Correct size rad for new room, needs to meet Build.regs.

[kitessurfer]

Hi All, getting ever closer to completion of my garage conversion
With regards to building regs, when I get this signed off is the inspector going to check up on the size of the room and the size of the radiator I have installed?
All other rads in the house a single skin, not double type. What would you recommend installing below this window, should it run the full width of the window or could it be taller but more narrow? I understand under window is best for hot air to circulate within the room.
Window about 220cm in width
ta
KS
View media item 6149

 

[kitessurfer]

forgot to give size of the room, about 2.4 by 3.2 metres, 220cm ceiling

 

[leakydave]

Will also need to know window area, whether single or double glazed, how much insulation in roof, floor construction and how many outside walls

 

[Agile]

No one will check the power output but you will have to live with it.

Its best to make the radiator as wide as possible but practically they look best if matched to the width of the window.

Tony