It's probably useful to take a broad look at the efficiency of electric 
heat.  Considering that running a coal generator is only slightly above 30% 
efficiency, hence throwing away 70%.  Then considering the line loss between 
the generator plant and your home, which is often discussed as around 10%. 
Then to further discuss the inefficiency of electrical resistance heating, 
which, I understand is only about 35%, then the whole picture of electrical 
heating fuel waste comes into perspective.

Geoff
----- Original Message ----- 
From: "Scott Howell" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, August 27, 2007 6:16 PM
Subject: Re: [BlindHandyMan] What Do You Want Information ON?


So, lets add anothr question to this. Does it make sense to lower the
temp at night in the home or leave it set at the same temp day and
night? The thought is by lowering it 3 to 4 degrees at night while
your asleep, it would run less, but then if the heatpump has to fire
up the backup heat source which is likely electric itself and run at
the same time to raise the temp up the 3 to 4 degrees, have you really
saved anything.

Scott
[EMAIL PROTECTED]



On Aug 27, 2007, at 11:21 AM, Dan Rossi wrote:

> Actually, I think that a heat pump is supposed to be more efficient
> than
> just straight electric heat, but not exactly sure how it works out
> that
> way.
>
> -- 
> Blue skies.
> Dan Rossi
> Carnegie Mellon University.
> E-Mail: [EMAIL PROTECTED]
> Tel: (412) 268-9081
>
>



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http://www.jaws-users.com/handyman/

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