Help with floor heat

[2Biz]

I have mine set to kick on at 32°. So, in theory, the slab will be warmer than outside air as the temperature drops. The heater should warm the slab from there. Does yours kick on by a T-stat based on outside air temp. I have mine set to come on using the secondary output on the weepmiser.

BTW..Glad you figured it out.

 

[slash007]

I have mine set to kick on at 32°. So, in theory, the slab will be warmer than outside air as the temperature drops. The heater should warm the slab from there. Does yours kick on by a T-stat based on outside air temp. I have mine set to come on using the secondary output on the weepmiser.

Mine does kick on based on outside air, just like the weepmiser.

 

[2Biz]

So, what temp do you have it set to come on?

 

[slash007]

So, what temp do you have it set to come on?

I have it set to come on at 34 degrees.

 

[2Biz]

Where is your temperature probe at? If its in one of the bays, it could be seeing a higher temperature than what the outside air temp is? I remember when I had my weepmiser sensor in the bay, It was sometimes off by 6° or more depending on how fast the temperature dropped. Moving the sensor to the north wall under the overhang solved all my temp sensor issues.

 

[cantbreak80]

Slash,

Happy to hear of your solution! Wishing I'd thought to suggest that possibility.

I suggest you have the gas pressure checked, along with flue gas temperature and combustion air…(have you ever felt light-headed while working in the engine room?)

Sooting of the tube bundle indicates low gas pressure, insufficient flue temperature resulting in flue condensation, low glycol return temperatures, and/or insufficient combustion air.

 

[slash007]

Slash,

Happy to hear of your solution! Wishing I'd thought to suggest that possibility.

I suggest you have the gas pressure checked, along with flue gas temperature and combustion air…(have you ever felt light-headed while working in the engine room?)

Sooting of the tube bundle indicates low gas pressure, insufficient flue temperature resulting in flue condensation, low glycol return temperatures, and/or insufficient combustion air.

I will check those out. Thanks again for all of your help!