heat pump

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One thing to keep in mind, modern heat pumps have an outdoor thermostat to shut the pump off at temperatures below 40 F. It just can't pull enough heat out of the air to heat your home. Then you're on "makeup" heat, whatever it is that you're using, gas or electric.

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Hi rj, hope you are having a nice day
On 24-Jan-04 At About 15:16:19, rj wrote to All Subject: Re: heat pump
r> One thing to keep in mind, modern heat pumps have an outdoor r> thermostat to shut the pump off at temperatures below 40 F.
This is not quite true. with most systems the heat pump outdoor unit runs constantly unless you have gas fired or oil backup.
r> It just r> can't pull enough heat out of the air to heat your home. Then r> you're on "makeup" heat,
the second stage cycles to maintain the temp usually about 4 or so degrees below setpoint.
-=> HvacTech2 <=-
.. "Things don't bug you if you don't think about them." -- Calvin
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