(tflfb) writes:
Need to replace my central air unit, I am considering a Trane heat pump not
sure on how to go about figureing out if or what the saveing will be.

After 750 KWatts of useage the rate per KW is 2.98 per KW.

There calling for a 20% increase in natural gas this yr, in my area.

I have a natural gas furnace, live in the midwest ( eastern Ne).
Tom.

You need to talk to a *good* HVAC contractor. The local contractor's
organization has done all those calcs and has all that info, but you need
to find somebody who goes to the meetings and stays awake.

--
http://home.teleport.com/~larryc

"tflfb" wrote in message ...
Need to replace my central air unit, I am considering a Trane heat pump not
sure on how to go about figureing out if or what the saveing will be.

After 750 KWatts of useage the rate per KW is 2.98 per KW.

There calling for a 20% increase in natural gas this yr, in my area.

I have a natural gas furnace, live in the midwest ( eastern Ne).
Tom.

Hi, Tom.

First, you're not billed per KW. Kilowatt a _rate_ of energy
transfer. You pay by KW-hour. One KW-hour is 3412.14 ... BTU.

A heat pump has a coefficient of performance, say 3.2, at a given set
of high and low reservoir temps, which means that it's delivering to
the load 3.2 times the energy received from the power line. IOW, it's
the BTU/hr / Watts * 3.412.

Make sure the temps are clearly specified for the COP tests.

For gas, you pay by CCF or therm, both averaging about 100K BTU,
depending on the actual gas mix. You might pay ~$1/therm.

Now you have all the info you need to figure costs. And ... $2.98 per
KW-h is insane- the equivalent of $150/gal of #2 fuel-oil. Time to
hit the books.

HTH,
John

Heat pump formula

Group: alt.home.repair Date: Wed, Jul 2, 2003, 6:01am (EDT-1) From:
(tflfb)
Need to replace my central air unit, I am considering a Trane heat pump
not sure on how to go about figureing out if or what the saveing will
be.
After 750 KWatts of useage the rate per KW is 2.98 per KW.
There calling for a 20% increase in natural gas this yr, in my area.
I have a natural gas furnace, live in the midwest ( eastern Ne). Tom.

+++++++++++++++++

John wrote:

What is the KWH rate to 750?
What do you pay for NG now?