High Efficiency Furnace intake pipe does not go outside. Is that OK?

Posted by on March 3, 2006, 9:43 am

Hi everybody,
I have just installed new High Efficiency furnace (Keeprite). In the
manual 2 pipes are depicted (Exhaust and intake) running outside of the
house. However, the installer has left the intake pipe inside of the
basement (the pipe is about 20 inches long above the furnace). He says
it's OK to have an intake pipe to suck the air from within the
basement. Is it?

Thanks a lot!

Viktor

Posted by Don Phillipson on March 3, 2006, 10:17 am

> I have just installed new High Efficiency furnace (Keeprite). In the
> manual 2 pipes are depicted (Exhaust and intake) running outside of the
> house. However, the installer has left the intake pipe inside of the
> basement (the pipe is about 20 inches long above the furnace). He says
> it's OK to have an intake pipe to suck the air from within the basement.

Is it?

City Hall may be able to advise. The Ontario
housing code was changed about 25 years ago
to require outside air for furnace supply. This is
usually done by piercing a four-inch hole through
the foundation or wall, and fitting an insulated
trunk which hangs down to near floor level.

--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)

Posted by Goedjn on March 3, 2006, 12:47 pm

On Fri, 3 Mar 2006 10:17:03 -0500, "Don Phillipson"

>> I have just installed new High Efficiency furnace (Keeprite). In the
>> manual 2 pipes are depicted (Exhaust and intake) running outside of the
>> house. However, the installer has left the intake pipe inside of the
>> basement (the pipe is about 20 inches long above the furnace). He says
>> it's OK to have an intake pipe to suck the air from within the basement.

>Is it?

Probably not. The point of an intake pipe, instead of just a grill,
is that your combustion air doesn't come from the house.

Posted by m Ransley on March 3, 2006, 1:14 pm

You hired a hack, the efficiency rating specified won`t be met with
indoor air since you are pulling in cold makup air. Indoor air
pollutants actualy shorten the coils life, your warranty may in fact be
void with indoor air. Demand he fix it and stop payment. If he screwed
that up who knows what else, he just wanted to save time from drilling a
hole. Make sure he has the proper install on the intake -exuast, read
your manual.

Posted by Bubba on March 3, 2006, 5:24 pm

On Fri, 3 Mar 2006 12:14:33 -0600, ransley@webtv.net (m Ransley)
wrote:

>You hired a hack, the efficiency rating specified won`t be met with
>indoor air since you are pulling in cold makup air. Indoor air
>pollutants actualy shorten the coils life, your warranty may in fact be
>void with indoor air. Demand he fix it and stop payment. If he screwed
>that up who knows what else, he just wanted to save time from drilling a
>hole. Make sure he has the proper install on the intake -exuast, read
>your manual.

Yes, he hired a hack and got exactly what he paid
for...........nothing more, nothing less. Thought it was such a great
deal and now found out it wasnt.
If he wants a second pipe outside he can open his wallet and pay for
it.
Bubba

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