First floor loosing heat at night


Old 01-29-03, 12:02 PM
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First floor loosing heat at night

We have 2 zones of forced hot water. When we wake up in the morning the first floor is 60 degrees. When we go to bed it is at 70 degrees. Replaced thermostat and still no change. Bled the lines to get air out and still gets cold at night. Just had the boiler serviced. Why won't the system maintain the heat at night??Thx
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Old 01-29-03, 04:27 PM
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Location: Easton, PA
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Is it possible that in this cold weather, when the temp outside is lowest, that the amount of radiation you have is not enough? Otherwise, night and day doesn't seem to matter.

What kind of zoning? Valves or circs? I have a few ideas but need that info.

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