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5 Best Water Heaters of 2025

Last Updated - 2025/06/19

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

thermomate

Thermomate Mini Tank Electric Water Heater ES700 Hard Wired 6.5 Gallons Point of Use Water Heater for Instant Hot Water Under Kitchen Sink 120V 1440W

thermomate

CA$329.99

More Details
Main highlights
- Specifications and Warranty - Dimensions: 17.7"H x 17.7"W x 14.6"D; Weight: 26.5 lbs; Water connections: 1/2" NPT, Electrical requirements: 1.44 kW at 120 volts, Must hard-wired; Max water pressure: 150PSI; Nominal current: 12A. 3-year Limited Warranty for the tank, 1-year warranty for parts and 24hours customer service
- Premium Quality & Durable - Glass-lined tank for great insulation, temperature and pressure relief valve included, UL Listed ensuring a long service life
- No More Wait for Hot Water - Point of use 6.5 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Thermal efficiency up to 99%
- Easy Installations - Dimensions 17.7" x 17.7" x 14.6" compact design, can be wall or floor mounted under sink / counter, can be easily hard wired. Nominal current 12amps
- Adjustable Temperature - Thermostat with 3 temperature level settings, range from 50°F to 149°F with high temperature limit protection, also a freeze mode to prevent tank from freezing
CA$329.99
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

GASLAND

GASLAND Outdoors BS158 1.58GPM 6L Portable Gas Water Heater, Propane Tankless Water Heater,RV Camping, Overheating Protection, Easy to Install

GASLAND

CA$239.99

More Details
Main highlights
- 𝟭.𝟱𝟴𝗚𝗣𝗠/𝟲𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - Maximum power output 41,000BTU/Hr.The temperature raise is 109.4℉ (43℃) at its highest point and 55.4℉ (13℃) is at its lowest point of 1.58 GPM. Also, 1.58 gallons of hot water can be produced per minute at the flow rate of 1.58 GPM. Low water pressure start up, just need 3.6 PSI of water pressure to start.
- 𝟭-𝗬𝗲𝗮𝗿 𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 - We provide a 1-year Warranty against manufacture defects and lifetime customer support.
- 𝗪𝗵𝗮𝘁'𝘀 𝗜𝗻𝗰𝗹𝘂𝗱𝗲𝗱 - GASLAND BS158 Tankless Water Heater, CSA certified gas regulator and hose,5 feet On/Off Switch Shower Head, mounting hardware, garden hose adapter, Manual.
- 𝗦𝗮𝗳𝗲𝘁𝘆 𝗜𝗻𝘀𝘁𝗮𝗹𝗹𝗮𝘁𝗶𝗼𝗻 𝗧𝗶𝗽𝘀 - To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. Always check gas leakage before operation.
- 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 𝗧𝗶𝗽𝘀 - Designed for portable outdoor use. It is splash-proof and can manage a little drizzle, however, prolonged exposure to rain/water will damage the internal components. We recommend using and storing your water heater in a dry place. For the winter, please drain out the wate by disconnecting the drain plug and store it in the warm and dry area.
- 𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - Runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition powered by two D-cell batteries. Can be used in a variety of scenarios: while you're camping, RVing, hunting, hanging poolside, washing your pets or horses, cleaning your vehicle, or even in your tiny home, greenhouse, or cabin house.
- 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗦𝗮𝘁𝗲𝗳𝘆 𝗣𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 - With CSA certification, safe as per Canadian and US Standard. Features over-heating protection, low water flow protection, dry combustion protection, anti-freezing protection, high water pressure protection and flame failure device.
CA$239.99
3
Best Value
20% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

GEESEN
20% Off

Upgrade Tankless Water Heater Electric 9KW 240V, On Demand Instant Endless Hot Water Heater, Portable Smart Small High Efficient Shower Heater with Intelligent Modulates (W-9KW)

GEESEN

CA$159.00

CA$199.00
(20% Off)

More Details
Main highlights
- 【Simple Installation】1/2-Inch Water heater connector. In order to install whole house tankless water heater electric 9KW 240V it requires 240 Voltage, 2 x Double-POLE 60AMP, wire gauge 2 x 8AWG, please check to confirm that your breaker panel meet these specifications. 2-year limite warranty and 24/7 customer support services
- 【SMART SELF ADJUSTMENT】 The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.
- 【SAFE and DURABLE】 Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come..POINT of USE The sleek tankless water heater is compact as an oatmeal box, making it possible to install anywhere close to outlet and avoid energy waste
- 【REMOTE CONTROL】 The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. The model comes with Remote control, useful for installation under sink.
- 【INSTANT HOT WATER HEATER 】- Applied with 9000W heating system, the electric tankless water heater supplies instant hot water, 3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 55℃/131℉. It is perfect companion for sinks, bringing you perfect experience of comfort and relaxing
CA$159.00
CA$199.00 (20% Off)
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ERFEI

ERFEI 2.5 Gallon Electric Water Heater, 110V-120V 1500W Under Sink Hot Water Heater,Portable Mini Tank Electric Water Heater with Pressure Release Vavle,Digital Display

