combi boiler solely for hot water

[TenementConservation]

hello,

I am doing an old building conservation project and the radiators and piping all needs changing. As this would involve a lot of interference with the historic floors etc, i've decided to install infrared panels as the heating source. I'd still like to use the boiler to provide my hot water, so would it just be a process of capping the 22m outlet from the boiler? its a Worcester 24i junior and only seems to have the radiator thermostat rather than a separate one for both hot water and central heating. Would this combi boiler work for just the hot water if the central heating was capped, or would it be better to have a towel radiator in the bathroom that keeps the loop flowing?

Many thanks

 

[SimonG]

Doubt it very much!!!!!!!!!!!!!!!!

 

[Knappers]

I'm sure you'd atleast need a 3m loop on the heating side as a heat-sink

 

[John.g]

Do Combis change back to CH and do a pump overrun when HW demand finishes?.

 

[Knappers]

Do Combis change back to CH and do a pump overrun when HW demand finishes?.

It's quite likely but also prob need a flow If accidentally run in heating mode.
Either way boiler manufacturer will have a min requirement for heating circuit capacity.
In short, if you can connect towel rad then yes - do that.

 

[Deleted member 120897]

I suppose you could decommission the heating controls and just keep a loop under the boiler?

 

[John.g]

That would seem prudent, although I never see any mention of pump overrun when DHW use finished.