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Posted by Jeremy Parker on March 8, 2009, 4:14 pm
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> I'm doing a grant application. There are two separate
> requirements.
> One requirement is that we "weatherization" to homes including all
> of
> the normal stuff -- fix leaks around windows, blow in insulation,
> etc.
> etc. Basically we need to wrap the house up a good as possible
> within
> budget constraints.
> The second requirement is for "green" which wants 15 cubic feet per
> minute of fresh air per occupant. To me that seems like a lot.
> For a
> family of 5, it would be the equivalent of running a 80 cf exhaust
> fan
> 24/7. Just how "green" is it if you have to heat that much air --
> and
> air-to-air heat exchangers are pretty much out of the budget.
I don't know about the details, but the conventional solution is to
use a heat exchanger. To heat the cold air coming in, you use the
warm exhaust air going out. There is, or at least used to be, some
ecology place on Cape Cod that knows about such things. Failing
that, there's another such place here in Britain, in mid Wales
somewhere, who might also be able to give advice
Good luck
Jeremy Parker
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> requirements.
> One requirement is that we "weatherization" to homes including all
> of
> the normal stuff -- fix leaks around windows, blow in insulation,
> etc.
> etc. Basically we need to wrap the house up a good as possible
> within
> budget constraints.
> The second requirement is for "green" which wants 15 cubic feet per
> minute of fresh air per occupant. To me that seems like a lot.
> For a
> family of 5, it would be the equivalent of running a 80 cf exhaust
> fan
> 24/7. Just how "green" is it if you have to heat that much air --
> and
> air-to-air heat exchangers are pretty much out of the budget.