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Last seen: Jan 6, 2026
That's a great photo to show of the pipework. It appears to show a low loss header (black vertical cylinder), which has been bypassed. There are two...
Thank you. The proposed ASHP would be a low power (4kW) device connected to an existing supply. Do I still need to inform the DNO? Thanks Bob
Hello everyone, time for a dumb question. Am I allowed to self install a heat pump in the UK? It would be the only one on the property. It would...
Excellent, I'm glad it's settled down. Regards Bob
I think your original calculation was based on propane LIQUID. You measured propane GAS volume, then converted it to LIQUID volume, then worked out ...
I wonder if those charts could be redrawn to make the LWT and RWT trends easier to read? Was the system in eco mode during the night when it was cycl...
@sussex-greenish I like your logic. Where does the 65.33kWh come from? I guess your LPG bullet has a flow meter on it and you've looked at the ca...
@Terry1812 welcome, you're going down a thermodynamics rabbit hole 🙂 Long story short, yes you're correct. At a fixed flow and a fixed DT your po...
🙂 I'd love to know what you find out, please post the solution. Regards Bob
OK, that is a pressure relief valve for your hot water cylinder, not your heating system. That valve is to protect the cylinder from bursting. There...
I know there's a lot of people offering help and advice, that's the great thing about the internet! 🙂 If you're using 100kWh per day, that's 360,00...
The valve on top of the red expansion tank is what's used to fill the air bladder inside the tank. It's good that water didn't come out. The install...
Latest Posts
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — a measured heat loss always trumps a calculat...
By cathodeRay , 39 seconds ago
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RE: Setback savings - fact or fiction?
Yes, see below. They are just standard regression lines...
By cathodeRay , 28 minutes ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 2 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 4 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 13 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 , 15 hours ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 20 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 , 22 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 , 1 day 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: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 2 days ago
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Heat geek have already stated that the pro is in fact c...
By JamesPa , 2 days 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 , 2 days ago
