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10 Best tankless water heaters in Canada
Best Choice01RaneinRanein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Main highlights- Upgrade features：Four Seasons Function: Automatically adjust the water temperature output based on the seasonal water temperature changes. Kitchen Function: Default water output temperature is 100°F, suitable for kitchen use. Bathtub Function: Adjustable water output quantity with a reminder when the set output quantity is reached, catering to various environmental needs.
- Save Money：The kit already includes the exhaust pipe, so you don't need to spend extra money on purchasing it separately. With an oxygen-free copper water tank, it reduces heat loss and lowers energy consumption. Applied with standard 1/2" NPT water fitting and gas inlet.
- Recommendation：We strongly advise that all installations of the device adhere to local building and plumbing regulations at the installation location, and should be carried out by licensed professionals. This product is not recommended for use in areas over 2,000 feet.
- Performance：The on-demand tankless water heater boasts a heating capacity of 100,000 BTU and a hot water flow rate of 4.3 gallons per minute (GPM). It can provide continuous hot water for 2-3 water supply points, making it sufficient to meet the hot water needs of a household's bathroom, kitchen, and bar area.
- No Waiting Required：Unlike traditional tank water heaters, tankless water heaters eliminate the need for a 30-minute preheating wait time, allowing you to have unlimited hot water on demand.
9.8Exceptional
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- 02thermomate
ThermoMate 113,000 BTU Natural Gas Tankless Water Heater, Up to 5 GPM, High Efficiency Instant On-Demand Hot Water for Whole House Use, Indoor Residential Water Heater with Multi-Point Heating
Main highlights- [Smart Diagnostic Display] - Equipped with a 3.5-inch LED touchscreen, it allows you to effortlessly adjust and monitor output water temperature（90°F to 140°F）while providing real-time tracking of water flow, fan operation, and flame status. Advanced error code technology enables rapid diagnosis of water heater malfunctions. The UL-certified 120V/5-foot power cord ensures continuous power supply for real-time monitoring systems.
- [Safety & Reliable] - The gas tankless water heater comes standard with a range of safety features including boil-dry burning protection, Freeze protection, Flame out protection, Overheating Protection, Over temperature protection, Timeout protection, Pipe blockage protection, High-Temperature Lock Protection, Excessive Air Pressure Protection.
- [Max 5 GPM & 113,000 BTU] - The ThermoMate instant hot water heater can supply two showers simultaneously, each delivering 105°F water at a flow rate of 2 GPM, based on an inlet water temperature of 65°F. No waiting time, no cold water shocks, perfect for busy households. Adopting advanced water flow sensor, the built-in chip can adjust the heating power 20,000 times per second, ensuring that the hot water within ±1℉ fluctuations for a comfortable shower experience.
- [Energy Efficient & Save Money] - The heat exchanger is constructed from high-quality oxygen-free copper, providing superior thermal conductivity and corrosion resistance compared to stainless steel. It achieves a thermal efficiency of 98% (vs. 80% for stainless steel models) and boasts a uniform energy factor (UEF) of 0.81. This design reduces energy waste, lowering annual operating costs by approximately 30% versus traditional systems.
- [Easy to Install & Save space] - The whole house tankless water heater features standard 3/4" NPT water inlet/outlet connectors, a 1/2" NPT gas inlet, a 3" OD vent, and a UL-approved 120V plug, ensuring compatibility with most households. With its compact dimensions of 21"H x 13"W x 7"D, the on-demand water heater requires less than one-third of the space occupied by traditional tank models, freeing up valuable room in your home.
