Direct vent heaters use an exhaust pipe or chimney to exhaust gas directly outside your home. Power vent heaters use a fan or blower. “Venting system installations cost an additional $300 to $600,” ...

The tanks come in various sizes and generally cost more as their size increases. Gas water heaters must vent their combustion gasses to the home’s exterior. A water heater with a direct venting ...

Gas water heaters cost between $600 and $2,700 to replace ... There are two types of venting: direct or power. Direct-vent heaters are less expensive and use an exhaust pipe or chimney. Power-vent ...