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All comparisons

Pick a category to see the ranked table, the top pick and a buying guide.

Heat Pump Water Heaters

Integrated heat pump water heaters compared on official ENERGY STAR uniform energy factor, first-hour rating and certified storage volume, split into 240-volt and 120-volt tables.

Best 240-Volt Heat Pump Water Heaters (2026)

240-volt heat pump water heaters ranked on official ENERGY STAR UEF, first-hour rating and certified storage volume. Top pick: GE Profile PH80S10BNY019.9

Best 120-Volt Heat Pump Water Heaters (2026)

120-volt heat pump water heaters ranked on official ENERGY STAR UEF, first-hour rating and certified storage volume. Top pick: GE Profile PF80S10FPY019.9

Tankless Water Heaters

Gas tankless water heaters compared on official ENERGY STAR uniform energy factor, maximum gallons per minute and minimum activation flow.

Best Gas Tankless Water Heaters (2026)

Gas tankless water heaters ranked on official ENERGY STAR UEF, maximum gallons per minute and minimum activation flow. Top pick: Camplux RP199iB8.7