Radiatior output calculator

[Phooey]

Can anyone recommend a reliable online chart/calculator which will tell me what my *existing* radiator outputs are? I'm looking to change 2-4 rads for designer versions and need to know what my current rads are outputting?

Ta

[Ferg]

I use Purmos, generally, here is their sizing chart.

http://www.purmo.com/en/products/panels/purmo-comp...

Under 'Technical Data','Heat Outputs and dimensions'

You should calculate heat losses for the room really, though.

[Phooey]

Ferg said:

You should calculate heat losses for the room really, though.

Mmmmm. I'll have to look into that then. My initial thought was - what we had so far was sufficient - so just replace rads for ones with a similar output.

Thanks again

[Ferg]

Phooey said:

Mmmmm. I'll have to look into that then. My initial thought was - what we had so far was sufficient - so just replace rads for ones with a similar output.

Thanks again

That's sound reasoning, but you may be well over and if it comes down to an inbetween size it'd be good to know whether you could get the smaller one particularly if there's a big price differential or if you have to pay more for a special colour....