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    Mizudo Tankless Water Heater Reviews

    Tankless Geek currently reviews 1 Mizudo model. Each review separates our editorial score from Amazon customer ratings and links the source documents used for specifications, installation and warranty details.

    Specifications verified on the date shown in each review. Product availability and documents can change.

    Mizudo 4.3
    BEST VALUE
    Budget

    Mizudo 4.3

    4.3

    Budget indoor natural-gas tankless (100,000 BTU/h, up to 4.3 GPM, ≈0.81 UEF) with an oxygen-free copper heat exchanger, a touch panel with LED display, 3-inch power venting, and CSA certification — sized for 2–3 fixtures in a small home or apartment.

    Amazon customer rating as of the last specification review. Not the Tankless Geek editorial score.

    Flow Rate:4.3 GPM
    Energy Type:Natural Gas
    Installation:Indoor
    Best For:Budget home installs, Small family use, Backup systems
    $399

    How to compare Mizudo models

    Compare usable flow at your required temperature rise, energy input, installation requirements, efficiency, service access and written warranty. A maximum GPM value without its test conditions is not enough to size a system.

    Sizing guideDownload the specification dataset