Airing Cupboard Small Rad Vs Waste Heat

[Diggory]

Hi there - I’ve recently switched to a combi (ecoFIT pure 825) and it’s installed in my airing cupboard after removal of the old hot water cylinder.
Presently, it’s only running a small zone of UFH with the main flow/return for nine radiators not connected; so it’s not really being fully exercised.

I’m wondering when it’s all connected / plumbed in, will I get sufficient useful waste heat from the boiler and associated pipework to mean that I won’t need a small rad / towel rail inside the airing cupboard. The UFH manifold is in the cupboard as is about 1500mm of exposed 22mm flow/return; the cupboard is typical at about 900mm wide, 750mm deep and 2,300 tall.

Thanks in advance,

D

 

[endecotp]

will I get sufficient useful waste heat from the boiler and associated pipework to mean that I won’t need a small rad / towel rail inside the airing cupboard.

Surely yes. How warm do you want it to be? Do you try to dry wet laundry in there?

 

[Diggory]

Thanks reply.

Do you try to dry wet laundry in there?

Not really - maybe some used / damp shower towels.
And some general airing of clothes after ironing.

Sounds like I should give it a try as it is - see how it works out.

Best D

 

[Mister Banks]

We have a fully insulated HWC and pipe work in our airing cupboard yet the temperature is always around 30c. Only the valve bodies are exposed.

 

[Diggory]

Thanks - useful to know

Best D

 

[ETAF]

we have only had the pipework for central heating in the airing cupboard - two main large pipes 22mm running down the side of the cupboard to the floor - then a connector block for all the Mini pipework for the 7 rads that are still on that mini system (the rest of the pipework was changed to 15mm but runs in the loft providing 2 towel rails and 3 rads

Boiler is now a combi replaced last year - in a utility room , so not part of the airing cupboard - not sure these days how much heat they give out - in the past 70/80's we had one in kitchen and when in use it used to heat the kitchen OK on its own

 

[Harry Bloomfield]

I’m wondering when it’s all connected / plumbed in, will I get sufficient useful waste heat from the boiler and associated pipework to mean that I won’t need a small rad / towel rail inside the airing cupboard. The UFH manifold is in the cupboard as is about 1500mm of exposed 22mm flow/return; the cupboard is typical at about 900mm wide, 750mm deep and 2,300 tall.

From the boiler casing itself, there will be hardly any waste heat at all. I have my Vaillant enclosed in it's own adapted cupboard, on the kitchen wall - that small cupboard doesn't get at all warm. The concentric flue, will also be cold. How warm your airing cupboard gets, will be entirely dependent on waste heat from any pipework, installed in the cupboard.

Drying used, wet towels in an enclosed space, is a really bad idea, unless you add some ventilation to the cupboard.

 

[Diggory]

Drying used, wet towels in an enclosed space, is a really bad idea, unless you add some ventilation to the cupboard.

Good point - I can add a natural convection vent / grille to top and bottom of door (I’m assuming you don’t mean forced ventilation).

D

 

[Harry Bloomfield]

Good point - I can add a natural convection vent / grille to top and bottom of door (I’m assuming you don’t mean forced ventilation).

No, just natural ventilation will do, top and bottom.

 

[Diggory]

Thanks clarification
D