Find the right gas tankless water heater for steady hot water at home, from compact installs to high-demand households.
A strong whole-home choice for busy families that want steady hot water without a storage tank.
Inside the unit, a TP2 copper heat exchanger and variable-speed fan support stable heat transfer as water demand changes. Water-gas proportional control helps the system adjust output for more consistent hot water.
The rear panel brings the water, gas, power, and grounding connections into a clearly defined layout. This makes it easier to confirm connection points before installation and access the unit for future service.
Gas Tankless Series
Compare the first three Mizudo gas tankless models by flow, install type, and daily home use.
| Products |
|
|
|
|---|---|---|---|
| Model | 4.0 GPM Indoor | 5.1 GPM Outdoor | 5.1 GPM Convertible Wi-Fi |
| Heat Output | 90,000 BTU | 120,000 BTU | 120,000 BTU |
| Max Flow Rate | 4.0 GPM | 5.1 GPM | 5.1 GPM |
| Install | Indoor | Outdoor | Indoor / Outdoor |
| Best For | Small homes / indoor upgrade |
Outdoor installs / more flow |
Flexible setup / Wi-Fi control |
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