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Tankless water heater brands go well beyond Rinnai, Navien and Rheem. Here’s where each smaller brand fits and what to check before buying.
Brand matters less than choosing the right type, size and installation. Still, brands differ in service networks, warranty terms and parts support. Use this guide alongside our best tankless water heaters picks.
| Brand | Known for | Fuel |
|---|---|---|
| Eemax | Electric point-of-use and whole-house units, commercial applications | Electric |
| Bradford White | Professional-channel water heaters, including Infiniti and EverHot tankless lines | Gas |
| Richmond | Retail water heaters, including the Encore tankless line | Gas, electric |
| Titan (B&K) | Compact electric tankless units | Electric |
| Chronomite | Instant-Flow point-of-use heaters, such as the SR-15L/120 | Electric |
| Marey | Budget gas and electric tankless units | Gas, propane, electric |
| Eccotemp | Portable outdoor (L5, L10) and indoor (i12) units | Propane, natural gas, electric |
| Camplux | Portable propane and budget indoor units | Propane, natural gas, electric |
| Vevor, Gasland, Ranein, Thermomate | Budget online brands | Varies |
| Mizudo | ComforTech gas tankless models | Natural gas, propane |
| Westinghouse | Mainly stainless steel tank water heaters; limited tankless | Electric, gas |
Ownership and product lines change; check the brand’s website for current models and support.
Popular searches include the Mizudo ComforTech classic natural gas tankless water heater, the Eemax tankless water heater, the Bradford White tankless water heater, the Vevor tankless water heater, the Marey tankless water heater, the Richmond tankless water heater, the Titan tankless water heater (B&K), the Chronomite Instant-Flow electric tankless water heater SR-15L/120, the Eccotemp i12-NG indoor natural gas tankless water heater and the Ranein tankless water heater.
Eemax, Chronomite and Titan focus on electric tankless heating, especially point-of-use. They are good options for a single sink, a break room or a far bathroom. See point-of-use water heaters.
Bradford White and Richmond are long-established water heater brands. Bradford White sells mainly through plumbing professionals; Richmond is commonly sold at retail. Both have dealer and service networks for warranty support.
Eccotemp, Camplux, Marey, Vevor and similar brands offer lower prices, often for outdoor, cabin, RV-adjacent or light-duty use. Before using one as a primary whole-house heater, check:
See RV and portable tankless water heaters.
| Type | Typical size (H × W × D) |
|---|---|
| Whole-house gas (indoor) | about 18–28 × 13–19 × 9–14 in |
| Whole-house electric | about 14–20 × 14–18 × 4–6 in |
| Point-of-use electric | about 6–13 × 7–10 × 3–4 in |
| Portable propane | about 15–24 × 12–16 × 5–8 in |
Always check exact dimensions and service clearances on the product page and in the manual.
Every listing shows specs, condition and warranty.
Brands with long track records include Rinnai, Navien, Noritz, Rheem, A.O. Smith, Takagi and, for electric, Stiebel Eltron. Reliability depends heavily on installation, water quality and maintenance.
Budget brands can work well for cabins, outdoor showers or light use. For a primary whole-house heater, check safety certification, warranty terms, availability of parts and whether local installers will service the brand.
Whole-house gas units are typically about 18–28 inches tall, 13–19 inches wide and 9–14 inches deep. Electric whole-house units are often smaller, and point-of-use units can fit in a vanity.
Published specs and manuals, U.S. safety certification, clear warranty terms, parts availability, and trained installers in your area.
This guide is general information for U.S. homeowners, not professional advice. Gas, electrical and venting work must follow the manufacturer’s instructions and local codes, and in most areas requires a licensed plumber, electrician or gas fitter and a permit. Specifications and prices change; always confirm details on the product page and in the installation manual.