ERFEI

CA$139.99

More Details
Main highlights
- Special Notice: Rated at 1500 watts, the heater operates on a standard voltage of 120V and requires a current of 10 amps,50Hz power supply . .Always use the original electric leakage protection plug, and keep the socket and plug dry to prevent electric leakage.
- Installation Method:1.Drill two horizontal holes and insert expansion bolts with hooks pointing upward;2.Hang the heater securely and install the original one-way safety valve;3.Fill the heater with water before use, opening a tap to release air. If pressure exceeds 0.7MPa, install a pressure-reducing valve. Dripping from the safety valve is normal.
- Extensive Applications:This 2.5 Gal lightweight electric water heater features high-quality components and a classic design, making it perfect for various household needs. Compact and versatile, it's ideal for kitchens, bathrooms, and more.
- Easy to Use:This direct-heating water heater features a high-efficiency, low-power heating element that maximizes thermal energy. The temperature can be adjusted between 30°C and 65°C（86°F to 149°F）, and it automatically shuts off when the set temperature is reached.
- 2.5 Gallon Electric Water Heater: Built-in safety mechanisms include overheating protection, electric leakage safeguards, and pressure controls. These features ensure safe operation and reliable performance, providing peace of mind for daily use.
CA$139.99
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BISELONG

110V-120V 1440-1500W Small Under Sink Tank 2.5 Gallon Water Heater Hot Storage,Mini Instant Electric RV TR Trailer Kitchen Compact,Food Truck 2 PCs 16” Long 1/2”FIP Stainless Steel Hose (BI-2.5)

BISELONG

CA$139.98

More Details
Main highlights
- 【Rapid Temperature Recovery】The BISELONG water heater is made from 0.04inch (1.1mm) thick 304 stainless steel and uses laser welding technology, ensuring it never rusts, withstands high pressure, and doesn't leak! The 1500w "L" shaped heating element increases the heat exchange area with the water in the tank, speeding up the heating process and eliminating the long wait for hot water beside the sink! (It can heat up to your desired temperature in 8-15 minutes for up to two sinks at a time).
- 【Product Upgrade】On June 25, 2023, the product was fully upgraded—the water heater’s 304 stainless steel lining will be thickened to 0.04 inches (1.1 millimeters), providing a longer service life, and the unit weight increased to 8.4lbs (3.8 kilograms). The insulation material and foam insulation were replaced, improving the Improved insulation effect, making it more energy-efficient!
- 【Note】Due to the improvement in product quality, the warranty period for water heaters purchased after July 4, 2023, is 2 years. According to buyer feedback, some water heaters had quality issues. Based on the photos provided by the buyers, it was found that they mistakenly installed the pressure relief valve at the outlet (red end)!
- 【Energy-Saving Smart Inverter】Automatically keeps water warm and stores hot water. The compact 2.5-gallon tank can be installed under the sink, with a thermal efficiency of 98% and a maximum temperature of 149℉. It has a built-in smart chip that heats to the temperature you set, and when it reaches the desired temperature, it automatically insulates to keep the heat in.
- 【Easy Installation】Water connection tube is 1/2''FPI, electrical requirements: 120v (AC), single voltage: 1500w with plug connection wire, maximum water pressure 108PSI, recommended circuit breaker rating: 15Amps, BISELONG electric water heater can be installed on walls or floors, in a concealed position.
- 【Customer Service】If there are any quality issues with the product or problems with installation, you can contact us at any time. Our customer service is online for 16 hours!！
- 【Compact Design Saves Space】BISELONG has always been committed to original design! Its compact, square design makes this water heater ideal for homes, under sinks, RVs, food trucks, and more. It can be installed in cabinets or used in conjunction with washing machines and dishwashers. The product dimensions are 13.0''L x 11.4''W x 10.6''H inches.
- 【Accessories】2 PCs 16" Long 1/2" FPI x 3/8" OD Comp Stainless Steel Water hose, 1 Pressure Relief Valve, 1 Tee Fitting. Complete accessories, fast installation, no additional cost or preparation time required！
CA$139.98

5 Best Water Heaters of 2025

Thermomate Mini Tank Electric Water Heater ES700 Hard Wired 6.5 Gallons Point of Use Water Heater for Instant Hot Water Under Kitchen Sink 120V 1440W

GASLAND Outdoors BS158 1.58GPM 6L Portable Gas Water Heater, Propane Tankless Water Heater,RV Camping, Overheating Protection, Easy to Install

Upgrade Tankless Water Heater Electric 9KW 240V, On Demand Instant Endless Hot Water Heater, Portable Smart Small High Efficient Shower Heater with Intelligent Modulates (W-9KW)

ERFEI 2.5 Gallon Electric Water Heater, 110V-120V 1500W Under Sink Hot Water Heater,Portable Mini Tank Electric Water Heater with Pressure Release Vavle,Digital Display

110V-120V 1440-1500W Small Under Sink Tank 2.5 Gallon Water Heater Hot Storage,Mini Instant Electric RV TR Trailer Kitchen Compact,Food Truck 2 PCs 16” Long 1/2”FIP Stainless Steel Hose (BI-2.5)

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