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Last seen: Aug 16, 2026
I don't remember the manufacturer name, but I saw similar products. It looks like a fan coil, you can mount it in a ceiling. There's an air to water h...
UFH is ideal to get max efficiency with a heat pump, but you need a properly designed UFH. - Correct pipe spacing (calculated from heat loss) to del...
Sun getting through the windows: if you don't have solar protection on the windows (blinds, louvred shutters, etc) then the sun can pump close to 1kW/...
+1 that works well If most of the thermal mass is in the slab (the rest being drywall with interior insulation), and you can control the slab temper...
If it's a data cable, current will be minuscule, voltage drop irrelevant. If they run significant current through it then they should call it "power...
In France we had such scheme with wind turbines. Investors own a share of the wind turbine, and cash in a share of the profits, but an overlooked de...
Office (blue) and Living Room (orange) have UFH, running 18°C water from the heat pump about 12 hours a day (on free PV). Living room also has a mob...
Watts Microflex Duo, intended for burial, about 45€/m, with 2x 26/32mm Barrier PEX. It is quite stiff and difficult to manoeuver but it does the job...
The drawing is fine and perfectly understandable except "NRV" which has the symbol of a pump but I guess "NRV" means "Non return valve" or "Check valv...
If flow is too low, the heat pump will probably throw a fault. High flow is not a problem for the heat pump, it'll work fine. Higher flow gives lowe...
Oh my, bureaucracy at its finest! Does that imply that the reason why both my PV inverters and heat pump have a 8 pin connector with extremely basic...
In fact inverters with a bit of local energy storage could also do that, if programmed accordingly. Sadly it doesn't seem the current hardware is prog...
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Degrees of Separation
Latest Posts
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@editor Thanks for your response and recommendations. ...
By DavidB , 5 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 , 18 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...
By Toodles , 1 day ago
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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...
By Old_Scientist , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 4 days ago
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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...
By Majordennisbloodnok , 5 days ago
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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… ...
By Batpred , 6 days ago
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