Re: Gas Furnace Inflow Question


"CWLee" <cdubyalee@xxxxxxxxxxxxxxxx> wrote in message
news:W%vRe.32$mz3.22243@xxxxxxxxxxxxxxxxxx
>
> "SQLit" <sqlit@xxxxxxxxx> wrote:
>
> > There are several legal ways to vent a gas appliance.
>
> I may not have expressed myself clearly, or perhaps I don't
> understand what you mean by venting, but the situation I'm
> talking about is the air to be heated and circulated through
> the house. The issue is whether that incoming air should
> remain a mixture of inside and outside air, or whether it is
> better to use only inside air.
>
> He also wrote:
>
> > I would not have the heater using inside air for
> combustion. It
> > is legal and is the way it was done for a long time, when
> gas was cheap. For
> > me it defeats the purpose of the heater. Moving all that
> air from inside the
> > house then replacing it with cold air.
>
> Sorry, but I'm having trouble understanding what is meant
> here. I'm not talking about the air used for combustion,
> but the air to be heated and circulated through the house.
> The savings in dollars the gas company representative had in
> mind was from NOT heating up cold outside air but rather
> heating the inside air, which would be at a higher temp than
> the outside air, and thus require less gas to increase its
> temp to the desired level.
>
> He also wrote:
>
> > Properly sized vents to the outside
> > would allow you to pressurize your home (slightly) and
> keep the chances of
> > Carbon monoxide in the furnace room. Not where you
> breathe.
>
> I assume it is already properly vented, since it has passed
> several inspections by those familiar with local building
> codes. I futher assume that the gas company representative
> would not be suggesting something that would result in an
> improperly vented furnace. As I understand the concept of
> venting, it is a means to draw off the carbon monoxide and
> other undesireable fumes so they are expelled to the
> outside, and not circulated into the house. The gas
> comopany representative did a "venting test" and told me
> that the fumes were going just where they were supposed to
> go, up the vent and through the roof.
>
> Pehaps you can clarify what you meant after reading my
> comments.
>
> Thanks.
>
> =======================
>
> in message news:zFuRe.55$k21.8276@xxxxxxxxxxxxxxxxxx
> >
> > "CWLee" <cdubyalee@xxxxxxxxxxxxxxxx> wrote in message
> > news:1yqRe.31$mz3.19892@xxxxxxxxxxxxxxxxxx
> > >
> > > My gas furnace continues to work well, as it has for 25
> > > years. The air intake to it is from an enclosed space
> below
> > > the furnace which in turn has a screened opening (12" x
> > > 18"?) into my living room about 1 foot off the floor.
> That
> > > space also has a small opening (4" x 6"?) to the outside
> of
> > > the house. Thus the cooler air from the living room,
> mixed
> > > with some air from the outside, is sucked into the
> furnace,
> > > heated, and sent out through the vent system.
> > >
> > > I just had my home fumigated, and when the gas company
> > > technician was turning the gas back on, and lighting the
> > > furnace pilot, he suggested that I close off the small
> > > opening to the outside. He said it would prevent
> rodents
> > > from entering the house, and would decrease my gas bill
> by a
> > > small amount.
> > >
> > > This small opening to the outside was purposefully
> placed
> > > there, along with a rain shield on the outside, by the
> > > builder of this group of tract houses. The home is on a
> > > concrete slab.
> > >
> > > Any safety or other reasons NOT to close off this
> opening,
> > > as the gas company representative suggested? In case
> > > climate is relevant, I live in the greater Los Angeles
> area.
> > >
> > > Thanks.
> >
> > There are several legal ways to vent a gas appliance. I
> suggest that you
> > check with the local authorities about any changes your
> planning. Now days
> > the Plumbing code requires 2 vents one high and one low.
> My water heater
> > can draw air from the outside and the attic.
> >
> > Personally I would not have the heater using inside air
> for combustion. It
> > is legal and is the way it was done for a long time, when
> gas was cheap. For
> > me it defeats the purpose of the heater. Moving all that
> air from inside the
> > house then replacing it with cold air. Properly sized ven
> ts to the outside
> > would allow you to pressurize your home (slightly) and
> keep the chances of
> > Carbon monoxide in the furnace room. Not where you
> breathe.

Contact a licensed professional heating company and ask them. Anything more
I say will probably be misunderstood and I can not see the installation.


.

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