Navien Tankless Water Heater Recirculation Loop

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Navien tankless water heater recirculation loop.

Npe series condensing tankless water heaters. Iirc takagi voids the warranty if the recirculation loop flow is over 2gpm. Navien npe 240a 199 000 btu condensing premiumgas tankless water heater. Typically with tankless water heaters the circulator needs to be properly sized.

Recirculation valve for use with npe a series tankless water heaters designed for recirculation of domestic hot water in applications where a dedicated return line is not available. Navien premium efficiency condensing tankless water heaters are the 1 selling high efficiency condensing tankless water heaters in north america the npe series offers industry leading efficiency up to 0 97 uef to keep your utility bills low endless hot water so you never have a cold shower and exclusive comfortflow technology with built in. Navien has been pushing the boundaries of efficiency for 25 years. I am not a fan of running tankless water heaters for recirculation while.

Better control of the cold water sandwich or cold water stacking. Gandy installations saves customer enough space for a refrigerator. When venting navien npe tankless water heaters it is important that you do not start the vent run with a street elbow at the vent collar. Navien comfortflow is the first and only system that incorporates a built in insulated buffer tank and recirculation pump.

Dec 20 navien condensing water heater manual. Read more problem solved. The npe 240a is a result of their dedication to providing an effective and green water heating unit. The buffer tank eliminates the cold water sandwich effect and issues of minimum flow rates commonly found in other tankless water heaters.

Using the circulator to do internal recirculation which does not require an external loop. If it is existing and it has worked in the past then there may be something wrong with the circulator.