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Last seen: Aug 16, 2026
I think we're still going to try hydrogen for residential heating on a small scale, then walk it back after a few buildings get launched into low eart...
Hmm I should have explained it better... Problem with these devices: they have only one pipe. Thus they suck in already conditioned air out of the r...
You guys have it easy It's engineering: calories in, calories out. What I had: stone house, built 1732, 50cm thick walls, estimated thermal mass...
I'd say it's up to you to decide between these two behaviors: * Manual balancing valves * For example Caleffi 132 which has a manual valve and flo...
Same here lol The fact the house had been heated for 40 years by a 12kW ground source heat pump could provide a bit of a hint about the actual heat ...
UFH manifolds are horribly expensive usually, except Chinese models. However manifolds for domestic water (or for heating but not UFH) are quite cheap...
Without information about where and how it was measured, this is useless. Don't even know if DC or AC. EBUS has 20VDC between the two wires when idl...
Single phase heat pump inverter drive consists of boost power factor correction, HV DC bus caps, then three phase full bridge inverter driving the mot...
If you have two isolating valves (one on each end of each loop) which you should in order to isolate a loop in case the pipe or the pipe fitting leaks...
As water flow temperature increases, heat pump COP decreases, therefore you pay more in electricity for the same amount of heat energy if you want it ...
Yes you can do that, you can also send the water first through the FCUs then through the slabs. In both cases the return temperature to the heat pum...
In my previous apartment I put a 10 liter water heater right below the kitchen sink. Instant hot water to the tap, but only 2kW power consumption, muc...
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Degrees of Separation
Latest Posts
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@editor Thanks for your response and recommendations. ...
By DavidB , 6 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 19 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu Of course, in the way of such things, there a...
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RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
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RE: Flushing system, cleaning and inhibitor
Yes, my 50L volumiser uses the two lower ports, so ther...
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
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RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 4 days ago
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I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 6 days ago
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I meant to say I cannot register my kit at Energyplus… ...
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