register in garage

Cory Bates · 08-28-2014, 10:09 PM

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

**J Moore** · 08-28-2014, 10:23 PM

No, not into garage if origin is home

Cory Bates · 08-29-2014, 08:33 AM

heat.jpg
So this is not okay?

**Billy Stephens** · 08-29-2014, 09:38 AM

Originally Posted by Cory Bates

heat.jpg
So this is not okay?

Cory,
If it's combustion air for the furnace OK.

Not OK.
*doesn't matter if it's a supply or return. Possible for car exhaust to enter the conditioned

**Jack Feldmann** · 08-29-2014, 09:54 AM

That does not look like combustion air.
It looks like a return, and no its not allowed.

**Rick Cantrell** · 08-29-2014, 10:37 AM

Don't forget the sediment trap also.

**Ken Rowe** · 08-29-2014, 09:34 PM

Is it just me? Isn't that a downdraft furnace in the garage? Doesn't appear to be ductwork shared with the house. Looks like the furnace sits above the register. Cover for the furnace is in the lower right corner of the picture. Looks fine to me.

**Jim Luttrall** · 08-29-2014, 10:54 PM

It looks like a downdraft furnace with a register open to the garage but an establishing shot would be helpful.
Any conditioned air duct is not allowed to be open to the garage.

**Billy Stephens** · 08-30-2014, 05:50 AM

Originally Posted by Ken Rowe

Is it just me? Isn't that a downdraft furnace in the garage? Doesn't appear to be ductwork shared with the house. Looks like the furnace sits above the register. Cover for the furnace is in the lower right corner of the picture. Looks fine to me.

Or an updraft split system with a Goofy combustion air draw.

**Jerry Peck** · 08-30-2014, 10:45 AM

Is that duct board around the unit just there for looks (ugly looks, but still for looks) or is that the supply (or return) plenum?

If that is supply or return plenum, then the entire thing leaking air to the garage or sucking air from the garage.

**Jim Luttrall** · 08-30-2014, 01:20 PM

GARAGE DUCT INSTAllATION

R302.5.2 Duct penetration. Ducts in the garage and ducts penetrating the walls or ceilings separating the dwelling from the garage
shall be constructed of a minimum No. 26 gage (0.48 mm) sheet steel or other approved material and shall have no openings into the garage.

**Frazier Jeffery** · 10-02-2014, 11:09 AM

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

- - - Updated - - -

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

- - - Updated - - -

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

- - - Updated - - -

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

- - - Updated - - -

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

- - - Updated - - -

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

- - - Updated - - -

Originally Posted by Cory Bates

I am having a bad day and can't remember is it acceptable to have a heat register vent directly into the garage?

no only if 26 gage metal ducting to maintain fire envelope

**Jerry Peck** · 10-02-2014, 11:42 AM

Originally Posted by frazier jeffery

No only if it has all solid 26 gage sheet metal all the way back to the unit to maintain the fire envelope

Not even then.

The question was not about "duct work" in the garage, the question was about a supply register open to the garage.

NO supplies or intakes (returns) in a garage for a unit/system which is for the living space ... NONE.