gas furnace venting

[Grant Harrod]

why would an HVAC contractor vent the exhaust flue into a turbine vent in the attic, looked pretty dangerous to me. Tell me if I am wrong, but I told the client the vent needs to be thru the roof with proper roof flashing and vent cover. Need input here.

[Billy Stephens]

why would an HVAC contractor vent the exhaust flue into a turbine vent in the attic,

Stupidity, Lazy, Didn't Have the Correct Materials On Hand and It's Quitting Time ? :confused:
.

looked pretty dangerous to me.
.
Yup.
.

Tell me if I am wrong, but I told the client the vent needs to be thru the roof with proper roof flashing and vent cover.
.
Correct.
.

Need input here.
.
Stay Tuned. :D

[Darren Miller]

Maybe that's the HVAC's version of 'Fan assisted'?

[neal lewis]

Grant,

There's a wealth of information about this to be found reading through furnace manufacturer installation instructions and B vent installation instructions. Not as fun as a novel, but required reading for any home inspector. Scary...

Darren, the answer is right under your nose...Stupidity