Radiator size for room question

[matthew4444]

Hi

We have recently moved and I'm in the process of decorating our bedroom. I removed the radiator in order to strip the paper but now part way through decorating I'm wondering if the radiator is big enough to heat the room effectively. The radiator I've taken off is a curved one under the bay window - size wise it's 180cm long x 60cm high but seems very thin at only 1.5cm deep (It doesn't look as if it's a recent vintage either.) The room is quite large at 5.4m x 3.7m. I'm guessing there must be some sort of calculation to work out the BTU output of the radiator and whether this would be effective for the room size? I'd prefer not to have to put it on to test it's effectiveness after decorating as getting a new one could mean new brackets etc - meaning possible decoration damage! The room itself is double glazed and will be carpeted. Any suggestions?

Regards

Matthew

 

[gas4you]

How many outside walls? Cavity insulation? Ceiling height?

 

[matthew4444]

The house is a semi and was built in 1929. There's one outside wall in the room - no insulation in the cavity and the ceiling height is 2.6m.

 

[Timmyturtle]

How big is the window too?

 

[matthew4444]

Window is 1m high x 3.2m wide (measured round the bay).

 

[clf-gas]

Around 9650btu, based on your info and assuming you have a north facing wall and like an average room temp.

 

[matthew4444]

Thanks for the quick response. Yes the outside wall is north facing. Do you think the size of the existing rad is adequate?

 

[clf-gas]

No, existing rad if single panel will be around 6000+btu. Look for a double panel with double convectors 1800x600 (180x60), this will be around 10000btu/h.

 

[matthew4444]

Yes existing rad is a single.

Many thanks again for the quick and very informative answers.

Matthew

 

[gas4you]

1550 watts @ 18C bedroom temp

 

[clf-gas]

now that I see its a bedroom I get 8850btu/h

 

[gigz]

Curved rads are expensive, could work out cheaper fitting another rad on other wall.

 

[matthew4444]

Yes, I've seen several threads to do with curving radiators - however I'd still prefer to keep it where it is if possible, under the bay window. I'm guessing though that it's not possible to curve a double rad - one would need to be longer than the other??

Thanks again for all responses - most helpful.

 

[gas4you]

Look HERE