karter56
New Member
Time for a new gas water heater. 3 bath house but only 3 of us living there. Company only once a year. Furnace has a hot water coil but hot water circulates back to heater. Not sure if a 50gal, 40,000 btu is enough. Have a 30gal feeding a 50gal right now. Seems like overkill. Current model is a direct vent. Heater is in a 10ft tall crawl space. Do I have to use a direct vent system?