Home>Discussions>INSULATION & HVAC>Air coming out vents in side of furnace in basement
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a2mamaboose
Air coming out vents in side of furnace in basement

I have a Bryant HVAC unit in my 1996 unfinished basement. There is a threaded hole in the front of the unit where cold air rushes out when the AC is on. There is also a vent on the side of the unit where heat and AC come out when unit is running. This seems a very inefficient use of resources.

I am also considering taking the whole house humidifier off completely as the water runs constantly and I apparently have no way of turning it off. Turned the shut off valve to no avail. Hmmm.

Any information here is welcomed!

dj1
Re: Air coming out vents in side of furnace in basement

If you have a hole in the front of your unit that allows cold air to escape - plug it. You can use duct tape or aluminum tape for that.

Why do you run the humidifier and then run the a/c at the same time? I don't get that part of your question.

HoustonRemodeler
Re: Air coming out vents in side of furnace in basement

A basic barometer will tell you the relative humidity in your home. Take readings a few times a day

This will tell you if you need the humidifier or not.

Sounds like the controller for the humidifier is broken.

I'd consider hooking the humidifier up to an electronic barometer.

ed21
Re: Air coming out vents in side of furnace in basement

There is no need for a humidifier when the a/c is running. It's only used when the heat is on. The a/spends a lot of time removing moisture from the air. No need to put it back.
If the valve won't shut off then it needs replacing. It sounds like the humidifier needs servicing. Where does the water go if it keeps running. I've never seen a humidifier with an overflow, but I'm not real familiar with them.

a2mamaboose
Re: Air coming out vents in side of furnace in basement

Thanks for all of your help so far. The humidifier continuously ran. I believe the solanoid valve was bad. So, I actually ended up disconnecting the humidifier altogether. Even though it ran continuously, it never seemed to add enough moisture. We would run a separate unit upstairs in the winter. So, the humidifier issue has been solved.

The AC/furnace unit has multiple outlets for the air to escape other than the actual ductwork. There is a hole near the drip pan drain line location. Looks like a possible overflow drip pan drain line. Cold air just flows out of it when the AC is on. There is also a vent on the side of the whole unit where air spills out of. Hot when furnace is on, and cold when AC is on. Not sure of the purpose of this vent. Looks like a register mounted on side of the unit. Our basement is half finished, so maybe it's to help heat that side of the basement? It's not necessary if that's the case. I have it sealed so I'm just hoping that isn't a mistake.

Fencepost
Re: Air coming out vents in side of furnace in basement
HoustonRemodeler wrote:

A basic barometer will tell you the relative humidity in your home.

Hygrometer. A barometer measures air pressure. A hygrometer measures humidity.

I know you're not ignorant, so I'll just chalk up this little error to a brain fart.

Many weather stations include a barometer, hygrometer, and a thermometer. Some also include a chronometer and an anemometer, but it's unlikely you'll see one with a speedometer, odometer, tachometer, inclinometer, interferometer, spectrometer, or magnetometer. By now your bullspitometer is probably rising.

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