I wouldn't believe that guy the Next time he lied to you either. <g>
Locking the electric coils out so long as the heat pump can do the job is a pretty standard thermostat feature.
BTW: Do not let them install a "night setback" type thermostat. To get the best performance and economy-of-operation out of that heat pump system you want to pick a temperature that you like and then Never Change It.
PHM
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Originally Posted by
Indecive
I got another estimate for a new all electric heat pump and air handler. He said his company uses a special thermostat, that his company has a patent on, that allows the heat pump to not use the electric coils till the temperature outside fall below about 24 degrees. And he says no other company can achieve this even though its a standard brand (Lennox).
Is this true? And if it it is, why can't other companies not use the coils when the temperature outside falls below about 36 degrees? By the coils, I mean the auxiliary heat or whatever it is called.
Thanks for your time
PHM
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When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.