Do modern boilers heat the wall they are mounted on?

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Berkshire
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We're looking to have our boiler changed later this year. The existing boiler is mounted on a 1960's block wall that is part of the kitchen. This wall gets very warm when the boiler is in use and heats up the wall cupboards on the kitchen side such that we can't use the cupboards for anything that needs to be kept cooler.

We only have limited wall cupboard space in the kitchen so moving things away from the heat is difficult.

I wondered if it would be acceptable, and if necessary, to insulate the wall on the airing cupboard side with insulated plasterboard (e.g. 25mm or 50mm Celotex) and mounting the boiler on that? However, if modern boilers do not produce a lot of heat through their back or sides then the problem is sorted.

Any advice on this problem will be much appreciated?
 
1) Modern boilers do run cooler, you won't have a cast iron lump of heat exchanger kettling away on the wall.

2) You could frame out the airing cupboard wall, incorporating a celotex layer. You'd need to leave studwork at the right height for the boiler hanging bracket or face the wall with ply, MDF or similar.
 
In the past I have used 10mm self adhesive sound insulation sheet for cars which reduced the heat transfer from the boiler into a cupboard.

 

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