Dangerous vent

Whoever installed that

must have been on crack. Installing a reducer isn't exactly rocket science.....

"Steamhead"

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"

Not rocket science?

Are you saying, Frank, that the installer was no Werner von Braun?

Thought so..

Add to that the open seam looking upstream where top-flowing flue gasses will surely leak out (presuming the view is upstream of course).

Its a second draft hood:-)

I'm sure its no joke, you should see some of the things my uncle has done(like galvanized reducer so he could re-use the t&p vlave from the old water ehater instead of installing a new one that was 3/4" and not corroded shut instead of 1/2").. I guess a trip to the hardware store is too hard for some people.

or use...

Reynolds Aluminum foil....kpc

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"

How About

The flex aluminum dryer vent used as vent for water heater; just open the attic access hatch and pinch it in there so it can't fall back down. This is in a closet in a sleeping room. Or you can break a hole in a 4" cast iron vent stack, run about 30 feet of 3" water heater vent connector flat horizontal and shove it in there and caulk it with painters caulk. Both of these were in the same house. And the occupants were STILL ALIVE.