Venting a Water Heater

[OffWithTheirHeads]

2. Please don't do this. If done improperly this CAN KILL YOU!

Believe it or not, most building codes were developed for a reason and venting gas appliances are high on the list. If you don't know what you are doing and why, please spend a few dollars and let a trained professional do this for you. If you can afford a 99% furnace, you can afford to have this done correctly. You are correct with the double wall pipe (type B gas vent) but if you don't understand the codes as to clearances from windows, the roofline, etc. you are asking for trouble.

At least take the time to study the documentation that should have come with the water heater. By the way, the cost of the correct equipment for power venting is EXPEN$IVE! It will cost you less to hire a pro to install the gas vent properly than to buy the power venting equipment.

Trust me, I spent 43 years of my life doing this stuff.

Wether you get an inspection or not is irrelevent but if you are not experienced with the installation of type B gas vent, the time and money and frustration you will encounter will not be worth what you think you are saveing.

If you need more info, pm me. I don't want to read here about a DUer who died of carbon monoxide poisening.
Bud