Direct vent water heaters bring combustion air ... How long does it take to install a 40-gallon hot water heater? The installation of a 40-gallon hot water heater typically takes two to three ...

A hot water heater is an essential home appliance that lasts an average of 8 to 12 ... The two types of venting systems are direct and power. Direct vent heaters use an exhaust pipe or chimney to ...