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UFH Thermostat cable size?


wozza

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Hi All,

 

I need to run the thermostat cables for my UFH ready for Saturday when the fitter arrives to wire it all up and commission the system.

 

Is 1mm 3 core and earth suitable or should I use 1.5mm 3 core and earth.

 

The thermostats are Heatmiser Neostat V2

 

Thanks, Wozza.

 

 

Edited by wozza
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Hi All,

 

Thanks for the replies, the instructions are of no help, and I cannot find anything online.

 

I called the tech line today and asked if I should use 1mm or 1.5mm cable for the Neostat V2 and the chap said  "err 1.5", but he didn't sound very convincing. 

 

So I will use 1.5mm.

 

 

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Manual here...

https://www.heatmisershop.co.uk/heatmiser-neostat-v2-programmable-thermostat/

 

.suggests you need 3 core for a switched live system and 4 core cable if it's going to be a "volt free" system. See Page 29 and 30.

 

They also have a "Neohub" if you want to control it with an App.

Edited by Temp
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7 hours ago, Temp said:

Some Heatmiser stats are 12v and/or use network cable. I've not checked your one.

 

And there is a 12V version of the Heatmiser Neostat V2 so you do need to check which model you have..

 

https://www.heatmisershop.co.uk/heatmiser-neostat-12v-v2-programmable-thermostat/?gclid=CjwKCAiAob3vBRAUEiwAIbs5Tn-Te3MoMzR2y6z_2M3buhzhlOTLZfSWAQc0voIdEAtiZSmLUu5c9BoCNoQQAvD_BwE

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