Best 1 Gallon Hot Water Heater in 2022 [*Top Picks*]

Looking for the best 1 gallon hot water heater on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

3268 Reviews Scanned

  • Camplux Mini Tank Electric Water Heater 1.3 Gallons Hot Water Heaters 120V, Under Sink Water Heater with Cord Plug 1.44kW
    Bestseller #1
    Camplux Mini Tank Electric Water Heater 1.3 Gallons Hot Water Heaters 120V, Under Sink Water Heater with Cord Plug 1.44kW (400)
      HIGH QUALITY & LONG LAST - The mini water heater has UL listed and uses a glass-lined tank with good insulation, and freezing mode can prevent the water tank from freezing, ensure a long service life EASY TO INSTALL & USE - Small water heater's dimensions 11.4 W × 11.4 H × 9.7 D inches can be shelf, wall, or floor-mounted (bracket included); Connect the water pipe, after filling the water tank, 35.43" cord plugs into the power supply (120V/12A), and it can be used normally OVERHEAT PROTECTION - When the water temperature of the water heater exceeds 203°F, the electric hot water heater will automatically shut down. Protect the safety of you and your family ADJUSTABLE TEMPERATURE - The point of use water heater has 3 temperature level settings, range from 68°F to 140°F. Thermal efficiency up to 99% CONVENIENT HOT WATER - No need to wait for hot water at the sink, get on-demand hot water at your every need 1-year warranty for parts and 24 hours customer service
  • Ecosmart ECO MINI 1 1.5-Gallon 120V Electric Mini Tank Water Heater,White
    Bestseller #1
    Ecosmart ECO MINI 1 1.5-Gallon 120V Electric Mini Tank Water Heater,White (386)
      Sleek and compact design with digital output temperature display ECOSMART tankless water heaters are 99.8-percent energy efficient Manufactured in United States Stores up to 1.5 Gallons of Water to supply hot water Easy installation - appliance line cord included For Buffer and Point of Use applications Plugs into 120V outlet Pressure Relief Valve Included 12 A
  • Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
    Bestseller #1
    Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted (386)
      CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120) INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time) EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
  • Eemax EMT1 1.5-Gallon Mini Tank Electric Water Heater , White , 12.50 x 11.00 x 10.00 inches
    Bestseller #1
    Eemax EMT1 1.5-Gallon Mini Tank Electric Water Heater , White , 12.50 x 11.00 x 10.00 inches (386)
      Point-of-use, ideal for under the sink providing instantaneous hot water Easy installation with 120V outlet plug Adjustable temperature range (50°F to 140°F) Wall and floor mountable 1/2" NPT Connections
  • Electric Hot Water Heater 110-120V Small Compact Tank Storage,Rv Tr 2.5-3.0 Gallon Trailer , 1.5KW Kitchen Instant Under Sink Counter Cupboard, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hose
    Bestseller #1
    Electric Hot Water Heater 110-120V Small Compact Tank Storage,Rv Tr 2.5-3.0 Gallon Trailer , 1.5KW Kitchen Instant Under Sink Counter Cupboard, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hose (13)
      【SAFE DURABLE & LONGEVITY】304 Made of stainless steel and never rust,Anti-leakage plug,Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant,This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV. 【SMART INVERTER FOR ENERGY SAVING】Digital Display,Automatic heat preservation and storage of hot water, 3.0 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%,Maximum temperature167℉,The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature. 【EASY TO USE】storage tank electric water heater with easy-to-operate knob temperature adjustment design,Easy to control warmth.Vent valve, Tee pipeline, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories. 【FAST RECOVERY RATE】Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time,8-15 minutes to heat to your desired temperature). 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 18.0''L x12.6''W x10.2''H; 8.86lbs; 1/2″NPT NPT. 1.5 kW, 110-120 volts. One-year warranty and 24H customer service support, feel free to contact us. If you have any questions about the product, you can contact us in time, and the customer service is online 24 hours a day for you For the accessories problem you mentioned, we will improve it soon! With T-tube, waterproof tape is required
  • Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
    Bestseller #1
    Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted (386)
      CONVENIENT HOT WATER HEATER: 7 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 17.5 W x 17.5 H x 14.5 D Inches INSTALLED VERTICALLY OR HORIZONTALLY: This larger model can be mounted vertically (5.1 gal. of water supply) or horizontally (7 gal. of water supply)- vertical orientation is installed with the cold and hot lines on top of the unit RELIABLE WATER SOURCE: Easily hard-wire the 7-gallon model to provide the on-demand reliable water source your home or office needs IMPORTANT INFORMATION: Heating capacity of 1440 watts and a temperature range of 65-145°F max. Operating pressure-150 psi. Water fittings-3/4 inch Male NPT. Electrical requirements (Amp 12A/Volts 120) EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included for vertical orientation only); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
  • Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch
    Bestseller #1
    Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, [email protected], 6 x 11 x 3 Inch (386)
      Can provide hot water for one sink at 0.5 GPM in warmer climates Requires 1 x 30 amp breaker and 10 AWG wire For one sink at 0.5 GPM in colder climates the POU 6 is recommended Amperage Draw 29 amp. kW - 3.5 kW Connection Fittings 1/2" NPT Max temperature rise @ .5 GMP is 47.8°F Max temperature rise @ 1GPM is 23.9°F Max temperature rise @ 1.5 GPM is 15.9°F
  • Titan N-100 Electronic Digital Tankless Water Heater By Niagara Industries Inc. 29 Years in Business
    Bestseller #1
    Titan N-100 Electronic Digital Tankless Water Heater By Niagara Industries Inc. 29 Years in Business (12)
      Endless Hot Water Space Savings Energy Saving, UL compliant & ETL Lead Free Certified 29 years in the business Patented Design Assembly
  • Rheem 18kW 240V Tankless Electric Water Heater
    Bestseller #1
    Rheem 18kW 240V Tankless Electric Water Heater (386)
      External digital thermostatic control with LED display (+/1 degree accuracy) Most advanced self-modulation, adjust power to meet hot water demand Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM Simple installation – bottom 3/4 inch NPT water connections Threaded for easy replacement, simple installation, digital temperature display
  • Ariston Andris 4 Gallon 6 Year 120-Volt Corded Point of Use Mini-Tank Electric Water Heater
    Bestseller #1
    Ariston Andris 4 Gallon 6 Year 120-Volt Corded Point of Use Mini-Tank Electric Water Heater (54)
      Compact design; wall or floor mounted (wall bracket included) Provide immediate hot water at the point of use; install as booster or standalone Easy installation; installs right at the point of use with water connection and standard 110/120 Volt outlet 6-year limited warranty on tank, 2-year warranty on parts TitanShield exclusive technology that fully protects inner surface against corrosion; robust environmentally safe insulation increases energy efficiency
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