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Last seen: Mar 3, 2026
I can't say for certain, but on my analysis it's not the heat pump itself, but the changes to the heating system that are the cause of the high upfron...
@jamespa jumping on this thread late, and I'm of a similar opinion to you, I've been getting quotes every few years for a battery. The payback has g...
@judith we had a thermostat fitted for the kitchen as there is a lot of solar gain, and it seems to have stopped that function. I'm not really b...
There are heat recovery heat pumps that are designed to work on exhaust gasses from other processes, in an industrial setting for example. They could...
@jamespa I have a hydronic baseboard heater in the kitchen but I don't think it will work as it only activates the fan above 35C water temp. Not wor...
What do you connect that to internally, I'm assuming standard radiators don't work?
Thanks both, I found the 3kW on a UK document somewhere though I don't have it to add here right now. We are at that point where the 5kW unit is...
Thanks for the comprehensive write-up, I am considering the same unit. Do you know what the turn-down or minimum modulation is on the unit and roug...
As far as I can tell my vented system would have a peak pressure of about 0.5 Bar, which technically does meet the absolute minimum pressure of the AS...
Thanks, this is what I was thinking about, so as long as heat energy can transfer back through the PHE into the primary circuit during defrost, then t...
@jamespa I don't understand any point in an air test, if that fails, then the pipes are then broken, and the system cannot be refilled without digging...
@jamespa I hope I'm wrong but I suspect you will get an error code if it gets too low. Vented systems are so much simpler, it would be nice if heat ...
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Degrees of Separation
Latest Posts
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@davidb I can’t help you with contacts at Vaillant unfo...
By Mars , 1 hour ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@Ian-S, I actually think this is a pretty reasonable pl...
By Mars , 2 hours ago
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RE: Who's your electricity provider and what's your tariff?
@toodles I invested on Miele a pair of frodge frozor wh...
By AgentGeorge , 5 hours ago
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RE: Flushing system, cleaning and inhibitor
Flush and fill all complete. Octopus kindly gave us a...
By Old_Scientist , 5 hours ago
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RE: Wood burner with ASHP - direct air?
For what it's worth I installed a wood burner in this o...
By BlizzardGreen , 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 , 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: 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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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 , 6 days ago
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
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