sparky2436
New member
Hello everyone - I am a brand new member looking for advice in helping my son install a Big Maxx 50K BTU natural gas unit.
My main question appears to be a common question running through a lot of these posts - making the connection to the furnace flue outlet. I have gone through most of them - but I am not finding the exact response I am looking for.
The furnace flue outlet is just shy of 4" OD with three (3) pre-drilled holes spaced approximately 120 degrees apart.
We are planning to run 4" vertical B-Vent. We purchased a 4" draft hood connector which fits over the factory installed flue connection. I assume we want the draft hood connection to fit OVER the factory flue connection - is this correct?
I also assume we would need to try to match up the hole locations or drill three (3) new holes through both the factory flue connection and the draft hood connection?
I was planning to install 3 - #8 self-tapping stainless screws for this connection to the heater.
Is any hi-temp sealant required or recommended on these screws?
Any advice and recommendations on your experiences that you could provide would be greatly appreciated. See attached photos. Thank you.
My main question appears to be a common question running through a lot of these posts - making the connection to the furnace flue outlet. I have gone through most of them - but I am not finding the exact response I am looking for.
The furnace flue outlet is just shy of 4" OD with three (3) pre-drilled holes spaced approximately 120 degrees apart.
We are planning to run 4" vertical B-Vent. We purchased a 4" draft hood connector which fits over the factory installed flue connection. I assume we want the draft hood connection to fit OVER the factory flue connection - is this correct?
I also assume we would need to try to match up the hole locations or drill three (3) new holes through both the factory flue connection and the draft hood connection?
I was planning to install 3 - #8 self-tapping stainless screws for this connection to the heater.
Is any hi-temp sealant required or recommended on these screws?
Any advice and recommendations on your experiences that you could provide would be greatly appreciated. See attached photos. Thank you.
