What I have, and what I think Phil has, is a direct vent propane
heater. They make them for natural gas too, if you have that. The heater
resides completely inside the shop. Only a round vent extends through the
wall. This same vent sucks in combustion air, and vents exhaust. The
combustion chamber is then completely sealed from room air. Room air is
blown over the chamber, and heated by the hot metal. It is then sent out
into the room, making everything nice and toasty. Note, combustion, flame,
etc all take place inside the combustion chamber, inside the heater, which
is inside the shop. Because it is sealed from shop air and instead
directly vented to outside air, it is "schematically" outside as Phil put
it. It is in fact actually physically inside. Mine is made by
Empire. I've been real happy with it.
At 01:55 PM 11/7/02 -0700, Ralph Forsythe wrote:
>I like that idea as well. So let's say I have one of those propane
>heaters and would like to keep it outside the garage (have the perfect
>place for it), how would I get the heat back into the garage safely and
>efficiently? Do I need a blower of some kind, ductwork, ???
>Or are you talking about something completely different?
>On Thu, 7 Nov 2002 firstname.lastname@example.org wrote:
> > >Some day, when I buy a larger house and get a big garage (i.e. shop),
> > >bigger than the 2-carI have now, I want to get one of those overhead ones
> > >with the shiny duct (radiant heaters of some kind, not sure how they work)
> > >that runs the length of the celing, those work very well and don't carry
> > >the risk of catching particulates like paint and sawdust on fire AFAIK.
> > There is no such risk with a decent through-the-wall heater like
> mine. I like
> > having the combustion intake, flame, and exhaust all schematically
> OUTside the
> > shop.
> > Phil Ethier
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