Similar to navien rinnai uses a recirculation pump in some units to address inconsistent water temperatures found in the last generation of tankless heaters.
Navien tankless water heater with recirculating pump reviews.
The intelligent preheating technology has been used in the navien npe.
Tankless water heaters save space and can provide just as much water heating as any competitor s water heat er.
First of all the model does come with a variable flow range.
Navien has been pushing the boundaries of efficiency for 25 years.
Navien npe 240a 199 000 btu condensing premiumgas tankless water heater.
1 grundfos 595916 1 25 horsepower comfort series recirculator pump.
Navien npe 240a model has the advanced type of built in recirculation pump so there is no need to have any type of external pump for the recirculating system.
The buffer tank eliminates the cold water sandwich effect and issues of minimum flow rates commonly found in other tankless water heaters.
With the npe a unit s built in pump water circulates through the navicirc to preheat the hot water lines using the cold supply line as the return line back to the water heater.
First off as with all tankless water heaters careful consideration must be taken to calculate needed performance values such as total flow rate needed gas supply available venting options recirculation requirements and water temperature delta t.
The navien npe 240a has a minimum input of 19 900 btu h with its maximum topping off at 199k.
If you need a new water heater but space is limited a navien tankless water heater may help.
The recirculation pump saves on water bills by reducing the time to get hot.
With this model you save cost and weight.
Navien npe 240a premium condensing tankless gas water heater.
Starting with a uniform energy factor uef of up to 96 and low nox ratings these units include comfortflow recirculation technology to eliminate cold periods.
You also enjoy the high performance space saving and energy efficiency for which all navien condensing gas heaters.
It is a top performance pump that delivers on some good performance features that anyone would enjoy owning right now.
The navicirc recirculation valve works best if installed under the furthest accessible fixture away from the water heater.
The npe 240a is a result of their dedication to providing an effective and green water heating unit.
Top rated navien tankless water heater reviews 1.
Aside not having an internal buffer tank and re circulation pump navien npe 240s premium condensing tankless gas water heater is identical to its npe 240a tankless water heater.
The advanced line provides more quality than just about any other tankless heater on the market.
Navien tankless water heater reviews.
Although navien goes a step further by including a buffer tank on certain models that stores a ready supply of hot water to eliminate the cold water sandwich mentioned.