size of radiator

[donko]

I'm installing a new radiator in my garage conversion.The room measures 15ftx9ft and 8ft in height.The room will be fully insulated.What size of radiator will i need?.B&q calcs say 3500 btu.Does this sound ok?

 

[Nige F]

Bit low My trusty Mears says 4600 with one outside wall(insulated)

 

[Expertboy]

3500?

Was that a rough guess or did they calculate that properly?

Better to be near 5000 btu as advised above.

 

[donko]

3500?

Was that a rough guess or did they calculate that properly?

Better to be near 5000 btu as advised above.

Did the calcs online using their diy section.
What sort of size are we talking? I know you can get single or double rads?

 

[Nige F]

3500?

Was that a rough guess or did they calculate that properly?

Better to be near 5000 btu as advised above.

Did the calcs online using their diy section.
What sort of size are we talking? I know you can get single or double rads?

Stelrad compact K2- 1m. long x450mm. high double convector with grille+side panels

 

[donko]

3500?

Was that a rough guess or did they calculate that properly?

Better to be near 5000 btu as advised above.

Did the calcs online using their diy section.
What sort of size are we talking? I know you can get single or double rads?

Stelrad compact K2- 1m. long x450mm. high double convector with grille+side panels

Ta for that