This is the model I have been going off of-
NEXT Hybrid® Gas - Water Heaters Residential by A. O. Smith
I understand the exhaust can be vented PVC, but can a system be devised that would draw fresh air directly from the outside rather from within the utility room? The present gas furnace is installed in this fashion within the outside utility room. Otherwise I would have to install a correctly sized vent in the wall and this would diminish inside heat in the room.
The current WH is electric.