Greetings,

Neither electric nor gas motors are 100% efficient at converting electricity
or gas into mechanical energy. Electric motors are closer than gas motors
because gas motors give off more waste heat. In this case the "waste heat"
is usable so it isn't as much as a problem.

Hope this helps,
William


"toller" wrote in message
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"Joseph Meehan" wrote in message
...
toller wrote:
"Joseph Meehan" wrote in message
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William Deans wrote:
Greetings,

Who makes geothermal natural gas powered heat pumps? Does anyone
have any experience with an oil or natural gas powered heat pumps
(geothermal or otherwise)?

Thank you for your time and energy,

William

I had a friend who had a natural gas powered air conditioner, but
I doubt if it would pay to make it a heat pump. If you have natural
gas, just use it to heat the house in a forced air furnace.

"As I understand it" heat pumps are more than 100% efficient in
suitable climates. Since furnaces are not more than 93% efficient,
why wouldn't you use natural gas powered heat pumps?

You only get over 100% efficiency for electric power, not gas.

That would be true only if electric motors are significantly more
efficient
than gas motors. (and I haven't a clue if they are or not)