9.7Exceptional
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- 03Wadoy
3000W Tankless Water Heater, 110V Portable Electric Water Heater with Digital Display & Overheat Protection, Instant Water Heater Under Sink, On Demand Water Heater for Kitchen Bathroom RV
Main highlights- 𝐔𝐋𝐓𝐑𝐀-𝐂𝐎𝐌𝐏𝐀𝐂𝐓 𝐃𝐄𝐒𝐈𝐆𝐍: This compact instant hot water heater features a robust ABS casing and solid brass inlet/outlet fittings, ensuring durability and excellent corrosion resistance. LED display showing real-time water temperature. Slim, elegant design fits perfectly under sinks. Operates on 110V plug-in power. Note: Ideal for hand washing/sink use; the portable water heater not suitable for showering (requires ≥ 1.8 GPM)
- 𝐎𝐔𝐓𝐒𝐓𝐀𝐍𝐃𝐈𝐍𝐆 𝐂𝐔𝐒𝐓𝐎𝐌𝐄𝐑 𝐒𝐄𝐑𝐕𝐈𝐂𝐄: We provide prompt and friendly customer support to assist you with any questions regarding this compact water heater. Should you encounter any issues while using your tankless water heater, feel free to contact us at any time. We will respond quickly and provide you with a solution
- 𝐌𝐔𝐋𝐓𝐈-𝐋𝐀𝐘𝐄𝐑𝐄𝐃 𝐒𝐄𝐂𝐔𝐑𝐈𝐓𝐘 𝐏𝐑𝐎𝐓𝐄𝐂𝐓𝐈𝐎𝐍: Electric tankless water heaters achieve up to 98% thermal efficiency, delivering significant energy savings. Equipped with multiple safety protections, including IPX4 water resistance, leakage protection, dry-burn protection, water/electricity isolation, and automatic overheat shutdown. Designed to ensure safe operation in diverse indoor environments
- 𝐈𝐍𝐈𝐍𝐒𝐓𝐀𝐍𝐓 & 𝐏𝐎𝐖𝐄𝐑𝐅𝐔𝐋 𝐇𝐎𝐓 𝐖𝐀𝐓𝐄𝐑: The 3000W electric water heater delivers instant, continuous hot water with a temperature rise up to 122° F at 0.5 GPM. Can be adjusted directly via the faucet or flow control valve, large water flow and low temperature, small water flow and high temperature. The tankless electric water heater can set Fahrenheit or Celsius degrees by holding a power button for 6 seconds
- 𝐄𝐀𝐒𝐘 𝐕𝐄𝐑𝐓𝐈𝐂𝐀𝐋 𝐈𝐍𝐒𝐓𝐀𝐋𝐋𝐀𝐓𝐈𝐎𝐍: The on demand water heater features a compact design, making it ideal for kitchens, apartments, RVs, and camping. Includes English instructions, mounting screws, and a 1/2-inch NPT standard connection. Water heaters require dedicated wiring for safe operation, use ≥ 2.5 mm² wire and connected to trip switches of over 32A for use. Important: Must be installed vertically to prevent E2 fault
9.6Exceptional
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Value for Money04RaneinRanein Electric Tankless Water Heater, 18kW 240V on Demand Instant Endless Water Heater with LED Temperature Display for Residential Whole House Shower, Space Saving
36% OffMain highlights- Simple: The endless hot water heater electric features knob controls and an LED display. With an adjustment range from 86°F to 131°F in 1°F increments, just simply set the temperature and enjoy stable and ample hot water.
- Save: Compared to tank-type water heaters, electric tankless water heater don't require preheating. There's no energy consumption when not in use. It saves 60% of heating costs. Additionally, it's more compact and can be installed anywhere.
- Safe: The instant electric tankless water heater is applied with multiple protections, like leakage protection, overheating protection, and drop test, damp proof, every unit electric tankless water heater goes through strict tests to ensure 100% safety and it is listed by CSA.
- Powerful: This electric water heater's on-demand thermal efficiency reaches up to 99%. With a flow rate of up to 4.3GPM, it's suitable for 2-3 usage points throughout the house. No waiting for preheating. Provides endless ample hot water.
- Note: Make sure this water heater tankless is sized for your hot water needs: 18 kW; 240 volts; circuit breaker required 2 x bipolar 40 amps; unit dimensions 13.8" x 3.1" x 18.7"; water connection 3/4" NPT.
9.5Excellent
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- 05thermomate
ThermoMate 113,000 BTU Natural Gas Tankless Water Heater, Up to 5 GPM, High Efficiency Instant On-Demand Hot Water for Whole House Use, Indoor Residential Water Heater with Multi-Point Heating
Main highlights- [Smart Diagnostic Display] - Equipped with a 3.5-inch LED touchscreen, it allows you to effortlessly adjust and monitor output water temperature（90°F to 140°F）while providing real-time tracking of water flow, fan operation, and flame status. Advanced error code technology enables rapid diagnosis of water heater malfunctions. The UL-certified 120V/5-foot power cord ensures continuous power supply for real-time monitoring systems.
