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Last seen: May 12, 2026
My heat pump frosting up this mormning. Outside air temperature 3.4 C, humidity 94%. Prepare for large KWh consumption today. Mike
I love it. A perpetual motion machine. Mike
@marvinator80 I get Grant to come and service once a year. You don't need a service plan with them, just book one whenever you want. tbh I don't think...
@roamingbull This is getting a bit off-piste! We are going BA/American via Dallas. Staying at the Wort Hotel in Jackson. There's a regular shuttle/ski...
@roamingbull I'll stick with it for now. My total electricity bill is about £300 per month. If the ASHP worked like I think it should at low temps the...
@roamingbull I share your sentiments. My Grant ASHP spends most of its time in a cycle of frosting up and defrosting as the air temperature drops belo...
Tinkering with my Grant ASHP is beyond my technical abilities but I too noticed that last night was the coldest night of the season so far. Here in ...
The recommendations for improving a rating are often laughable. A friend has a farmhouse (277m2 floor area) with plenty of surrounding land. The bu...
Here's a link to another recent study of the efficiency of heat pumps at mildly low temeratures, from a number of countries. All very encoura...
I lost the main circuit board about 4 years ago on my ASHP. I was never sure why but it was expensive to replace. We live in a rural area with relat...
It's almost 7 years ago now and I got nothing other than the manufacturers operating instructions, which are aimed more at the installer than the end ...
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Latest Posts
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RE: Estimating true heat loss from twelve months of consumption data
@cathoderay Very valid points and I agree with your sta...
By ian33a , 31 minutes ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 1 hour ago
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RE: Setback savings - fact or fiction?
@cathoderay - thats great. Is there any possibility ...
By JamesPa , 1 hour ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 3 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 11 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 14 hours ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 19 hours ago
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RE: My Grant R290 9kW Heat Pump Installation
@petch I'm very sorry that I have not picked up your po...
By GrahamF , 21 hours ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
Suggest you have a trial with Havenwise app. I have th...
By Broadsman , 23 hours ago
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RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 1 day ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
That was my understanding also.
By JamesPa , 1 day ago
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RE: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 1 day ago
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Heat geek have already stated that the pro is in fact c...
By JamesPa , 1 day ago
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RE: The Myth of the MCS Performance Guarantee
@editor I know. As if MCS wasn't bad enough, it's now e...
By Deltona , 1 day ago



