Direct vent units pull in air from outside the house so they have two vents for intake and exhaust.
Vent free tankless gas water heater.
The excel tankless propane water heater is equipped with a magnetic flow sensor that allows the unit to start up at only 2 psi water pressure.
But if you have an outdoor unit then you don t need a vent as the exhaust is already outside.
Plus it works at up to 120 psi.
Gas tankless water heaters don t have to use indoor air for combustion.
Holds up to 150 psi.
The excel vent free tankless propane water heater saves energy and water while instantly delivering infinite hot water upon opening the tap no matter the water pressure.
In fact tankless water heaters save up to 16 square feet of space.
It doesn t matter if the gas is natural gas or propane this fact remains the same.
Direct vent and power vent.
Tankless water heaters are vented in two ways.
This is due to its vent free technology.
All other tankless gas water heaters rely on outdated rubber diaphragm technology to start the units and need pressures higher than 20 psi to operate.
Other similar size heaters require a costly flue installation.
4 2 out of 5 stars 142.
Rheem rtgh 95dvln 9 5 gpm indoor direct vent tankless natural gas water heater.
10 1 gpm liquid propane indoor direct vent recirculating tankless water heater max 180 000 btu h.
Vent free tankless gas hot water heater ease of conversion small carbon footprint green awareness growth g generate environmental awareness r recycle as much as possible e eliminate unnecessary waste e energy conservation n now is the time.
Direct vent units pull in air from outside the home or building and have two vents one for intake and one for exhaust.
Tankless water heaters can be vented in two ways.
All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul.
Ez deluxe tankless water heater 3 4 gpm natural gas ng indoor whole home free direct vent exhaust included.
Starts up with only 2 psi.
4 0 out of 5 stars 14.
The excel tankless gas water heater is an efficient lightweight water heater that runs on 3 volts.
Rheem rtgh 84dvln indoor direct vent natural gas condensing tankless water heater low nox.
Power vent units use indoor air for combustion and simply vent the exhaust to the outside.
Indoor tankless water heaters draw in outside air.
If you have a gas fueled tankless water heater that is installed inside the house it needs to be vented to the outside.
All other tankless gas water heaters require at least 20 psi to start up due to their outdated technology.
No expensive flue required.
11 1 gpm natural gas indoor condensing direct vent residential tankless water heater 199 900 btu.
Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide.
Vent adapter is needed to connect the water heater which is tankless to the exhaust hose.
This configuration allows tankless units to fit in smaller spaces.