Thanks for all that info...I been reading the code booke and it's deficult to understand lot of these rules but you make it soo simple. Thank you so much for this nice detailed video.

The best explanation! Thank you so much 👏

Hey ken question. I had a induced draft furnace and then a. 75gal water heater. Water heater was spilling. They ran 4” off the wh but then went to 3” chimney liner only to the bottom of the chimney just sitting in there. Furnace cause of the inducer was venting but the water heater won’t vent.