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Re: GSBN:HRVs and SB
--On Friday, January 24, 2003 7:54 AM -0500 Paul Lacinski
So now that I've gone in a bit of a circle about that, I will
disagress with Derek's assertion that "current heat recovery
ventilation systems are primitive and expensive." They are
somewhat expensive, but I would certainly not call them primitive.
I appreciate Paul's comments and the misleading nature of my earlier
unqualified assertion. From a practical point of view, current HRV
systems are pretty impressive in recovering 70% of the heat. And
averaged over the life of the home, their value to health is high and
their cost is small.
What I had in mind when I wrote before was comparing current HRVs to
what we will see in the market very soon, after use has become high
enough to drive research, innovation and competition on a much larger
scale. I think that within five years, we will see large increases
in efficiency, combined with large drops in price and easier/better
installation protocols. "Primitive" doesn't always mean bad, but I
expect to see a lot of improvement and optimization in HRV systems.
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