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Air to air or air to water?
OK I realise this is a pretty open ended question but what are people's thoughts on air to air heat pumps (basically split air conditioners) v air to water? I've recently installed a home battery and switched to Octopus Go, so the large majority of our electricity consumption is at 8.5p/kWh, averaging about 10p/kWh. Our…
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Heat Pump in 1920s 4 bed detached with coal dust cement - trusted installer?
I would love a Heat Pump (HP). But because of coal dust cement my Octopus SM2s don't communicate with Octopus - (Cardiff O2 comms). I have cavity wall insulation, large often 2 sided radiators and good roof insulation. But I am wary..... I would go with Octopus but suspect they would not contemplate my house (don't do…
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Can Heat Pumps Be Turned Off in Summer?
With our gas boiler, we turn the heating off around April time and it doesn't come back on until October-ish - obviously depending on temperatures. How does this work with a heat pump and hot water?
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Heat meter - Fun & games
Been thinking about fitting a heat meter for a while so that I can get an accurate picture of just how much energy is pumped in to the central heating system here. With hard data in front of me, it will be much easier to select a suitably rated heat pump when the time comes without any guess work. Having looked at the…
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Daiken ASHP hot water
I find my hot water tank heats quicker than I need it to and is averaging a COP of just less than two (although admittedly this will include the weekly legionella cycle which after much research I decided to keep). This suggests to me that that the ASHP is running hotter than I need it to for hot water. Is there a way to…
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Heat Geeks
I'd seen many of the Heat Geeks videos and got taken in by the hype. Despite having 8mm microbore I'd seen the videos which indicated this isn't a deal breaker so I paid £375 for an assessment.The engineer arrived and verbally told me this would be a straight forward installation. The house has a heat loss estimate of 5kW…
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Air to air heat pump?
Hello everyone. I’m in the process of renovating a 1950s 3 bed semi, and my priorities are insulation and heating. The current heating system is old storage heaters, and immersion for hot water. I’ve been researching different heating systems for a while now, and would appreciate any input to help in my decision. I’ve…
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Bad ASHP Install on New Build - Legal Stand Point?
My wife and I bought a new property in January this year (2024) which was sold as a heat efficient modern new build that would be low on bills due to the air source heat pump installed. We started seeing our electric usage look rather high and after a lot of investigation, and cost to have reports done of the heat pump, it…
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Air-to-air multi split heat pump - bungalow without boiler/radiators
Our bungalow is (was) heated by a gas warm air heater (no radiators, instead there's ducting underneath the floor and vents in the floorboards, where the warm air is coming from). This heater has finally packed up - I tried to use it in the recent cold spell and it couldn't get going and flashed a red light. It may need a…
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Homely heat pump controller
I saw a Heat Geeks video interview with the founder of Homely and was interested to note that Samsung is one of the brands it is designed to work with. Having looked at the Samsung installation manual, prior to an ECO4 installation, I got the distinct impression that the inbuilt controls are pretty rudimentary and I might…
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Best way to use
I have just had a new Samsung heat pump installed, looking for advice on the most efficient way to use it? We have a 4 bed house, we are out at work all day and like a cool house while sleeping. I was going to put it on auto mode and set timers but read this is an expensive way to use it? Any advice on best settings to use…
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Not warm enough! Is it wind?
I have a Samsung AE120RXYDEG air source heat pump, with underfloor heating controlled by a Heatmiser system. House is well insulated. Generally the heating, per Heatmiser app, runs for a few hours each morning and keeps the downstairs rooms at 21C. Today the heating has been running all day in all rooms, and rarely gets…
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OCTOPUS users only please....Heat up Eficiency
Please please please only comment if you actually use an octopus Daikin heat pump with MMI , onecta app and room thermostat provided... PLEASE... I've posted elsewhere and get different views, inconsistent, and confused because it's not my system and not relevant or speculation because they don't know my system. so.. does…
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ASHP Short Cycling
This is my first season with a ASHP and wet underfloor heating system. In the last months I have struggled to solve the short cycling of the heat pump (HP). Initially it was thought that because the bungalow was well insulated (modern new build) and it was mild, and it was just the mild weather conditions causing the…
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Daikin Altherma Heat Pump - can you determine whether/how much it is heating radiators or tank?
Hi, We had a Daikin Altherma 3 M (EDLA06E2V3) Air Source heat pump system installed by Octopus in Spetember. (In case it's interesting, we're in Leeds, and we paid £1500 after the grant, which included removing the gas boiler and replacing 3 radiators). In general, we are extremely pleased with it. Our house is now warm…
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Mitshubishi EcoDan Heating setting won't save after making changes.
Hi All, We had a mitsubishi EcoDan Heat Pump for the last year, Installed November 2023, in our rented house. Everything has been working fine untill we had a power cut last month. The heat pump wouldn’t turn on and we didn’t know what to do. Our landlord was informed, they came out to the heat pump and did a system reset.…
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Slope weather curve and questions
Octopus installed my Daikin EDLA04E2V3 4kw air heat pump in April 2024.. I live in a 1940 bungalow , 98m2 floor space, 2 beds, lounge, bathroom, open plan kitchen diner extension. They replaced all rads to correct sizes and spec as designed. Heating schedule is 19C between 6am and 9om , 17C all other times, every day. All…
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Seeking advice on disappointing heat pump experience
Looking for some advice please on getting best out of green energy tech. Have recently installed Vaillant aroTherm 7kw (new larger rads). 4kw solar panels and 5.12kw battery. I am not seeing any reduction in costs over the 15 yr/o electric boiler it replaced. House is 25 y/o 2-bed detached bungalow in central Scotland with…
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Danfoss Air Source Heat Pump not heating water or house
We have a Danfoss DHP-AQ Maxi air source heat pump that has stopped working nearly 3 weeks ago. It doesn't provide heat for the house or hot water but there are no error messages. The symbol for the water tank just shows as permanently filling but doesn't heat. The outside unit isn't running either. Inside the unit on a…
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Heat Pump v Electric Radiators
Hello Has anyone seen an independent comparison of the cost of 1) Installing a heat pump, typical pipework amendments, extra loft insulation, running costs versus 2) Purchasing portable electric heaters ( say https://www.toolstation.com/2kw-convector-heater/p77317?) and suffering higher electricity bills over say a 20 year…
