Search with Wattson
Activity
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

cathodeRay
cathodeRay
@cathoderay
Moderator
Famed Member
Joined: Feb 28, 2022
Last seen: Sep 7, 2026
Topics: 18 / Replies: 3003
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

@jamespa - we cross posted. I think there is a fundamental flaw in my suggested approach as described above, most people don't have access to the data...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

And of course I can do this, measure energy out, but only because I have the data I do. Since most people don't have access to this data for their hea...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

That is exactly what I have been doing, since early last year (late March)! On my standard chart, which is based on minute by minute data, you can see...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

@majordennisbloodnok - as you well know, the general view here is the only dumb question is the unasked one. I too have thought about what measure...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

Juxtaposing those two could lead to interesting results... Seriously though, I think the following, which are not a million miles at all from your s...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

In fairness, I didn't say he said whatiffery fails, it is me who said whatiffery fails. I am deliberately plugging this point because as frequent read...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

In fairness, this is what I have been saying for some considerable time. It is why whatiffery fails. Using crass numbers eg stone wall U values doesn'...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

I have noticed that as well as solar gain, my house also gets wind chill on wet windy days, especially if the wind is in the wrong quarter. Yet, so fa...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

@larry - I have now read the SPAB U value report in full, and it makes interesting reading, despite in places getting tangled up in putting up a basec...

2 years ago
Reply
RE: System pressure dropping on my Ecodan ASHP system

@spacebiscuit - this is an interesting question, why does an ASHP circuit need to be pressurised in the first place? I can't be, as it is with a tradi...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

Very good to have your experience and expertise here, I am sure you have much to offer which I am sure others will welcome. Thanks too for the U Va...

2 years ago
Reply
RE: ÀSHP heat loss - how close to perfect can we get?

Thanks, that's useful to know. I'll see what I can dig up. I guess that may mean you are an installer (which is fine - all are welcome here!)? Bu...

2 years ago
Page 130 / 252
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO