On 11/05/2019 13:02, Tim+ wrote:
We have a long low radiator below a window in our sitting room. Its manky
and ugly and Id like to replace it with something a bit less gross.

Its a twin panel steel affair without any fins. Id like one with a higher
output but similar dimensions to go with our condensing boiler (so fins
needed). The trouble is, Ive tried searching Stelrad and a few other
sites but cant seem to find anything over 2 metres long. I cant fit
anything taller than 450 due to the window sill.

Any suggestions for suppliers?

Tim


IME Quinn have slightly higher outputs than others for the same size
(better fins I guess).

Here you go: 400x2200 in a variety of panel arrangements giving:

1.4kW to 2.8kW at delta-T of 50C

https://www.mrcentralheating.co.uk/r...-2200mm-2400mm


Now, only you know how much power you need, but:

1) deltaT-50C means average rad temp minus room temp. So if you are
looking for fast heat up from 10C, that's an average water temp of 60C
which means about 65C in and 55C return - right on the limit for
condensing boilers.

I tend to work on deltaT-40C for the worst case warm up (water at 55/45
flow-return) and delta-T-30C to maintain the room once it's nice.

I stuck in the biggest radiators I could, (without going to triple panel
monsters) everywhere and have not regretted it as the room heat up is
fast and I can run the water temperature quite low which is more
efficient and more comfortable.

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