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Last seen: Oct 1, 2025
@grantmethestrength I am sorry you have not had an optimal service. The FRV valves MUST be installed on the return of the radiators, we had a problem ...
@adamk Where is your pump connected to? What pump valves are on the pump? What diverter valve are you using? Vibration in pipes usually comes from val...
It may be pushing 40l/min, but where is that water going, maybe through the first 2 radiators and very little to the rest?
If you do not have enough flow due to small pipes, like Mars's installation, you may need more pressure and flow than the unit can provide. Are you su...
@rhh1 Adding a second pump is not a problem, some units have a control for a second pump as this one does. When you add a second pump, it must either ...
All done, pressure is off as adequate flow is achieved at all radiators 😀 It was touch and go but all sorted.
@editor No pressure then 🤣 🤣
It will improve performance, but by how much depends on the design of the system. If you are installing SLINKEYS (coiled pipe, not straight pipe runs,...
@prunus, @jamespa is correct, but removing the buffer could possibly halve your heating bill, possibly more. You have admitted that you have no idea ...
@bart That is terrible and a clear breach of the building regulations, and therefore a breach of the law. The CPS is neglecting its duty to you as a m...
@bart Stinks of corruption.
@jamespa Good idea, it will have to be fast, I can get it directly into DESNEZ where it will be heard. I will send a message to @editor now.
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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



