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Old 11-01-2005, 10:43 AM
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Originally Posted by Brian Carlton
Something is not right. Are you stating that the house dropped three degrees in six hours, without any furnace in operation, with an ambient of -6°F?

Either you have some unbelievable insulation in that house or there is some truth being stretched. 2 x 6 walls with R-19 would not be able to hold a house to a .5°/hour temperature drop at -6°F. ambient.

In fact, at this temperature, the average 2,000 sq. ft. house in MI would be sucking down somewhere around 70,000 BTU/hr. If you are losing 70,000 BTU/hr, the house is going to drop by much more than .5° per hour.
the appliances, lights generate heat plus the material in the house holds heat like the concrete basement walls, drywall, insualtion, even the couch.

The heating/insulation tech even commented that it should a a degree less than that.
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