Slab sensor

Dave_49

Do I need a sensor in the slab? I am putting an addition on my house with radiation in the slab. The room will get very little solar gain, but will have a gas fireplace. I am wondering the best way to control the slab. I am thinking the fire place will mostly be used before the slab is fired up in the fall and after it is shut down in the spring. Can I control the slab with t-stats in the rooms? The slab will be two zones (living rm, and mud rm.)If I go with in slab sensors I assume I would need one for each zone. If I do go this route what is the best way to do this? Can I run some 1" conduit out into the slab, and then fish the sensor out after the pour?

hot_rod

It's nice to have

that sensor input. Some thermostats allow both air and slab sensing for fine tuning.

Typically a piece of 1/2" pex is fine for a sensor well. I like to add a piece of copper with a cap at the end for better conductivity to the slab.

Don't position it too close to the heating tube, mid way between the tubes if possible.

hr