughts.

[@eezawyrdo3052]

How much for heat pump servicing and frequency? I heard it was about £250 per year.

[@ElectricVehicleMan]

Take it you didn’t watch the whole thing? 13:00

[@ricardo-iw9sq]

How much power do you have coming into your house because my house and the ones in the street were built in the late 50s so I have been told if I was to have a 7.5kw charger and a ashp there wouldn't be enough power, to try an put extra insulation is impossible and I have no room to put the extra water tanks and if I did the amount of investment would never pay off.

[@metalhead2550]

Ask your DNO to up your property fuse to 100A and I was told by my DNO that the government are paying for all grid upgrades required for the headroom to be there if you do need a beefier supply

[@pensansproductions3278]

Ashp with a smart meter and enough battery's to last the day really make it worth while if you get cheap night rate electricity. Without cheap rate electric and enough battery capacity to last the day it's expensive in the winter.

[@edc1569]

with a CoP of 3.8 doesn't seem expensive when looking at the cost of peak rate gas vs electricity.

[@geoffreycoan]

Disagree. We have an ASHP and battery but the heat pump uses way more than our battery capacity. Our average unit rate (Octopus Agile) is 18p/kWh. The winter is expensive but summer very cheap; overall it costs about the same as the oil heating system it replaced

[@pensansproductions3278]

​@geoffreycoan I need 20kw of battery's to see me through the coldest winter period but above 5°c I'm 40% in reserve and at 10°c I'm at 70 to 80% in reserve if I don't use the tumble dryer and washing machine

[@jimsouthlondon7061]

EVM Kirbo are going on Dragons Den 15th Feb 8PM BBC 1 ,after I told them to and to get a patent number .

[@robjones8950]

I’m guessing that weather compensation doesn’t suit your life/work style. Have you experimented with it? Much less cycling and wear and tear on the pump

[@ElectricVehicleMan]

We use that.

[@robjones8950]

Sorry, I thought you said you set the thermostat to 20.5° just like your old boiler. WC heat curve is led by external temperature

[@ElectricVehicleMan]

@@robjones8950 The internal thermostat is set to 20.5c (room temp we ask for) and the HP figures out the best temp for the flow rate using weather compensation.

[@Burtis89]

Wish my midea heat pump had all that easy to access fancy data be so much easier to see what its up to

[@cattywampus5555]

EVM what sort of life expectancy are you hoping for on the heat pump?

[@ElectricVehicleMan]

15 years, warranty is 7.

[@stefankuijer3490]

The hot water electricity consumption shows the same thing as the heating. Using more in the colder months. This is just because the heat pump has to work harder in colder temperatures.

[@ronnietutton4212]

Thats makes my figues for my night storage and electric heaters they are a horror. Easily more kw and i cant get the hpuse higher than 14 in the coldest.

[@christ6968]

Seems hot water tanks are back in vogue after the combi boiler era Trouble is where the heck could you fit one unless you had a garage or utility room? Or space is at a premium

[@gathonar]

Totally agree 👍

[@chrischild3667]

Agreed. I'm looking at the sunamp heat battery for the hot water and heat pump for central heating. Not as efficient of course, but the hot water sunamp can be charged on the cheap electricity tariff (7.5p currently) so same-ish as gas.

[@ElectricVehicleMan]

Where did they go when they were in vogue the first time around?

[@chrischild3667]

@@ElectricVehicleMan mine was in the loft, which has since been converted into a bedroom. Yep, lack of foresight back when I wasn't as green fingered. Suspect its the case for many others who, when having a combi fitted or moving into a property with a combi & redundant tank, they use the space for something else.

[@christ6968]

@@ElectricVehicleMan in a space designed for them (the hot water cylinder) . Most houses have long since got rid of that space and repurposed it. Do new houses have provision for such a system? Which further demonstrates my point. Where the heck do you fit all that kit if you don't have a garage or utility room.

[@andycotton162]

Thermostat at 20.5 degrees! My wife would be leaving me if I set that!

[@alanrickett2537]

19 here cold house warm bed my wife seems 😊

[@zaferroni]

How many sq feet is your house ?

[@danielfisher-gh8el]

Maybe this is petty but you need to sort that ring camera cable out 😅

[@Tezza66]

Convert ya gas to lpg.. save the standing charge

[@Ashes3123]

What's the point of heating downstairs when nobody is there? Crazyness.

[@ElectricVehicleMan]

Cheaper to maintain heat at a trickle than turn it off and then stick a huge amount in to heat it back up again.

