Venting question for a heatstar ng heater

[joshuakline]

This will be my first time hooking up a natural gas garage style heater and I have a few questions on how to vent it. This will be going in my mothers garage, she went to Home Depot and this is the stuff they gave her for venting it. They told her to hook the elbow to the back of the furnace then use the 36" pipe thru the wall.
We will be venting horizontally.
I am not sure how I attach the vent to the back of the heater, the elbow slides over the furnace vent just fine, but I'm assuming there has to be more to it than that, does it get high temp siliconed or screwed on? I think I am missing a piece but this is new to me, I would assume that there is some sort of adapter that mounts to the furnace then the elbow hooks to that.
I'm sure this is pretty simple to someone who has done this before. I am using Selkirk type b gas vent pipe from Home Depot. So if you know what I'm missing please send me a link so I can order it. I have a bunch of pictures I can upload too.

 

[joshuakline]

Here's the pics

 

[joshuakline]

I guess I can only do 1 at a time

 

[joshuakline]

Another

 

[joshuakline]

This is the elbow that they said should hook directly to the back of the heater.

 

[joshuakline]

Heater

 

[smalltown]

joshuakline I needed a Universal appliance adapter to connect pipe to the exhaust of my heater. There should be something similar mentioned in your owners manual. I just looked at the manual on line (page 6 section C) and you should be using CAT 3 pipe not and B vent pipe. I'm sure other will chime in.
I'd give Heatstar a call to verify.

 

[finn]

If that's B vent, you cannot use it to vent horizontally.

You'll need Class III vent pipes with the integral silicone gasket.

The code changed a couple of years ago, so B vent is now only allowed for vertical terminations.

 

[manwithtools]

You need to go to the heater manufactures website and download the most recent manual. I think you will find that B-vent is no longer allowed for horizontal applications. It's such a common thing for folks to say...just get some B-vent. Codes have changed, you will need Category III venting I'm sure. Check for yourself.

 

[joshuakline]

I'll try and find an up to date manual and see what it says. Thanks