Frozen Heat System?

[char]

This sounds odd I know.

The power went out the other day in our little section of Bozeman and I think it screwed up our heat system. I had to reset it the other day and things went back to normal. After last night the temp in the house is down to 52 even with the thermostat set at 70.

The heating unit is in the crawlspace and it apparently heats a liquid (water?) which is sent by plastic tubing to the various baseboard looking things around the house. (I moved into this place 4 weeks ago and have no idea if it is heated electrically or by gas.)

I can hear the heater running but no heat is coming out of the baseboards so I'm thinking something is frozen somewhere.

What is the liquid in the tubing and at what temperature will it freeze? What the hell is going on here?

[RobT]

It should be a water glycol mixture. Freezing temp should be cold 0 F or so for interior system. That is all "should's" though, it's hard to say.

I'd say something else is probably going on. Maybe a stuck valve, bad pump, air in lines.

Rob

[splat]

Either the pulse pump went out or someone put water in the lines instead of glycol.

[char]

I've got the heating guy crawling around the house as we speak so I guess I should know soon.

Way below 0F lately so if could have frozen. We'll see.