Heatilator ,make up air question

[Brandon Whitmore]

First time seeing this...........

I have run into a strange Heatilator type fireplace (metal firebox) that has a make up air vent installed near the upper third of the firebox. I opened up the cover and the vent started pulling room air out. Has anyone ever seen a set- up like this? Does anyone know where I can go to see how this should be installed?

Thanks.

[David Bell]

Looks to me like a combustion air vent to firebox,,homade system by the looks of it,,I doubt it is up to code

[Brandon Whitmore]

Looks to me like a combustion air vent to firebox

Hi David, that's what it appears to be.
Problem is that the house was built in 1996, and the house received it's CO. I don't think that it's home made, but it's definitely an odd set up.

[Brandon Whitmore]

Has anyone even seen a fireplace set up like this before? (bump):confused: