My social landlord installed the Mitsubishi Ecodan system in March 2011. Since then, every part has failed, leaked, and been replaced 3-5 times, including outside pump unit x 4, tanks, pipes, compressors, radiators, motherboards, and the wireless control panel. The last replacement took 13 days, during which we had no heat while my husband was in palliative care. He was admitted to the hospital and caught COVID; on top of 4 different cancers (Brain, Lung, Blood and Skin) he passed away by mid-April 2023 after 13 years fight. My electric bill for a two-bedroom bungalow, where I live as a disabled widow, has exceeded £4,000 in last 12months. Since the landlord’s contractors locked me out of any adjustments except for heating on the wireless control panel, both options for scheduling and adjusting the heat or water are unavailable (grayed out). Even the holiday mode won’t allow any input. The hot water is set to run all day, recycling at 48°C. I used to heat the water once daily during off-peak hours and use emergency heat if needed. I have a power shower and mainly use hot water for washing up. I have to boil water to wash up properly. My home is equipped with smart devices that turn lights, security cameras, appliances, and other equipment on and off as I move from room to room to stay safe and well. The average temperature inside my home is 15°C from October to May. The house, built in 1954, contains asbestos. Despite this, my landlord flatly refuses to allow the addition of any modular components to my smart home. They have even threatened me and my late husband with future service or repair costs if I were to install a MelCloud device-an authorized Mitsubishi component that is software-based and manufactured specifically for the Mitsubishi Ecodan air pump heating system. This device is used in thousands of homes worldwide. Being able to control and schedule my heating would significantly reduce waste and make my heating more affordable. However, the landlord claims that installing the MelCloud would damage the system/hardware. Can anyone explain the technical basis for this assumption in detail?

Yes, it's not a "noise" but a vibration. I got people upstairs who have one and it is driving me crazy.

I belive one of those SensoComforts can run more then 1 zones, why would you need a whole another unit?

But where do you connect it to?

Thanks mate.... that was driving me nuts.

I have unit stable light every 1sec net light and every 5sec err light... Not working with the app

I really don't think you need to worry about birds nesting under solar panels. We've have three lots of panels on two different houses in Cambridge since 2010 and no bird has ever come near them. Just an unnecessary additional expense.

They look hideous

BS ...what smart hot water cylinder. Idiotic terminology by ignorant people. Instead of burning gas now you will be burning electricity and gas in power stations to produce ot.So its just chasing hour own tail round and round.

Great video, thanks. I have had this system for several months but had no hand-over and no set-up assistance so the wi-fi element has been redundant. At last I feel in control!

What a dreadful noise, I can't tell if he's being sarcastic or not...

Please can you help me understand something. You can fit approx 10 microinverters in to one 20A fuse. Is it possible to have another 2x 20A fuses being fed by by another 2 strings of 10 IQ8s please. I’m wanting to install 30 panels over 2 SE roof with a shading factor of 0.78, so whilst panels are cheap I thought it made sense to overcompensate with panels as my per panel output would be low. It’s feeding 2 5P (possibly 3) batteries if that’s important. My potential installer is telling me that 20 panels is the maximum I can have, I’m struggling to accept they are correct. Thanks.

How do you replace the inverter in the top middle panel when it fails?

What do you do to prevent birds and other critters getting under the panels for shelter nesting etc?

Get your guys the correct termination tools!? Eg correct cable stripper, depth guide for mc4 and torque socket for MC4 and for the panel clamps. And SWA is not double insulated internally. Use correct dc SWA or correct dc cable! No wonder why I loose jobs on price FFS

Would be good to hear it without you talking. I can still hear it when you are talking but good to have both as most of the time no one will be talking next to the heat pump !

Great video. Thanks for the instructions!

Hi had a lightning storm lastnight, this morning have no power to Mitsubishi control panel everything else has power any help b much appreciated thanks les

I've watched many videos on KZbin showing solar system installs using Enphase equipment and NOBODY shows the commissioning/startup process. There must be some reason, either the process is restricted by Enphase or the installers are protecting their market in some way. Of course, this means that all maintenance going forward will be closed to any but those installers. If that business fails, so does your system. Not acceptable.

