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Judith
@judith
Member
Noble Member
Joined: Nov 28, 2023
Last seen: Oct 17, 2025
Profile Activity
Topics: 3 / Replies: 411
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Reply
RE: ÀSHP heat loss - how close to perfect can we get?

We get extra heat loss on wet and windy days too, even the best heat loss model, the passive house one (which does allow for solar gain and shading) d...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Aerotherm Plus - What is Green IQ setting?

I too would like to read Vaillant’s explanation since it seems to just be a marketing gimmick on gas boilers and the sensocomfort is to be used on all...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

First “no blower test above 1ACH”. If these are done on a building site on a typical design, once this passes the rest of the houses are built the sam...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

Somebody above added a throw away line about air leakage through chimneys Here are some measurements (and lots of references) from BRE. Mvhr sy...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP noise, and running a high temperature heat pump at low temperature

Hi Coli, @ccap Are you planning to apply for the BUS £7500? If so you have to follow the MCS rules which mean any fossil fuel heating must be removed ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP noise, and running a high temperature heat pump at low temperature

The high temp is only used for the legionnaires cycle and the rest of the time it should be in a system designed to be below 45 and mostly ~30C. I can...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on Vaillant Sensocomfort

The app and sensocomfort align for instantaneous readings but the app gives you the pattern over time and allows you to see heating and dhw independen...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Simulation of ASHP with Gas boiler as part of decision process

I have a suspicion @cathoderay that when you tuned your oil heating down to reduce your bills that the temperature dropped incredibly when not on. So ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on Vaillant Sensocomfort

I can’t answer your questions on the inactive mode since we’re not using at present (using expanded because we still have solar gain) but I can answer...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Battery sizing - How low can you go!

if course what I should have written was INcompatible within their own range!

1 year ago
Forum
Energy Storage
Reply
RE: British Gas versus Octopus: Two possible heat pump routes - how to evaluate them?

AWESOME and a new concrete floor! Concrete doesn’t cost much but the principle of something extra is great. i hope it continues to work out well.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Book: Not Zero

I clearly didn’t pick up the best review so many thanks to @majordennisbloodnok for choosing a better one! Like him I’m not going to waste my time and...

1 year ago
Forum
Well & Truly Off The Grid
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