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House Temperature Dropping During a Cold Snap

I live in Massachusetts, my house is 112 years old and has a fieldstone foundation, and I have radiant heat on the first floor.  During a cold snap, where the temperatures dip into the teens, the first floor of my house has a hard time holding its temperature.  The heat is set to 64 degrees yet during the cold snap it can drop to 56 degrees within a couple days.  Any idea what causes this or how to fix it?  I'm not sure if my radiant system is not robust enough, if I need additional insulation, or if there's some other solution.



Re: House Temperature Dropping During a Cold Snap


That is a very open ended question. So many variables.

What kind of radiant heat? Water? Electric? Coolant? How many distinct circuits in the liquid lines do you have? Do you have holes in the foundation that you have not covered for winter? Foundation vents should be closed during the cold months.

If you have liquid and only 1 single circuit, then yes, the liquid will be cool by the time it makes it way back to be heated again. Depending on the size of the area the circuit is covering. If this is the case, you will need to create smaller circuits.

Start looking for things that will cool liquid quicker than it should, like long distance from beginning to end of the circuit, cold air coming in contact with the pipe, wrong type of pipe being used, wring size of the pipe being used, heat source being too small to heat a large area.

Like I stated, "it depends".


Handy Andy In Mt Airy NC

Re: House Temperature Dropping During a Cold Snap

Wow, lots of things to think of or I don't know.  Thanks for your assistance.

Radiant heat - water, gas powered

Distinct circuits/liquid lines - if the panel is any indication then 5

No holes in the foundation and I have no idea what foundation vents are

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