Big Maxx venting

[sperkins]

Santa Claus finally brought me a shop heater - 75k Big Maxx.
I want to vent it horizontally through the wall, but on the other side of said wall is the deck to my house. The vent will be approximately 18" below the joists of the deck. I don't have any other venting options since the rest of the shop has poured concrete walls and directly above is the house. The manual only states that there is a 12" minimum protrusion through the wall.
Is this ok?

 

[icefisherman]

I dont think that would work. You will have a lot of frost from the exhaust under the deck for one thing. Could you rent a hole saw for drilling through concrete and locate it somewhere else?

 

[rickairmedic]

How Big is the Deck . The only option I can think of would be to run Double Wall/B-vent all the way out to the edge of the deck . I dont have my code books in front of me at the moment but I can tell you by code you cant vent it directly under the deck .


Rick

 

[redsky49]

The operable window would also prohibit you from discharging the exhaust at this location.

Verify the distance and the number of fittings that your unit's manufacturer allows for venting and re-think this.

As always. offered only as opinion

 

[sperkins]

Could you rent a hole saw for drilling through concrete and locate it somewhere else?

Unfortunately not. The shop (basement) is underground on 3 of the 4 corners.
The only other option I have is to use more piping to go around a corner to get away from the deck. The problem that brings is that the vent for the dryer is there. I could not get 6 feet away from it as specified in the manual.

Anyone want to buy a heater?

 

[Speed-Racer]

Cut a 3in hole in the deck and run the vertical pipe straight up. Wood is easier and less expensive to cut than concrete. You could build something around the pipe on the deck to camouflage the exhaust vent.

 

[redsky49]

I had thoughts similar to Speed-Racer. Don't throw in the towel. Just do some creative thinking.

First, determine exactly how far you will be able to extend the flue.

My initial inclination was to suspend the (4"?) tubing from the bottom of the deck. Extend horizontally, maintaining the proper clearances from any combustibles, out to the far corner of the deck. At this point elbow up thru the deck. Extend the flue and terminate with weather cap at 8'-0" above deck. Enclose the flue within a decorative wooden column.

I would likely provide a matching column at the opposite corner. Mount some low sconces on the columns for general deck illumination, or even string some party lights between the columns. Maybe even mount some hangers for plants or bird feeders.

If you go such a route, I would recommend SS tubing rather than galvanized.

Here is a good source for flue materials:

http://www.selkirkcorp.com/products/venting.aspx

Be sure to get any required approvals from your local authority prior to construction.

Good luck with your project. I am sure you will discover some inventive way to make your install.

As always, offered only as opinion