Other similar size heaters require a costly flue installation.
Vent free tankless water heater.
Ods oxygen detection safety pilot.
4 1 out of 5 stars 19.
Logsets water heaters space heaters safety.
All other tankless gas water heaters require at least 20 psi to start up due to their outdated technology.
Starts up with only 2 psi.
No expensive flue required.
Noritz nrc66dvlp indoor.
Rheem rtg 84dvp low nox direct vent tankless water heater liquid propane energy star 8 4 gpm.
4 0 out of 5 stars 14.
Excel pro tankless gas water heater natural gas 6 6 gpm whole house and for hydronic heating compare to rinnai rheem noritz bosch free flue kit 3 6 out of 5 stars 48 555 00 555.
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.
Ez deluxe tankless water heater 3 4 gpm natural gas ng indoor whole home free direct vent exhaust included.
All other tankless gas water heaters rely on outdated rubber diaphragm technology to start the units and need pressures higher than 20 psi to operate.