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Last seen: Apr 8, 2025
You can't forecast the annual generation by simple extrapolation from the winter six months. I have a winter tree shading problem (some of the trees a...
Encouragement of installers to take account of the emitters must be a good thing. It might make it more difficult for the likes of Octopus to get away...
The flow doesn't get reversed but just keeps circulating without being heated at the heat pump. Consequently there's a drop in flow temperature as the...
1970s 4-bed detached house approx 168 sq.m internal area in central southern England. Approx 200mm of roof insulation, insulated cavity walls, fairly ...
How many pipes go in/out of those tanks? Buffer tanks normally have four pipes but if there's only one pipe per tank then they are expansion tanks, he...
Further to the above I have just made some observations during a defrost cycle. My Arotherm+ kept the secondary (radiator) circuit pump running so the...
I should add that my system has two circulating pumps: One in the heat pump which circulates water to the buffer tank and DHW cylinder and one in the ...
I agree with the cost of servicing being a major disincentive for the heat pump purchase. I had hoped that investing in a heat pump and associated rad...
I've got a 7kW Arotherm+ with 50 L buffer tank (so no immediate slug of cold water going to the radiators) and see the recovery from defrosting as onl...
The condensation demonstrates that the curtains are very effective so the window gets cold. My bedroom has a fairly big (2.4m x 1.2m) north-facing win...
Curtains and the loss through the window is what I was thinking about overnight. I've got a 3m wide and two storey high north facing window in my hall...
I have to wonder if the cold lounge needs a much bigger, or additional, radiator to get sufficient heat output from water which is cooler than what th...
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Degrees of Separation
Latest Posts
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RE: battery storage without solar
There's an interesting gotcha about that. Suppose the...
By bobflux , 27 minutes ago
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Heat pump branding. Clever, contemporary… or a bit too much?
I came across this page from a Heat Geek heat-loss/desi...
By Mars , 8 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
@jamespa You have to bear in mind that this is a holida...
By Paul1098 , 8 hours ago
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RE: Analysis of the economics of switching to an A2W ASHP compared to other heat sources
I had a meeting today with a company based out of Swede...
By Mars , 9 hours ago
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RE: Review your electricity provider
We were with Octopus in our old house and it was fault...
By ian33a , 11 hours ago
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RE: Estimating true heat loss from twelve months of consumption data
I did, indeed, go with the 12 KW Vaillant unit.  ...
By ian33a , 18 hours ago
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RE: Say hello and introduce yourself
@olivierm welcome to the forums and finding the right i...
By Mars , 21 hours ago
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RE: Tesla Powerwall (2) Calibration Cycles
I’ve had two calibration cycles in the last three month...
By Davesoa , 2 days ago
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RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@editor That's a pity, but thank you for checking. I'l...
By ltron2 , 2 days ago
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My fifth heat pump book, Heat Pumps Explained, is out n...
By Mars , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
Just furkled Into the parameter menu. Found the master ...
By AgentGeorge , 3 days ago
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RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
Yes, and I would suggest likely to get worse with more ...
By Batpred , 4 days ago
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RE: Electricity price predictions
This topic seems more suitable for this thread... I a...
By Batpred , 4 days ago
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RE: Why are ASHP installs so expensive?
It is clearly difficult to say, there must be cases whe...
By Batpred , 4 days ago
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