Question: Installing new Dayton Heater

[lr172]

I just purchased a Dayton 200,000 BTU heater for my garage. I realize it is a bit big for my 3 car garage, but the price was right - only $75 bucks and it looks to be only a few years old and with electronic ignition.

It has an 8" flu (hoizontal) and I am wondering if I can reduce the size of the flue pipe to 6" or 7" as it exits the house. I am not famaliar with HVAC conventions and am struggling to find good data on the web.

Can anyone assist me?

Thanks.

 

[Franz©]

Reducing the flu without reducing the orphice size is a good way to load combustion product into your living space. Of course you could add a power vent kit, but in the end I think you'll be a lot happier using 8" flue.

 

[lr172]

Thanks for the reply. I wouldn't mind reducing the orifice size, as I do not need anywhere near 200,000 BTU. Is this difficult or expensive to do? Are parts available?

I believe the unit has a blower, as it is a horizontal discharge flu (I accidently mis-stated this in my original post).

 

[lr172]

Ok, I just found a manual and learned a bit more. It looks like it does not have a power vent, but does have a horizontal exit. The instructions call for connecting the horizontal exit to a vertical flue. I have no upward acccess out of my garage and must go through the side of the house. I have an option to keep this heater near (about 2') the exit wall. Can I just exit through this wall? Or do I need a powered fan to do this? If I can just exit out the wall, what kind of exit do I need? Will a standard "eyebrow type" work?

Thanks for all of your help.