On Thu, 16 Feb 2006 23:18:22 +0000, John Rumm
wrote:

Andy Hall wrote:

On Thu, 16 Feb 2006 11:29:11 +0000, John Rumm
wrote:


Andy Hall wrote:


I would be surprised if 38kW were needed for this application. I
might believe 25.

It does sound excessive... worst case I could calculate for my place was
about 8kW and that included the 2nd floor as well (although compared to
the rest of the house that is well insulated).



Sure, but here we are talking about three external walls that are
probably just double brick. That makes a huge difference.

Yup, but that is what I have got: 9" solid wall with 1" render over


I'm surprised that you had so little heatloss.

However, keep in mind that a terraced house is often narrow and deep
rather than more square like a detached or semidetached house. It may
also have an extension section for kitchen and third bedroom.

The result is a substantial outside wall area.


--

..andy