Will doing this blow up the heating system?

[Tom_B]

Hi Everyone,

My CH system has a an underfloor heating loop in the kitchen. What I want to do is run the UFH 24 hours with its own control system. The Glow worm 38cxi boiler only has one circulation pump so can I fit a motor valve into the radiator circuit and control it with a wireless thermostat? Is there enough of a loop that the circulation pump will be ok or will bad things happen?

I have attached a picture of the boiler layout.

thanks!

Tom

 

[Darren Jackson]

Hi Tom, your Gloworm has its own internal circulator pump and the ZRU of your UFH also has its own circulator pump. So you can have two separate zones by installing a motorised valve and a room thermostat. Just make sure you also include a differential automatic bypass as well and it won't blow up.

 

[Tom_B]

Hi Darren,

Thanks for your reply, so the differential bypass valve would go in just before the motor valve and bridge the flow and return pipes?

 

[Darren Jackson]

Correct.

 

[Tom_B]

Like this?

 

[Darren Jackson]

Yeah that's as good a place as any my friend.

 

[Tom_B]

Brilliant - thanks Darren, I guessed something like that would be necessary, your help is much appreciated.

 

[Darren Jackson]

Your welcome.