B-Vent question
In-laws water heater died. Guy red tagged the furnace when he came as the furnace and water heater are mid/low efficiency and use B-vent. They are tied in to the same vent, but from each appliance is normal piping into a Y that then goes to B-Vent. They told him to call the furnace installers (from 1999) to fix it, but they say they did it to code from 1999.
I have a garage furnace (tagged by a gas installer) and he said I could do some normal piping but once i got going through walls or ceilings I needed proper B-vent stuff.
So, questions:
1) Can you still run 2 appliances into 1 b-vent that runs up and out?
2) If 1 applies, what must be the runs/max distance from the appliances to the wye and what piping type?
I assume neither is over 3" from the appliance and I believe the bvent stack is 4" or 6".
It's not easy/he isn't willing to run high-efficiency. Yes he should. Yes the house is probably worth a million bucks in Miss and yes everything else in the house has been upgraded so he should do this but just assume its all going to continue to be b-vent. Yes the furnace is old and will be replaced eventually but not with the water heater.
I have a garage furnace (tagged by a gas installer) and he said I could do some normal piping but once i got going through walls or ceilings I needed proper B-vent stuff.
So, questions:
1) Can you still run 2 appliances into 1 b-vent that runs up and out?
2) If 1 applies, what must be the runs/max distance from the appliances to the wye and what piping type?
I assume neither is over 3" from the appliance and I believe the bvent stack is 4" or 6".
It's not easy/he isn't willing to run high-efficiency. Yes he should. Yes the house is probably worth a million bucks in Miss and yes everything else in the house has been upgraded so he should do this but just assume its all going to continue to be b-vent. Yes the furnace is old and will be replaced eventually but not with the water heater.