Direct vent water heaters bring combustion air from ... they can reach $2,500 when switching from a tank-style water heater to a tankless unit. How long does it take to install a 40-gallon hot ...

Tankless water heaters are more of an investment but are expected to last 20 years or ... There are two types of venting: direct or power. Direct-vent heaters are less expensive and use an exhaust ...

Tankless water heaters don’t have a water storage tank and provide warm water on demand ... The two types of venting systems are direct and power. Direct vent heaters use an exhaust pipe or chimney to ...