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Last seen: May 31, 2026
I suspect it is very common for installers to avoid using weather compensation, and instead set a constant high flow temperature. It makes for a quic...
@cathoderay You could try turning all rad TRV's off except one, confirm that one works as expected, move through them all one by one? Our plumbin...
@cathoderay Great the PHE seems to be ok! Any pipes outside clearly need to be lagged, but indoor ones probably not. Any pipework inside the ther...
If you have a PHE, then there will be a temp drop between the two separate liquids, and this temp drop is what pushes the heat flow from one liquid to...
Usually heat exchangers used in plumbing are bphe (brazed plate heat exchangers). They have two connections at each end, and should always be used in...
@howiewsl There seem to be two issues: £5 a day It's not warm enough Taking the first of these - 'since you've a 5p/24p tariff, the number of...
It’s a lot simpler to spec a gas boiler than an ashp. While there are similarities - modern examples of both have huge modulation ranges, so don’t ju...
We had a vent axia HR25 for a few years, it worked quite well. It's a fan replacement unit, with heat exchanger - there are quite a lot on the market...
I'm sorry you're having trouble with it, I hope it can be made to work better. Apologies in advance for a flood of questions, which hopefully will he...
I think an anaerobic digester has to run warm, and it uses some of the available organic material to keep itself warm. For that reason, it works bett...
About 4 months ago I finished our diy GSHP. I think your controller is much more sophisticated than the one I made - our house is very well insulated...
We have a 30kWh Nissan Leaf with V2G on a trial by OVO, which we've been on for almost 2 years. The car is on our driveway connected by a Chademo con...
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Latest Posts
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Floor standing brackets for K3 rads
My neighbour is a plumber and said I would need to fit ...
By Singlespeed , 26 minutes ago
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After an intense recode, I’m pleased to announce that w...
By Mars , 34 minutes ago
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RE: Heat pump installation quotations
@batpred, @sttpd1917 I agree with what @batpred says...
By JamesPa , 34 minutes ago
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RE: Harvest Thermal - ASHP with a smart thermal battery
As its using ToU tarrifs then its totally believable so...
By JamesPa , 2 hours ago
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Why do you want to maintain a specific deltaT? The out...
By JamesPa , 2 hours ago
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Hopefully this will answer your question. To...
By ASHP-BOBBA , 3 hours ago
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RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 3 hours ago
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Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 5 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
By Judith , 5 hours ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
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RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
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RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
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