[@Ashes3123]

@@ElectricVehicleMan Even hypotheticallly, given your insulation, this doesn't seem right. Turning it on even for the last half of an hour/hour off peak at night would be better than the whole night for example.

[@ElectricVehicleMan]

@@Ashes3123 It’s not ‘on’ all night. It only comes on if the thermostat calls for heat for the house.

[@Ashes3123]

​@@ElectricVehicleManyes, that's standard, given the context of your smart system. Still, I bow to your knowledge of your house thermals.

[@st4849]

How fast does this heat up the radiators from cold please? (compared to.a gas boiler)

[@JohnR31415]

Slightly slower, but it’s not about heating a radiator from “cold”, it’s about maintaining temperature in the house, and a continuous low level input is more comfortable than a rapid heating/cooling cycle.

[@st4849]

@@JohnR31415 Thank you. I thought that'd be the case. We're in an A2 house thankfully, but I'm a great believer in exchanging the air in the house fully every day. I keep windows open for a few hours a day therefore and the house cools down to say 19'C (from 22'C). So the walls do keep the heat pretty well. ...but then towards the evening we start to feel the chill, so we close the windows and start heating a bit. In this situation we'd like to heat up the radiators as fast as possible. Our gas boiler does it pretty fast. Not sure how much longer would it take with a heat pump.

[@PurpleAlienPlanet]

​@@st4849 No HRV installed or possible?

[@st4849]

@@PurpleAlienPlanet We have DCV which does handle air exchange when it senses it's necessary. I still prefer my good old fashioned opening the windows method though....as these systems can sense humidity/air quality, but can't sense viruses/etc.. It's just healthy to open the windows and let it all out.

[@JohnR31415]

@@st4849 why would it need it to be fast? - you need x heat by 7pm… so put x heat it before 7pm. There is no reason to ever let it get cold enough that you feel the need for “fast” heating.

[@OraEtLabora0]

7:06 over month old vid? 🤔 i better join for £1/m then...

[@ElectricVehicleMan]

Most are. Don’t film something and post it up within a few days.

[@_Dougaldog]

One question often seen is the 'what's the payback time, or Return On Investment ?'. What's never mentioned is the value that a modern, clean, efficient, cheap to run and maintain heating system adds to your house. In many cases as much as the outlay.

[@dwftube]

You still have baths?

[@ElectricVehicleMan]

One has a bath in it. Civilised. 👌

[@PeterLawrence-x6u]

Sorry, but how has got £17.500 pounds spare to spend, if a lot of people got all the items you have shown, they would need to get a lone, and now the banks are charging at least 5% which you have not taken in consideration on your savings. 😊

[@ElectricVehicleMan]

As said in the video, this took us years to do. I bet people spend more on 8/9 years holidays.

[@jablot5054]

Most people spend that on cars.

[@AlanWhite-d8m]

hi do y

[@neilbridgeman7768]

Surprised you have not got it on pure weather compensation. That is a disappointing COP. There must be more efficiency to get out of it. Stop overheating the hot water would be a start. Just paying to add cold water to it to get back down to a reasonable temperature. Mine is set to 40° and is plenty for three adults. I would turn to pure weather compensation and turn your room stats to 23° and keep turning your flow temperature down until you get a constant 20° in the house. Stop turning your stats down at night. HPs are there most efficient when maintaining a nice constant temperature. When you wake in the morning your HP works harder to get back up to temperature and costs efficiency.

[@edc1569]

Is it disappointing? It's a retrofit with pretty standard sized radiators and no underfloor. Lots of people want a cooler room at night, at some point comfort matters more.

[@neilbridgeman7768]

@@edc1569 agreed, but the end of the video was about efficiency.

[@BenIsInSweden]

@@neilbridgeman7768 Getting the best COP isn't always getting the cheapest cost. Like he says, he gets a cheaper overnight tarrif, so heating his cylinder to a hotter temperature during the cheap rate gets him cheaper hot water at the expense of COP.

[@neilbridgeman7768]

@@BenIsInSweden yeah that was total nonsense. Unnecessarily over heating a water tank will always cost more unless you get paid to use electricity which does happen on a variable tariff sometimes but he is not on one so overheating a water tank will always cost more, without exception.

[@_Dougaldog]

@@neilbridgeman7768 But the losses from the cylinder are minimal, a handy heat store for excess cheap electricity or solar PV.

[@edc1569]

How much does big Heat Pump pay you to make these videos, I'm never giving up my coal boiler, nothing wrong with coal, just a little bit of black lung.

[@EgoShredder]

My impression is heat pumps work when all the operating conditions are favourable to it. I'm not convinced by the economics of it either, the combined total cost over a period of time.

