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Heat pumps

A place to get help with air source and ground source heat pumps, sharing experiences with other MoneySavers.

Old ASHP cycling - lack of modulation?
IAS a temp fix for our failed gas boiler I have added a second hand ashp into the rad circuit. Seems to work fine except that it cycles rather than modulating down. It has a rated output of 13kw and draws about 4kw. I know from our modulating boiler and smart meter that at current temps we would use about 3-4kw of heat…
ASHP service do you bother and if you do how much do you get charged?
So our Ecodan can with a service manual and for the last couple of years we have done the regular maintenance and kept an eye on performance and pressures etc. Before Christmas next doors had theirs serviced and the guy was there for four hours they passed on his number and yep at ours for four hours checking everything…
Multi split heat pump
We recently moved in to a 1930s semi. We have an old boiler with an immersion tank that is expensive to run, and rooms are often still quite cold. Local gas engineers have advised replacing it with an efficient combi boiler and said we’d also need new radiators as ours likely couldn’t cope with a pressurised system.…
Ecodan
Relatively new to this system as we just moved into a new build, seems our water is heated by immersion, as we have no mains gas supply, our ecodan has underfloor heating and 2 rads upstairs, all controlled by individual room controllers, but its the settings that are confusing, do you have it on flow/curve or room ? what…
Underfloor cooling with ASHP?
As part of a renovation, we're going to be installing UFH with an ASHP. We're also considering air conditioning for the bedrooms, but I'm wondering about using a reversable ASHP for cooling instead. I mentioned this to some of the ASHP people we've been getting quotes from, and their comments have basically been that it…
Completely new to heat pumps
Hi everyone I am completely new to all of this - but we are looking to purchase a property that already has central heating via an air source heat pump. I know absolutely nothing about how this sort of system works and how it could compare in cost to what we have now. Currently we have multi fuel heating, with all of our…
The UK’s most popular home heat pump brand
https://renewableheatinghub.co.uk/the-most-popular-heat-pump-in-the-uk-is-it-in-your-home
ASHP yearly review 2023
I hadn't had time to review last year properly and generally it was a mild year looking at our weather records in the East of England. We used a total of 3851kWh on heating and hot water for the whole of 2023. That equates to an average 10.55kwh a day Our EPC suggests we need a combined 11,928kwh for central heating and to…
I bought a Heat Pump
I live in a village without mains gas and inherited an external oil boiler when we bought our bungalow in 2018. This is a timber-framed property built in 1980 and the central heating pipes that fed the radiators had been buried just below the surface of the concrete floors without any protection against corrosion.…
Install heat pump / removal of gas meter
Hi New to this forum :) I am currently renovating our house and as part of this we are installing a heat pump (to take advantage of the government credit!) My builder has says we do not need our gas meter anymore so I was planning to call our provider (EDF) to remove it. I will then save on the standing charge for gas :)…
Help needed on Nibe F1245-8 heat pump information messages
Hi Everyone! I use a Nibe F1245-8 brine-to-water heat pump and every time the Anti-Legionella treatment kicks in I have a series of disturbing messages. The Nibe service says that I should not worry about them as these are only information messages. I wonder why would Nibe call a "High pressure alarm" an Alarm and log it…
Ideal heat pumps
I've been quoted an Ideal 8kW heat pump for my ECO4 installation. The figures on the spec sheet look good but I've not seen any reports of them here, or elsewhere. Has anyone had any experience of them?
Air Source Heat Pump Freezing
I can't see any mention of heat pumps freezing over at low temperatures. Ours freezes over at anything lower than 3C. The defrost system activates but the effect is pretty feeble and all it seems to do is consume more electricity without giving us any more heat. Leaving the thing on set to 18C inside temperature with sub…
Heat pump quote
Hi I've just got an installers quote for installing an ASHP (well two quotes actually, one for a R290 and one for a R32) and in the items is listed on each: Boiler Upgrade Application £650.00 No VAT Is this usual that a firm charges for the BUS grant application? Seems a bit steep!
AirSource Heat Pump Freezing temperatures
Hi, We have a Stiebel WPL 17 Classic Heat pump installed, when the temperature gets to freezing, we find we have a drop in pressure and the heat pump stops working. The pressure has been consistent for weeks prior to that and everything working fine. This has happened three times now. Do you think this is a leak? If so why…
Heat Pump Dryers Operational Feature
I have a BEKO heat pump dryer (model B5T4923IW) that has a DELAY start feature. The delay can be unto 24 hours - I started to use this to make the most of a lower rate of electricity consumption (early hours). However, I have discovered an operational issue that has taken ages for BEKO to confirm - not documented etc. The…
Heat Pump question
Hi all, In considering a heat pump is a viable option to retain an existing oil fired system and keep existing radiators and pipework and simply have the heat pump work in tandem? I currently use logs and oil and wouldn’t want to change from this but simply see the heat pump as an add on. Thanks.
GSHP UFH side pressure rising
Hi guys, could do with some advice. I have an IVT HT PLUS E7 (seperate hwc). The ufh side is usually set at 1.5 bar. The needle does go up to around 2 bar when the heatpump is heating the dhw side. Get's really scary like tonight when it's on the legionella cycle and the water's going above 60c to 65c. I have to reduce the…
Air source heat pump installation good bad or ugly
Hi Has everyone who had an ASH installed had a good experience? Was it very disruptive? If carpets need to come up do they put them back? Do the instalers move furniture or do you have to move them? Possibly getting an installation in the new year, we have disabilities, so not very fit, and my wife suffers from stress due…
Change to ASHP with Octopus & govt. grant?
Hi, our oil boiler is coming up to 20 years old, as is the tank in the garden. I'm an Octopus customer and saw their ASHP 'quote' form and filled it in. It said "Your heat pump quote £2715.50"... and pay £500 (refundable) deposit to start things going. Bit quick for me that! :) I then had a bit of a read around bits and…

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Heat pumps

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