When will guys read the install instructions.
Love how they just stubbed into the old double wall.This water heater requires proper venting or the water heaters
heat exchanger will clog up!!!!!You can not vent these straight up and can not increase the flue pipe size on the way out.
Poor little feller never had a chance with this brainac's venting
If you look at the installation instructions they clearly state that you cant vent them straight up as well as other things.