Hybrid Car – More Fun with Less Gas


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Posted by nicksanspam on January 26, 2007, 10:17 am

1. This is off-topic for alt.solar.thermal.

2. What's a kw/day? :-)


Posted by Paul M. Eldridge on January 26, 2007, 5:08 pm
Hi Louis,

It's a terrific product.  Congratulations.

If I may note one correction.  According to the manufacturer's sales
brochure (and service manual), the lower temperature range for this
heat pump is +5F (-15C), not -4F (-20C) as you had indicated.  


This appears to be true of the 24RLQ, its replacement.

If your unit continues to operate down to -8F (-22C), the little guy
is performing exceptionally well, indeed.

My Friedrich (ne Fujitsu) is half the size of yours and meets about
80 per cent of my home's total heating requirements, but below -10C it
basically calls it a day.  This latest generation of Fujitsu heat
pumps operate at much colder temperatures and with far greater
efficiency at the lower end of the temperature band.  In the past year
alone, the improvement in performance has been rather remarkable.


On Fri, 26 Jan 2007 00:41:17 -0500, Louis Geoffroy

Posted by nicksanspam on January 26, 2007, 5:32 pm
 This is off-topic for alt.solar.thermal...

Posted by Paul M. Eldridge on January 26, 2007, 5:41 pm
 Hi Nick,

I beg to differ. The OP asked us if an air-source heat pump might help
meet his needs and we're offering our respective opinions.



On 26 Jan 2007 12:32:51 -0500, nicksanspam@ece.villanova.edu wrote:

Posted by Louis Geoffroy on January 27, 2007, 4:11 am
 On Fri, 26 Jan 2007 17:08:04 GMT, Paul M. Eldridge

    Hi Paul
    Yes in did, in the sale brochure it's at +5F. But in the
service instruction manual (page 05-20) it do indicate a cutoff at
And in practice it's at -8F,  The sales department did had a number,
the maintenance department a other, and the programmer still a other.
Go figure which is good :)



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