Not sure rad is big enough

[Goldspoon]

Upstairs drained yes.

 

[usslessatdiy]

If I can jump in on this thread, I have kitchen/diner part of which is an extension. It's approx 6 x 4mtrs, the extension part (4x3) has three outside walls, double glazed French doors and a DG window, the old part has just one outside wall. The builder assured me the room would hardly need any heating as the insulation was so good and just relocated the existing rad which is a single 160 x60cm. The room is so cold so I've resorted to topping up the heat with an electric heater. What size rad would I need to heat this room to a comfortable level? I did use an online calculator but bearing in mind what others have said about them not being very accurate, I thought I'd ask you experts.

What size are the windows/doors and how high is the ceiling please?

Window is 130 x 120 North facing, French doors 206 x 244 East facing and ceiling height 240.

 

[muggles]

If I can jump in on this thread, I have kitchen/diner part of which is an extension. It's approx 6 x 4mtrs, the extension part (4x3) has three outside walls, double glazed French doors and a DG window, the old part has just one outside wall. The builder assured me the room would hardly need any heating as the insulation was so good and just relocated the existing rad which is a single 160 x60cm. The room is so cold so I've resorted to topping up the heat with an electric heater. What size rad would I need to heat this room to a comfortable level? I did use an online calculator but bearing in mind what others have said about them not being very accurate, I thought I'd ask you experts.

What size are the windows/doors and how high is the ceiling please?

Window is 130 x 120 North facing, French doors 206 x 244 East facing and ceiling height 240.

Your present radiator is about 1.6kw, I reckon you need 3.6kw to make the room warm, so just over double what you presently have

 

[ChrisJ78]

Good grief, that's bigger than a 600x2000 K2 and even that isn't at 3.6kw