[@glideman]

No way this is cheaper than a gas boiler, if you include all the stuff you have installed plus the extra unreliable electrical equipment and all the space it takes up it’s just not worth it. It’s also going to be obsolete in a few years. The fan makes a right racket to which makes the garden unusable. If you compare it to a fridge freezer they only last about 5 years and they are far simpler. I’ll be very surprised if that lot lasts 5 years without going wrong.

[@_Dougaldog]

I think you just won the booby prize.... Heat pumps have good warranties, usually minimum five years, and typical life expectancy of over twenty years. One national firm is touting free installation for some (after £7.5k grant), and around £3k for others. There is less complexity in the system than a combination boiler, and newer designs not particularly noisy. They have been in use in rest of world for sixty years (first developed 150 year ago), my current fridge freezer is 21 years old.... However fossil boilers will be obsolete in new build houses in Scotland by April 2024 and England/Wales April 2025.

[@glideman]

@@_Dougaldog a 5 year warranty is not enough, it won’t pay for itself in 5 years and they are way more complex than a gas boiler.

[@_Dougaldog]

@@glideman My one will 'pay for itself' immediately, Old broken gas boiler and complete 40 year old system completely replaced for under £4k, a bargain. Monoblock unit outside feeds radiators, or simple valve switches to heat exchanger in HW cylinder. That's not complicated. No chance of gas leaks, fires & explosions, CO poisoning etc And much cheaper than gas with reduced electricity prices, and no gas standing charge. Will save 2 Tonnes of CO2 & other poisons each year that fossil fuel boilers emit when burning. What's not to like ? You hang onto that prize, you deserve it...

[@ElectricVehicleMan]

The warranty on mine is 7 years. (Same as a gas boiler) They're not more complex at all. Essentially a few pipes. And again, end of warranty date isn't when they need replacing. Do you replace your TV after it's a year old? Lifespan is at least that of a gas boiler.

[@glideman]

@@ElectricVehicleMan did it cost the same as a gas boiler? A good gas boiler costs about £850-£1000 if a heat pump costs £2000 than the warranty should be twice as long to cover the extra costs. Just from an economic perspective. I don’t think you’re saving any money.

[@edc1569]

What would you do after a nuclear war? Heat pumps aren't EMP hardened! So foolish! I'm sticking with my paraffin burners and gas lamps.

[@_Dougaldog]

Humanoids are not EMP hardened, rock on Mad Max...

[@bordersw1239]

Don’t forget your horse.

[@TimJW]

Nor are gas or oil boilers

[@Bb5y]

Erm… to name the sarcasm is to miss the sarcasm…? 🙃

[@Dmaelstrom]

We’ll come over to yours then.

[@waynekerrr9027]

This fool trying to convince himself hes getting a bargain, but in reality hes being ripped off ..

[@ElectricVehicleMan]

And yet here’s the actual evidence. Of which you have none!

[@EgoShredder]

Regards the conspiracy theory thing: The use of heat pumps is a personal choice at the moment, and not a conspiracy on that we agree. However it can not be denied that those in power are pushing to end the use of traditional forms of energy and heating systems in the home. We already know they plan to ban gas boilers from 2025 in new builds, and slowly phased out for others thereafter, because they have officially told us so. Therefore people are being pushed in the direction of heating solutions like heat pumps, whether they want them or not. Same goes for fuel based cars being banned from production around 2030 (yes that date again...), again forcing people down the route of alternative forms of transport, or more likely... no form of transport unless its public or walking/cycling. So the conspiracy theory dig does not hold much water, when they keep becoming fact with each passing year. We need some new conspiracy theories, asmost of the old ones have all come true!

[@ElectricVehicleMan]

The EV date is 2035.

[@EgoShredder]

@@ElectricVehicleMan Yeah I imagine that would follow on after the old fuel car stipulations etc.

[@humphreybradley3060]

To be fair, the sale of the sale of new ICE vehicles is just that, NEW cars! You will still be able to buy used cars for many, many years

[@Yorkshireasaurus]

We live in a democracy. If you’re not happy vote for different MP’s and convince others to follow suit. There are many policies that are instigated by the government of the day that I’m not happy with but I accept them because that’s just the way it is?

[@EgoShredder]

@@Yorkshireasaurus Democracy is not what people think it is. It basically does nothing of any importance for the general population, and was designed that way from day one. If it did they would never have allowed it in the first place. This is a huge topic for another day, away from KZbin.

[@ecybernard-com]

How many BTU is the unit and how many square feet are you heating?