Talk:Central heating radiators

I've removed some stuff -

Where cast iron and steel radiators are mixed in a building, they should be on 2 separate heating zones, since the two have very different thermal behaviour, and using them both on the same circuit usually causes temperature control problems.

Is there any evidence for this statement? I know of installations with both on same circuit with no problems.

Cast iron radiators can be repaired using the same methods and materials as used with car engine heads and exhausts.

Maybe, but this article is about designing systems, not repairing them. Maybe it could go in another article e.g. CH operation? I think repairing CI might be an article in itself.

Cast iron radiators should always be attached securely to the wall, as their weight could cause serious injury to a child if pulled over.

Incorporated into rewording of article.

--John Stumbles 07:49, 17 January 2008 (GMT)

Unfinned rad figures

On Thu, 17 Jan 2008 17:58:36 +0000, Roger Mills wrote:

> In an earlier contribution to this discussion,
> John Stumbles <john.stumbles@ntlworld.com>  wrote:
>> What sort of heights were the rads you arrived at your figures for?
> They were all either 24" or 30" high.
...
> ... my complete list - with outputs in Watts/M^2 is:
> 
> TYPE                      Output at Delta-T=60 Output at Delta-T=50
> Single unfinned                           1280                 1021
> Single finned                             2020                 1612
> Double unfinned                           2170                 1732
> Double with single fins                   2790                 2226
> Double with double fins                   3575                 2853
>

Remove 'Under-construction' template

I think this is as finished as this article is going to get for the time being. There was a discussion of the calculation method on the ng. The rest of the material is taken from the existing Central Heating Design article which did not seem to have received any notable criticism, and its content seems reasonably uncontentious.

--John Stumbles 23:30, 14 February 2008 (GMT)