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Last seen: Aug 29, 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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Degrees of Separation
Latest Posts
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
I can't help with your principal question but as a matt...
By JamesPa , 2 hours ago
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RE: Siting of the external sensor on a heatpump
My heat pump receives sunlight, so when the fan is not ...
By bobflux , 6 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 21 hours ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
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RE: Is it the house or the equipment?
@majordennisbloodnok I do sympathise. On the original...
By springswood , 1 day ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 1 day ago
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Sorry to hear about the problems, its going to be somet...
By JamesPa , 1 day ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 3 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
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