Beautiful install mate and the video is very informative. Just done my first electrical install of one of these and while it’s more unnecessarily complicated than it needs to be with the volt free inputs into the wiring centre it’s a great bit of kit when it gets up and running. I know you were using the Vaillant controllers there for the radiator zone but if you had to use a third party controller how do you get around the need to have a volt free signal coming from the room stat?

how do you turn on the radiators to heat the house

I think that the grid is a cashflow investment and lost grid customer demand will make higher $kWh for all remaining grid electricity users. Cashflow on the grid investment value is important to the grid owners. This is a massive problem for the grid when the SUN SHINES. No grid electricity is needed. CASHFLOW DEATH. 😮😮 When the home battery is full and feeding home demand, grid CASHFLOW DEATH.😮😮 When the wind blows grid owners get electricity to sell to customers. Grid Electricity will be an imploding business and nuclear electricity makes it even worse.😮😮 In Australia fossil fueled generators are sucking in governments tax payers money. Nuclear promoters want government money to build nuclear electricity generators. Nuclear promoters want government disaster insurance. Nuclear promoters will then want private investors but government guaranteed CASH FLOWS. WTF. The distant wind turbines will need the grid to supply the millions of customers still demandng supply. I bet the fossil fueled generators are even running at a loss for tax purposes 🙄 😮😮 So PV rooftop return on investment is not taxed and will increase in value as grid electricity supply $kWh prices must increase. Remember in a warming latitudes heating costs will crash. Petroleum for emergency winter weeks heating will be nothing. Petroleum for petrochemical industry and road building and maintenance will remain as usual. 20years to replace all ICE vehicles. (Internal combustion engines)

I'm wondering what would happen if a gas meter located near breakers had some gas leakage and the breakers were switched on at the same time.

Is there any chance you could tell me what size supply cable was needed for the unit please?

Does a smart meter have to be installed for these?

Horrendous. Imagine a whole estate full of these things. As if modern traffic noise wasn't enough. This ruins people's health.

At night is to disturbing

Hi bill do you leave your emersion on all the time because so far I'm not thrilled with it as radiators coming on when it feels like it.

Does anyone know its the GSI system or something similar is available in the states?

Would you choose Vaillant or Mitsubishi ?

As you probably know melcloud has been down there for about a week. Ive tried numerous times to reconnect using the WPS way and also using the SDDI & KEY method to no avail. Only think i can see different is at the start my unit light is on constantly and not flashing. Cant see any other reason why its not connecting. Ive followed both ways and nothing. Any help or tips please ? Many thanks

To me it is not noisy at all. What model is that and what is the published sound level in dBA?

Very helpful - we have 4 panels with IQ7As at the moment with the Tesla 2 battery and gateway. We’re thinking of adding more panels but on an outbuilding. Is it as simple as wiring these into a circuit and the system will pick them up? Or do they need to be programmed to the gateway to make them work?

Just for my own curiosity, why the mid clamp are not on the longside (15-20% from edges) and are mounted on the short side. I have yet to see a panel manufacturer to indicate this time of mounting. It can be done but with a pannel with no more than 1.8m lenght.

That consistent “hum” I could hear when you were talking would drive me nuts - my neighbour is having one fitted this week - and honestly I’m dreading it - it will be like someone running a bloody lawn mower 24/7 and if at night if I want our bedroom window open it’s going to be awful - they should be bloody banned - horrible bloody things - and it’s within a metre of our border with him - he didn’t even tell us he was having one fitted - bloody awful - going to ruin the peace in our garden

We moved in to our converted barn 9 years ago (bought from a previous owner who didn't really live in it). It has an ECODAN ASHP for underfloor heating and hot water. It is expensive to run and gives nothing back. I have turned off the heating and replaced it with 3 Everett stoves, which are really good. Although the hot water is set to 24hrs it is always cold, so we have to repeatedly use the boost button (up to 3 times) to heat water for washing up etc. I have really struggled to find anyone to offer a service, the original installers have gone. I have recently contacted a company I saw on a recommendation of our local face book page who wants £400 plus vat and extra if the glycol needs topping up. Luckily I have a gas Aga (aims programmable) which help to heat the property; gas central heating would be preferable but with the cost to convert and net zero agenda this is not a possibility. I am so frustrated!!

