A recirculation pump lets you have hot water faster, but reduces efficiency.
Increase efficiency with the HotButton.
When the hot water pipes between you and your NPE-A heater cool down, the water inside cools down too. When you turn on your hot water, you feel that unpleasant cooler (or cold) water. Recirc pumps keep the water hot. But they use energy.
HotButton solves this problem. When you push the HotButton button, your NPE-A unit's internal recirculation pump and gas fired burner activate to heat up the water in the supply lines. In moments, that cold water is gone. You won't need to run the water until it gets hot. This saves you water and money.
• Activate the NPE-A series pump with a remote switch
• Provides on demand recirculation
• Requires a recirculation pipe line
• Compatible with all NPE-A series tankless water heater models: NPE-180A, NPE-210A and NPE-240A
• Not compatible with cascading, multi-unit installations
• California Title 24 compliant
HotButton Control Kit Contents
Navien HotButton Control Board
13-pin cable connector to control board on Navien NPE 180A, NPE-210A NPE-240A Water Heaters
Temperature Sensor GXXX001640
Push Button model number GXXX001426
Wall Plate item number GXXX001427
Installation Manual (click to download pdf)
HotButton to NPE-A connection wire length is 10 feet and can extended up to 100 feet with 18 gauge thermostat wire.
FAQ (Frequently Asked Questions)
Q1: Do I need the Hot Button to remotely turn the recirc pump on and off with the NaviLink app?
Q2: I want to control the recirculation pump with the NaviLink app. After the Hotbutton is installed, and the user is miles away from home, does someone need to push the HotButton's button to activate the recirc pump?
A2: No, the user can press the HotButton function on the app and the NPE-A unit will start recirculation. Of course, the HotButton must be installed for that function to work.
Installation Help and Recommendations
We recommend that you have a professional tankless water heater installer review the above recommendations. Improper installation may cause loss of life and/or property. Need an installer? Get 4 FREE Tankless Water Heater Installation Estimates Now. It's Quick and Easy!
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