Help with install

I have Keystoker direct vent burner that I a installing. All went well until I tried to fit the stainless steel elbow pipe into the exhaust air tube. It seems to be the same size and I cannot connect them. Any ideas ?

Well, let's see,they are both either males or females.

I'm going to guess they're both females, so you would need a short coupler w/ both ends crimped into male ends.

If it is the other, you guessed it, you need a short piece of straight stove pipe to accept the 2 males.

Sheet-metal shops have a hand cranked or machine to roll the pipe and crimp it into a male end. You may want to enlist them for help...the stainless is a little tougher than the steel, but still easily done w/ the machine/crank.

adram, post a pix or 2 so we can see what you've got there.Where ya from??

What kind of pipe are you using? you need to make sure you seal it good at all joints and elbows, since it is pressurized.

I found a crimper tool at Lowes a couple of years ago for about $25. It takes a minuute or two to crimp all the way around a 6" pipe, but it works great.