What the hell use is a solar system to the customer if it shuts down for SAFETY when the mains is lost???? How do you tell him is completely devoid of electricity and his freezer thaw out the fridge dies and they will be sitting in the dark without anything to do. Why can the solar system and any battery not keep the house live because of the god safety? Is it because the feedback to the mains in not possible because a switch over device cannot know when the mains goes off as there is still 230 volts available to it. The policy of solar appears to be the advantage of the power companies financial position. Surely there has to be some sort of standby power available to keep it all going , I had a power down for a week because of a u found wet fault in the mains several times in the passed year until they replaced the whole cable system along the road.

No smoke alarm was fitted in my Attic I fitted one myself and linked it to others in the bungalow. The so-called electrician had very little knowledge of how to wire the system up. The installers were called back several times because the inverter and battery system were installed incorrectly and only half the battery storage was fitted or delivered. The MCS certificate was issued but I complained to the two associations about the workmanship, both did not help because the company although using the logos on the website and correspondence had failed to pay the membership fee for the year. The Ikano Bank was of little use when I informed them not to pay the company until the work was sorted they paid them despite being told all the system had not been delivered ie breach of contract. Saint Solar I believe is now out of Business. I have nearly paid the loan back to the Ikano Bank. So despite looking for a recognised company belonging to the correct associations and MCS-trained you still can only believe word of mouth from satisfied genuine customers.

For the flat roof does there have to be ply immediately under the surface or can the racking system sit on felt thats layed ontop of rigid insulation?

I have an installer looking to specify Mitsubishi , he notes Vaillant customer support is poor and that he says their controls were variations off their gas boilers . The Mitsubishi though were the result of their experiences in the air to air market . I still can not decide which manufacturer to go with .

Why do you need two? Do you need one for hot and cold? Or just purely just to manaage expectations for taps and bathrooms

Are these racks much more costly than renusol tubs?

Do enphase microinverters hum underneath panel like a string inverter would?

With the multiple zones, multiple underfloor zones, buffer and secondary pumps I would think 3.65 as a SCOP is high. Ideally remove the buffer, remove the two secondary pumps remove the actuators on the underfloor heating as well as the mixer valve on the underfloor manifold. install flow gauges next to the zone valves and do the calcs depending on the max flow rate requirement of each zone. the system needs minimum 55l of water so you could use the buffer as a accumulator on the return if the underfloor is too small as a single zone. Its a great install nut I do think the Valliant design assumes the installer doesn't understand hydronics.

Excellent

I have 62 homes being built next to me, all 60 will have heat pumps, will I likely notice them ? I am 30 metres away from the nearest new home being built. I am concerned as I live in a quiet village and this is 60+ homes who will have them. I think the builders were forced to install them due to the government.

I do not understand why one would do this? Have you guys ever installed solar before?

Clear as mud. The instructions do not show much on this video. Far better to write a,set of clear instructions. This does not work on my system

I would have been tempted to install it as east west facing aray any and get a longer generation period with less of a mid day peak. Was this an option?

I had discounted the Mixergy as I had been told that when connected to an ASHP it reverted to being a standard emersion heater and you didn't get the benefit of choosing how much water you needed. For the most part I will be a single person living in a 4 bed 2 bath house so would want the capacity when people came to stay but on a day to day basis would probably only need 50% of the tank if not less. I will also have Solar PV, Harvi and eddie and a Give Energy all in one battery. Can you confirm the Mixergy tank would still work as required with my setup?