Tankless Water Heater Exhaust Outside

This configuration allows tankless units to fit in smaller spaces.

Tankless water heater exhaust outside.

Tankless water heaters are vented in two ways. In fact tankless water heaters save up to 16 square feet of space. Simply locate the appropriate water heater sizes on ecomfort using your information. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.

A tankless water heater requires a 4 foot clearance from the side or below a door or window that opens unless the unit is directly vented to the outside. Gas tankless heaters are particularly ideal for outdoor installation as there s no need to change the structure of your home. Tankless water heaters can be vented in two ways. It doesn t matter if the gas is natural gas or propane this fact remains the same.

Installation is simple even for gas heaters. Direct vent units pull in air from outside the home or building and have two vents one for intake and one for exhaust. If you have a gas fueled tankless water heater that is installed inside the house it needs to be vented to the outside. Direct vent units attract outside air from the house or building while power vent units solely need an exhaust vent and should be installed in a larger area for receiving sufficient air amount for combustion.

Power vent and direct vent. To make venting easiest install your tankless water heater on an outside wall. Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. Tankless water heaters are ventilated in two ways.

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Noritz 11 1 gpm liquid propane indoor direct vent recirculating tankless water heater max 199 000 btu h model nrcp111 dv lp view the nortiz tankless water heater. Direct vent and power vent. If the unit is installed on a basement wall the vent pipe can be run up just a few feet and then vented out the side with the use of a 90 degree elbow.

Then there s the venting. Direct vent units pull in air from the outside so they have two vents for intake and exhaust. Power vent units use indoor air for combustion and simply vent the exhaust to the outside. But if you have an outdoor unit then you don t need a vent as the exhaust is already outside.

As the venting is much shorter for outdoor gas heaters there s no condensation.