10 BEST WATER HEATERS for sale in 2025 – compare between the best water heaters on sale.

Rank Product Rating
1
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
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1,232 Reviews
Product Highlights
  • CONVENIENT HOT WATER HEATER: 4 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 13.5 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)

$151.99
2
Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray
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72 Reviews
Product Highlights
  • 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

$429.00 $377.00
3
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
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2,577 Reviews
Product Highlights
  • Lifetime warranty
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design

$277.00 $208.39
4
Camplux Pro 1.58 GPM Tankless Propane Water Heater, Outdoor Propane Gas Water Heater with Portable Handle, Portable Gas Water Heater for Camping,Cabins,White
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Product Highlights
  • Compact,Light Weight Portable Design-11.61 (L)*4.33(W)*17.32(H) inch ,Weight-16 lb. Compact and portable design perfect for barns,cabins,delivers instant hot shower for dogs and horses.
  • Easy Installation for Instant Hot Water-It only takes you a few minutes to get 1.58 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 3.0-110 PSI, low water pressure is perfect for campings and remote cabins.
  • CSA Safety Testing Standard Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.
  • Power Efficient & Energey Saving -Maximum power output 41,000btu/hour, you will get instant endless hot water easily wherever you are. Compact and lightweight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.

$139.99
5
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
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1,234 Reviews
Product Highlights
  • 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 (7 gal. of water supply) or horizontally (5.1 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)

$333.00 $214.19
6
Tankless Water Heater, GASLAND Outdoors BE158L 1.58GPM 6L Outdoor Portable Gas Water Heater, Propane Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat, Blue
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Product Highlights

$149.99
7
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
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94 Reviews
Product Highlights
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM

$247.00
8
American Standard CE-12-AS 12 gallon Point of Use Electric Water Heater
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50 Reviews
Product Highlights
  • Heavy gauge Steel tank
  • Factory installed Brass drain valve on all models allows for easy draining of the unit which reduces sediment deposits extending tank life
  • Factory installed Brass temperature/pressure relief valve
  • American standard point-of-use electric water heaters are all certified at 300 psi test pressure and 150 psi working pressure. All tanks are also 100% hydrostatically tested at the factory

$279.00
9
JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes
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Product Highlights
  • Heating HelperThe instant hot water heater is suitable for rapid heats water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc. The Package includes 1 x digital thermometer, 1 x stainless steel cleaning ball, 1x water heater. It is deal gift for your friends and family during winter.
  • Safety & PracticalityThe pool heater with stainless steel protective guard can effectively prevent the heating element from directly contacting the human body, which is more safer. Heat dissipates to the water faster by flowing through the holes in the guard. It can boil 5 gallons of water in a few minutes. d fire. Please use it strictly according to the instructions! !
  • Easy To UseFully submerge the heater in the water and connect it to a 120V power supply. Check power indicator light to make sure immersion water heater is working then it will heat water continuously. JESTOP heater is perfect for any cold weather application.
  • Widely ApplicationJESTOP Heater is small and portable. You can easy to carry it to heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in a tiny home or camper, window washing water and more!

$24.99
10
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt
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180 Reviews
Product Highlights
  • 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

$189.00 $129.00

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