Greentherm 9000 Series

It’s time to go tankless with this innovative gas tankless water heater.

  • Space-saving, state-of-the-art tankless design
  • Ultra efficient condensing technology with UEF up to 0.95
  • Wi-Fi accessory & App increases functionality
  • Top water connections for easy tank replacement

Enjoy Energy Efficient Hot Water

The Greentherm 9000 offers an efficiency rating of UEF up to 0.95 and innovative features for easy installation, operation and simple maintenance. You will enjoy an industry-leading 15-year warranty on the heat exchanger and a full 5-year limited warranty on parts.

Replacing a tank?

The Greentherm 9000 series indoor models were specifically designed with top connections for water, integrated drain ports so isolation valves are not needed, and a unique integrated sensor technology that auto-calibrates, making the switch to tankless water heating quick and easy.

Beautiful and Hardworking

All Greentherm 9000 Series models feature sleek, rounded corners on the metal cabinet, making these water heaters as beautiful as they are energy-efficient. The premium Greentherm 9900i SE model comes standard with a glass front and integrated Wi-Fi control (available as option on other models).

Control Remotely from Mobile

The free Greentherm 9000 mobile app allows you to remotely control the water temp, activate the recirculation pump, and monitor usage and sensor values from your cellphone or tablet.

Options for Everyone

Choose from seven models to ensure a configuration for any need from small home or condo to large commercial applications. Indoor models can be converted from natural gas (NG) to liquid propane (LPG), and flexible venting options keep installation simple.

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