- [Safety & Reliable] - The gas tankless water heater comes standard with a range of safety features including boil-dry burning protection, Freeze protection, Flame out protection, Overheating Protection, Over temperature protection, Timeout protection, Pipe blockage protection, High-Temperature Lock Protection, Excessive Air Pressure Protection.
- [Max 5 GPM & 113,000 BTU] - The ThermoMate instant hot water heater can supply two showers simultaneously, each delivering 105°F water at a flow rate of 2 GPM, based on an inlet water temperature of 65°F. No waiting time, no cold water shocks, perfect for busy households. Adopting advanced water flow sensor, the built-in chip can adjust the heating power 20,000 times per second, ensuring that the hot water within ±1℉ fluctuations for a comfortable shower experience.
- [Energy Efficient & Save Money] - The heat exchanger is constructed from high-quality oxygen-free copper, providing superior thermal conductivity and corrosion resistance compared to stainless steel. It achieves a thermal efficiency of 98% (vs. 80% for stainless steel models) and boasts a uniform energy factor (UEF) of 0.81. This design reduces energy waste, lowering annual operating costs by approximately 30% versus traditional systems.
- [Easy to Install & Save space] - The whole house tankless water heater features standard 3/4" NPT water inlet/outlet connectors, a 1/2" NPT gas inlet, a 3" OD vent, and a UL-approved 120V plug, ensuring compatibility with most households. With its compact dimensions of 21"H x 13"W x 7"D, the on-demand water heater requires less than one-third of the space occupied by traditional tank models, freeing up valuable room in your home.
9.4Excellent
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- 06Rheem
Rheem 11kW 240V Tankless Electric Water Heater
Main highlights- Side 1/2" NPT water connections
- Self-modulating power control
- On demand, consistent and continuous hot water
- ON/OFF Dial Control with adjustable digital temperature display
- 11kW Model Flow Rate: up to 2.68 GPM
9.3Excellent
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- 07DWALE
Tankless Water Heater Propane, 4.74GPM 18L Outdoor Portable GasHot Water Heater, Instant Water Heater with Digital Display Multi-Protection for Camping Trips Boat Cabins
20% OffMain highlights- 【Wide Usage】- Ideal for camping, hiking, fishing, beach trips, outdoor showers, portable sinks, or use in RVs, SUVs, and vans. This camping heater is also great for washing pets. Always check for gas leakage before each use to ensure safety.
- 【Premium Water Heater】-This tankless water heater with CSA Certified Regulator, featuring enhanced safety protections including a flame failure device, overheat protection. Requires only 3.6 PSI of water pressure to operate and delivers 4.74 gallons of hot water per minute. Capable of a maximum temperature rise of 167°F. Designed for use with Propane (LPG) only.
- 【Portable Design】 - Compact and lightweight, this portable water heater is easy to transport, allowing you to enjoy a refreshing hot shower after a long day of camping, inside your RV, or while bathing your pet. With dimensions of 24.2 x 5.9 x 13.4 inches and powered by 2 D-cell batteries.
- 【Efficient & Energy Saving】- This propane water heater’s heat exchanger and main burner utilize advanced combustion technology to reduce gas consumption and lower operating noise. With a maximum output of 68,000 BTU/hour, enjoy endless hot water instantly, wherever you are. Its compact and lightweight build incorporates 11.5% energy-saving technology, delivering more hot water while spending less.
- 【Complete Accessories】- This tankless water heater includes a CSA-approved 5FT gas regulator, a high-pressure showerhead with 5 spray modes, a 59-inch (1.5m) stainless steel hose, and a shower holder. Beneath the unit, you’ll find three clearly marked ports: left for air intake, middle for the shower connection, and right for water inlet.
9.0Excellent
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- 08DWALE
Tankless Water Heater Propane, 4.74GPM 18L Outdoor Portable GasHot Water Heater, Instant Water Heater with Digital Display Multi-Protection for Camping Trips Boat Cabins
Main highlights- 【Wide Usage】- Ideal for camping, hiking, fishing, beach trips, outdoor showers, portable sinks, or use in RVs, SUVs, and vans. This camping heater is also great for washing pets. Always check for gas leakage before each use to ensure safety.
