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Last seen: Sep 4, 2025
drop the nest, you are on a hiding to nothing. it gives no feed back to the pump about required temperatures.. stick with the heat pumps own con...
@prunus a decent controller combines both. i suspect all heat pump controllers have a setting deferring to outside temperature to shut it down complet...
@prunus sorry an on-off control on a heat pump should never be used, or included in an install. the controller should always be used to put a pump ...
@ianjrw just ask for the heat pumps own controller. That’s it.
expansion vessels have a schrader valve so you can reinstate the dry side with a bicycle pump with the appropriate attachment selaed systems can...
@kev-m The heating industry revels in the publics disinterest and and ignorance about heating. Its not helped by poor training that pays lip service t...
they just need to mandate compensation controls, that’ll yield anything between a 10 and 20% decrease in emmisions with better comfort levels in build...
The issue is that an ASHP and boiler is part of a system for which there is no training in the U.K. People buy ASHPs and boilers with out fully compre...
For those who don’t get it at the heart of the issue is a dichotomy in policy. Heat pumps, because they are kw restricted, have to deliver a stable s...
@derek-m that doesn’t change the control strategy to put a heating system in a stable state (room temp) The heat pump performance will be set and un...
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Latest Posts
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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 , 29 minutes 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 , 16 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 , 20 hours ago
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RE: Is it the house or the equipment?
@majordennisbloodnok I do sympathise. On the original...
By springswood , 22 hours 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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RE: Tell us about your Solar (PV) setup
We have a 6.56kW solar PV system (16x 410W panels) inst...
By Rob of York , 4 days ago


