wow i must say thats pretty intense.its funny i was just telling some one on here yesterday about my 8 inch vortex straight pulling the duct tape off my old wall vents,i couldnt even get this shit off with my razor knife.gotta love the power
disrupt86 Reviewed by disrupt86 on . ventilation problems I ran into some problems recently with my furnace. It was smoking real bad when it shut off. The furnace is in the basement along with my bedroom and grow room. I assumed the 40 year old oil furnace finally gave up the ghost and after having 3 people check it I bought a new one. After complete installation the new one smoked. It turned out that my basement was to well sealed and the 8" vortex exhaust fan I am exhausting outside was not allowing the furnace to draw properly out the flue. I Rating: 5