Air brick for log burner in a new build

[fuzzytrifle]

5kw log burner in a new build - according to various articles I've read there's no need to fit an air brick for log burners 5kw or under, but as a new build is almost draught free, should I install an air brick anyway?

If yes, then how big should it be and does the position matter? I was thinking single brick size and diagonally across the room, but have no idea if what height it should be from the floor. Many thanks in advance.

 

[newbuildinstaller]

surely your HETAS approved installer can tell you this

PS soild fuel kills a lot more people that gas bare that in mind

 

[fuzzytrifle]

surely your HETAS approved installer can tell you this

I'm converting a small barn, so it's as insulated and draught free as a new build. We're not planning on installing the stove (bought from our previous property) immediately - I just wanted to get the room ready for when we do and the type of insulation we're using would make it awkward to fit an air brick in the future.

 

[CombustionGuy]

I wouldn't fit a air brick I would see if your stove has a air supply kit that fits to the bottom of the stove and goes direct to outside. This way no cold air when woodburner is not being used

 

[fuzzytrifle]

I wouldn't fit a air brick I would see if your stove has a air supply kit that fits to the bottom of the stove

It's a very simple stove and only has a couple of grills on the front to control the draught - plus it will be located against an internal block wall.

 

[denso13]

It depends how air tight the building is. If it has an air permeability of less than 5m³/h.m² then the requirement is 550mm² per kW, regardless of the total kW output of the stove.

 

[fuzzytrifle]

It depends how air tight the building is. If it has an air permeability of less than 5m³/h.m² then the requirement is 550mm² per kW, regardless of the total kW output of the stove.

I think I'm going to leave it until we actually have the stove installed, as I'll probably only end up having to do the job again!

Just out of interest though - I've got a 9" x 3" cast iron air brick that I was hoping to use. It has an area of 4,719mm2 (39 x 11mmx11mm holes) and assuming that the internal grill has at least the same value, then this would provide sufficient air flow for an 8.5kw stove?