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Last seen: May 13, 2026
@bobtskutter Hi Bob. Installer asked me to check the pressure relief valve on the top of the Red Expansion tank. Only air came out; pressure was 1.5 a...
@bobtskutter Thanks. Chasing up my installer.
@bobtskutter So, just to be sure I understand, it shouldn't drop to zero when the heat pump is idling? In heating mode, it seems to be staying on or...
@bontwoody Thanks. I did top it up a few days ago and that's what made me look at it today. If the pressure is gradually rising to 1.9 when the pump...
@toodles Just to close this track, my installer was happy with the pump speed adjustments. Primary Grundfos Pump on speed setting 1 and Secondary Wilo...
@transparent Thank you for your comments. I have insulated my loft Automatic air valves and brass connections by wraping in Topsleeve Sheep wool pip...
@johnr @transparent Thank you for your suggestions. Yesterday I found out that the Air Valves are in fact automatic so I have to be a bit more caref...
@allyfish Many thanks for your reply. I was afraid I am getting too fussy although my installer may still think so! I am surprised that there are no...
@johnr I think I may have missread something somewhere as I now understand that the secondary pump flow rate should be equal to or greater than the pr...
@johnr Hi. I think I may have missled you in that my buffer is configured in exactly the same way as you describe. Whats a little bit concerning for...
Latest Posts
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 1 hour ago
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RE: Estimating true heat loss from twelve months of consumption data
Thank you both for your replies. It is heartening to di...
By ian33a , 2 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 10 hours ago
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RE: Setback savings - fact or fiction?
@jamespa — this version may be marginally better: &nb...
By cathodeRay , 12 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 , 12 hours ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 17 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 , 20 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 , 21 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: Grant Aeona 3 R32 cycling with weather compensation.
That would be abnormal but I cant see from your charts ...
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
