On 13/01/2021 09:55, charles wrote:
In article , Owain
Lastname wrote:
On Wednesday, 13 January 2021 at 06:01:57 UTC, Funny Lingus wrote:
Question: Does the team think that putting the heaters behind the doors
would have any detrimental effect on heat distribution. All the
storage heaters are under windows at the moment, so immediately lose a
huge amount of heat, although double glazed.

British Standard 5449 "(Central Heating) Forced circulation hot water
heating systems for domestic premises" recommends: "Wherever practicable
individual heat emitters (other than fan convectors) should be located on
outside walls preferably beneath windows to offset the cooling effect: it
is an advantage to choose an emitter of such a length that it occupies
the full width of the window."

My experience is that installers now prefer to put radiators on internal
walls ostensibly to reduce heat loss but I think it's actually because it
uses a lot less pipe.

When we moved into this house' over 40 years ago, we found the radiators
in the new extension were in the middle of two no-window walls. Basically,
nowhere to put furniture such as bookcase or piano. I capped off one feed
and extended the other to under the window. Had to do it on the surface
since the room has a concrete floor. The rest of the house has suspended
wooded floors. [Snip]


It should have a construction slab about 5 inches thick, topped with
about 80mm of aerated screed which is easier to 'polish' to give a
flat surface. You can (or should have been) able to dig a channel
through the screed without a massive amount of effort.