Putting Combi Boiler in brick shed

[Possom]

Was wondering if anyone had any thoughts they wanted to share on the idea of placing a combi boiler (gas not oil) in an single-brick thick small external shed which has a concrete roof.

This shed is attached to external wall of the kitchen so pipes/cables could go directly through the shed wall into the kitchen.

Obviously there would be damp in the air to some extent as it's an external shed and certainly it would be cold especially in winter.

Would this impact on the reliability of the boiler to position it here, and what potentially could be done to mitigate against any issues?

Thanks.

 

[Registered Gas Man]

Frost & pipestat (although most boilers have an internal Friday protection)

Pipe lagging.

You could install a small radiator at same time.

Top tip: Ask the RGI quoting he will know more having seen the location.

 

[Possom]

Frost & pipestat (although most boilers have an internal Friday protection)

Thanks Registered Gas Man.

So is the frost and pipe thermostat already in-built into the two biggest brands of boiler? What is Friday protection?

Would the boiler require additional fire protection, and if so, what would this entail?

 

[Bodd]

Wouldn't beard idea to insulate the walls and door.

 

[Possom]

insulate the walls and door.

What would be entailed in this? For example would warmth insulation foam slab to attached to the ceiling and then perhaps a corrugated iron be placed over this to cover it. The reason I mention corrugated iron as this is currently what is on the underside of the concrete roof.

I wonder how the inside of a timber door would be insulated?

(It's a very small shed, approximately the floor space for 1.5 washing machines)

 

[Mottie]

What about using something like THIS set on a low setting? Wouldn’t cost much to run as it would only come on when the heating is not on and the temperature starts to get low.

 

[Possom]

What about using something like THIS set on a low setting? Wouldn’t cost much to run as it would only come on when the heating is not on and the temperature starts to get low.

That's interesting, hadn't heard of this before. So it appears to be a heater (presumably with a standard 3-pin electrical plug) which only comes on when the temp falls to a specified temperature. Interesting...

 

[Mottie]

That's interesting, hadn't heard of this before. So it appears to be a heater (presumably with a standard 3-pin electrical plug) which only comes on when the temp falls to a specified temperature. Interesting...

Yeah, gardeners use them in greenhouses to protect plants from frost.

 

[diy_fun_uk]

I know each scenario is different, however one of my mates has his boiler installed in a brick garage attached to the house. It's not insulated or anything, however I'm not sure how cold it gets in depths of winter. Been installed for a few years now with no issues as far as I know. My sisters house has the boiler installed in a sort of small brick outhouse thing, was already there when she moved in and is obviously a good few years old. Runs without any issues.

 

[algas]

I have a combi installed in a brick outhouse its been there for 16 years without problems, pipes are lagged , boiler comes on with frost stat.

 

[Possom]

I have a combi installed in a brick outhouse its been there for 16 years without problems, pipes are lagged , boiler comes on with frost stat.

Do you have the brick outhouse walls insulated with a heat-insulating foam slab, or the roof heat insulated?

 

[Londoner2]

Yes standard practice, i had one in my uninsulated outbuilding for over 15 years, an old combi that had a frost pipe stat and a frost stat fitted.

 

[Possom]

had a frost pipe stat and a frost stat fitted.

Are these separate products which are added when the boiler is being installed? They don't come as part of the boiler - is that correct?

Are these stats determining when the temperature in the vicinity of the boiler has dropped below freezing and then providing heat to the boiler?

 

[Londoner2]

Are these separate products which are added when the boiler is being installed? They don't come as part of the boiler - is that correct?

Are these stats determining when the temperature in the vicinity of the boiler has dropped below freezing and then providing heat to the boiler?

Yes.

https://www.plumbnation.co.uk/site/honeywell-l641b1004-low-limit-pipe-thermostat/

and

https://www.toolstation.com/corgi-f...12ykxDgKY4B2nYIOd2K3wDj8Kq1OPdXxoCfbEQAvD_BwE

 

[Hugh Jaleak]

A Froststat will override any time controls fitted to the boiler to switch it on during cold weather and run the boiler/system to prevent the boiler and pipework freezing. Has to be noted though, with modern condensing boilers, suitable frost precautions must be taken to protect the condensate drain from freezing, as a frozen condensate pipe will stop the boiler from operating, regardless of Froststat operation.

A frozen boiler is likely to be a write off.