Search with Wattson

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!

MCS Heat Loss Calculations

Air Source Heat Pumps (ASHPs)

Last Post by JamesPa 2 years ago

3 Posts

3 Users

2 Reactions

2,068 Views

RSS

jswhite

(@jswhite)

Trusted Member Member

Joined: 4 years ago

Posts: 31

Topic starter 20/04/2024 1:20 pm [#1505]

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).

Quote

IanMK13

(@ianmk13)

Reputable Member Member

Joined: 3 years ago

Posts: 195

20/04/2024 2:30 pm

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.

👍

ReplyQuote

JamesPa

(@jamespa)

Illustrious Member Moderator

Joined: 3 years ago

Posts: 5269

20/04/2024 2:33 pm

Posted by: @ianmk13

↑

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.

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.

👍

ReplyQuote