Underfloor Heating Pump With Wireless Thermostat

[bps]

Hi

I am instaling an underfloor wet heating system (single pump with mixer valve) in my conservatory and want to use a wireless programmable thermostat eg Solus RT500RF or Heatmiser PRT-W to connnect to my gas boiler at the other side of the house to save wiring across the house. My question is can i connect a wired connection from the wireless transmitter to my underfloor pump in the conservatory so that this pump switches on at the same time as my boiler switches on? Anyone suggest a wireless thermostat with a wired output for local connection to switch the pump on. PS. My pump came with a wired non-programmable thermostat which i assume i just need to disconnect and use the same wires to connect to the wireless thermostat if we can.  thanks for inputs

 

[ProDave]

To start with, UFH performs so differently to radiators that you do NOT want it running at the same time as the radiators in the rest of the house.

Install a dedicated timer / thermostat for the conservatory (which could just be a programmable thermostat) to control that completely independent of the other heating.  Then wire the "call for heat" contacts from the manifold controller in parallel with the other call to heat signals to bring the boiler and pump on.

you may need to introduce some new motorised valves or alter what;s there so you can have each heating source operating independently.

 

[bps]

thanks dave - yes i plan to connect it as a separate circuit to the rad circuit for the rest of the house, with a separate dedicated thermostat and a dedicated motorised valve at the boiler for the UFH circuit.

But I assume that I still need the UFH pump at the conservatory end by the mixer valve so that when the thermostat demands the underfloor to switch on the boiler and motorised valve turns on simultaneously with the UFH pump in the conservatory. So whilst I could try and run a wire from the conservatory thermostat to both the boiler valve and UFH pump in parallel, I was wondering if I could use a wireless thermostat to signal the boiler valve and a hard wire the thermostat to the ufh pump. This would save lifting carpets and floors etc to run a wire across the house.  

 

[ProDave]

I see what you are getting at.

What you are suggesting is make a "wireless link" out of a wireless thermostat.

Yes I am sure you could do that with some bu99ering about, but it's certainly not a standard application.

You have to run the pipework, so is it not just as easy to run a cable at the same time?

 

[steptoe]

You could use 2 receivers, one at boiler end, one at manifold end,

That would be the easiest way of doing it I'd guess at if you really don't want to wire it back to boiler,

Not sure how that goes into using different supplies though,,,,,   :|  

 

[bps]

yes ideally trying to get a wired link out of a wireless heatmiser prt-w thermostat

heat pipes already in place but no wires