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Johnmo
@johnmo
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Noble Member
Joined: Jan 25, 2023
Last seen: May 24, 2025
Profile Activity
Topics: 2 / Replies: 537
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Reply
RE: Heat pump domestic hot water.

Possibly why you use so much electric, likely the heat pump is starting the immersion as it's not capable of getting there on its own. Turn the demand...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump domestic hot water.

Seen similar mentioned for big Vaillant units. I would consider doing a comparison trial just heating with the immersion and compare. Also double chec...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump domestic hot water.

@david999 you need to include some specifics, your figure could heat up a thimble or a lake, pretty meaningless really. That is a heating power, b...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump domestic hot water.

210L 2 heats to 50 degs today, total used 2.6kW. if it heats once 1.4kW

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sunamp Thermino Heat Battery

Several different views on Buildhub. @TerryE on Buildhub has just replaced 2 units with an unvented cylinder due to reliability issues. Do your due d...

8 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Additional £250 off the price from Octopus

Not sure I would encourage, anyone to get a heat pump designed to run at 50 degs. Without knowing they will need to fit bigger radiators than those th...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: EV charger working with TOU tariff, solar PV and ASHP

Certainly for battery charging against forecast, all systems need a little fine tuning to get them reliably forecasting and charging. I ditched home a...

8 months ago
Forum
Your Home
Reply
RE: ASHP - a few (probably dumb) questions about the lived experience

Heat pump sizing does matter, but not sure it matters as much as made out, with modulating heat pumps. An example above where a 12kW unit turns down 3...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In middle of ASHP installation- a few Questions

First the ASHP has to sit sit level to with in the limit prescribed in the manufacturers instructions. The important bit about the weather compensat...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Choice of heat pump - Help needed - Vaillant Arotherm versus Samsung versus Logic Air versus Grant Aerona

OP missed the make, Ideal from the model name 'LogicAir' So not really unknown

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP - a few (probably dumb) questions about the lived experience

Get that. But everyone of our relatives has a 13 tog duvet on the bed, we used to use low tog for summer and high for winter. We now use a low tog all...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP - a few (probably dumb) questions about the lived experience

if you are getting condensation in the heating season, your ventilation is a long way from being adequate. As you heat air, its relative humidity drop...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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