- 【Premium Water Heater】-This tankless water heater with CSA Certified Regulator, featuring enhanced safety protections including a flame failure device, overheat protection. Requires only 3.6 PSI of water pressure to operate and delivers 4.74 gallons of hot water per minute. Capable of a maximum temperature rise of 167°F. Designed for use with Propane (LPG) only.
- 【Portable Design】 - Compact and lightweight, this portable water heater is easy to transport, allowing you to enjoy a refreshing hot shower after a long day of camping, inside your RV, or while bathing your pet. With dimensions of 24.2 x 5.9 x 13.4 inches and powered by 2 D-cell batteries.
- 【Efficient & Energy Saving】- This propane water heater’s heat exchanger and main burner utilize advanced combustion technology to reduce gas consumption and lower operating noise. With a maximum output of 68,000 BTU/hour, enjoy endless hot water instantly, wherever you are. Its compact and lightweight build incorporates 11.5% energy-saving technology, delivering more hot water while spending less.
- 【Complete Accessories】- This tankless water heater includes a CSA-approved 5FT gas regulator, a high-pressure showerhead with 5 spray modes, a 59-inch (1.5m) stainless steel hose, and a shower holder. Beneath the unit, you’ll find three clearly marked ports: left for air intake, middle for the shower connection, and right for water inlet.
8.7Very Good
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- 09thermomate
Tankless Water Heater Electric, thermomate 14kW at 240 Volt, On Demand Instant Hot Water Heater for Shower, Self-Modulating Save Energy, Save Space, 2.66GPM at 35°F Rise ET140
Main highlights- [Save Money and Space] - Self-modulating technology auto regulating the amount of energy required to heat water by continuously detecting water temperature and flow rate with 99% heating efficiency, saving up to 60% on water heating cost comparing to traditional tank water heater. 1/2"NPT connections and wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces
- [On Demand Endless Hot Water] - Provide continuous endless hot water for residential house use. 24 hours standby. 14kW powerful heating support up to 2 faucets & 1 shower and large 2.66GPM at 35°F temperature rise. electronic temperature control adjustable in 1-degree increments from 86 to 131°F. Requires Double Pole 60Amp breaker
- [Leak Proof & Maintenance Free] - The first to use cast aluminum heating chamber, Heating element separated from water lines to prevent water leaking and scale & corrosion on heating element, ensuring high heating efficiency and extending usage life span
- [Installation] - 14 kilowatts at 240V draws max 58amp, 1/2” NPT male ports, 6AWG wire to 60AMP Double-pole breaker, ideal for providing hot water for a bathroom, small sink, office break room and other point-of-use or low-flow applications
- [Easy Installation & Safety Protection] - ETL Listed to UL-499 and CAN/CSA-C22.2 No. 64 with overheating protection, auto stop heating when detecting no water, quality workmanship for leakage protection
8.6Very Good
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- 10thermomate
Tankless Water Heater Electric for Sink Faucet, ThermoMate 4500W 110~120V Small Point of Use Instant Hot Water Heater CSA Approved with Temperature Display, Self-modulating, 0.85GPM at 35°F Rise
Main highlights- [Self-modulating Power] - Regulating the amount of energy required to heat water only when you need it with 99.8% efficient. 110-120V Hardwired
- [Long-lasting Quality] - Cast aluminum heating element separated from water line, significantly reducing scale, corrosion and mineral buildup. SUS 304 stainless steel water tube
- [Instant Sink Hot Water] - 4.5kw power heating system provides on demand hot water in seconds for point-of-use applications, perfect for under / over sink faucet. Temperature range from 85°F - 131°F. 24 Hours standby. 0.26GPM-1.0GPM
- Touch control panel and digital temperature display allowing adjustment in 1° increment. IP25 waterproof, Standard 1/2"NPT pipe fitting, pre-wired pigtail for easy installation
- Sleek Compact Size - 10.95" x 7.4" x 2.52", Small water heater fit in tight places within your home or business, like under cabinets and sinks, hair salons, bar counters and hotel receptions, saving valuable storage space
- Important Note - Please verify this unit is the right size for you: 4.5kW 120V ONLY Hardwired, requiring 40A Double Pole Circuit Breaker, 10AWG min wire size and 1/2"NPT water connections
8.3Good
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