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!
MCS Heat Loss Calculations
I have a very specific question about completing heat loss calculations.
What are the rules to measure heat loss from stairs?
Are they ignored, included in the volume of the landing, etc. The room list in MCS spreadsheet does not mention stairs and nor do any of the examples of diy heat loss (that I can find).
I don't know about 'rules'; I did my calculations by first principles, considering where any heat would be lost. Basically, first floor ceiling losses into the loft, ground floor losses into the floor and any external walls and windows. Add in a consideration for 'air change' and drafts.
Posted by: @ianmk13I don't know about 'rules'; I did my calculations by first principles, considering where any heat would be lost. Basically, first floor ceiling losses into the loft, ground floor losses into the floor and any external walls and windows. Add in a consideration for 'air change' and drafts.
Exactly. Hall, stairs and landing are just another room, like any other.
4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.
- 27 Forums
- 2,764 Topics
- 65.1 K Posts
- 2,820 Online
- 7,169 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Siting of the external sensor on a heatpump
It wouldn't be my first go-to suggestion for most peopl...
By Majordennisbloodnok , 9 minutes ago
-
RE: Daikin ESPAltherma and Home Assistant installation
@majordennisbloodnok Over the last few days ...
By Bash , 12 minutes ago
-
RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
@judith Thanks very much for this! My room by room calc...
By jon , 14 hours ago
-
RE: Vaillant Arotherm Plus 7KW need a service on it
I think that is outrageous even if I suspect not unique...
By Batpred , 15 hours ago
-
RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 19 hours ago
-
RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 1 day ago
-
RE: Adventures in heat loss calculations
Posted by: @jamespa At this point its probably worth...
By Rob of York , 1 day ago
-
@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 1 day ago
-
RE: Tell us about your Solar (PV) setup
We have a 6.56kW solar PV system (16x 410W panels) inst...
By Rob of York , 2 days ago
-
RE: Where heat loss surveys seem to go against practical reality
@cathoderay @jamespa I've managed to get some nice re...
By Rob of York , 3 days ago
-
RE: 7kW EV Charger Options Advice
Doh, not sure that I was thinking straight there, less ...
By Rusty , 3 days ago
-
Thank you @trebor12345
By rgabor , 3 days ago
-
Panasonic Free Multi Z and Etherea Internal units.
My prospective installers have suggested the Panasonic ...
By Toodles , 4 days ago
-
RE: Next steps on my ASHP journey: Radiators and Pipework
Great. You just need to find a way of cranking up your...
By JamesPa , 4 days ago




