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Last seen: Sep 4, 2025
@jeff this will work if you have the appropriate wiring centre from Bosch, or the boiler has priority hit water. Bosch though are something of a...
@toml1981 do you have a room sensor any where and is it the same brand as the heat pump (which means it will probably vary the flow temperature) ...
@mattengineer I’ve probably installed 200 of the vaillant and 100 of the Viessmann equivalent I can talk you through the parameters if you like… ...
@webcmg yes you are right internal reference is optional if you get the heat input right relative to the outside temp you don’t need indoor refe...
Do you have UFH?
@sand I’d ask the ashp installer to do it..none of this stuff is simple. In fact he may have a straightforward answer as to why it’s not in the heated...
Can’t you get that controller into the house? It’s only a two core cable. once there it must be programmed to respond to actual room temperature...
@sand OK this is the problem..the controller that will optimise the heat pump is not that one...salus controllers do not feed back to the heat pump in...
Of the controller there seems to be an FTC 5 and 6
@sand can you post a link?
@editor the industry is set up as the boiler industry to exploit U.K. consumers Installers are poorly supported which is why this London base...
@kev-m unfortunately the heating industry has lost control of the narrative around efficient and optimised use of energy. does anyone seriously...
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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 , 5 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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