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Best tankless water heaters Deals in Canada

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Deals are available from 1 stores and 9 brands. An additional discount is available for 3 items. Last updated on September 23, 2025.
RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.
RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.
RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.
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FOGATTI RV Tankless Water Heater, InstaShower 8 Plus, Gen 2, with 15 x 15 inches White Door and Remote Controller, DC 12V, Best High Altitude Performance, Ideal for RVers' Everyday Use
FOGATTI RV Tankless Water Heater, InstaShower 8 Plus, Gen 2, with 15 x 15 inches White Door and Remote Controller, DC 12V, Best High Altitude Performance, Ideal for RVers' Everyday Use
FOGATTI RV Tankless Water Heater, InstaShower 8 Plus, Gen 2, with 15 x 15 inches White Door and Remote Controller, DC 12V, Best High Altitude Performance, Ideal for RVers' Everyday Use
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Rheem 11kW 240V Tankless Electric Water Heater
16% Off
Rheem 11kW 240V Tankless Electric Water Heater
Rheem 11kW 240V Tankless Electric Water Heater
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$480
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Tankless Water Heater Descaler, Highly Effective Descaler Restores Heating Efficiency - Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Easy to Use, Quart, 32 fl oz
Tankless Water Heater Descaler, Highly Effective Descaler Restores Heating Efficiency - Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Easy to Use, Quart, 32 fl oz
Tankless Water Heater Descaler, Highly Effective Descaler Restores Heating Efficiency - Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Easy to Use, Quart, 32 fl oz
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Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, Small Grey
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GEESEN Tankless Water Heater Electric 27kW 240V, Instant On Demand Endless Hot Water Heater with Digital Temperature Display Point of Use for Residential Whole House Shower, ETL Certified
9% Off
GEESEN Tankless Water Heater Electric 27kW 240V, Instant On Demand Endless Hot Water Heater with Digital Temperature Display Point of Use for Residential Whole House Shower, ETL Certified
GEESEN Tankless Water Heater Electric 27kW 240V, Instant On Demand Endless Hot Water Heater with Digital Temperature Display Point of Use for Residential Whole House Shower, ETL Certified
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$339
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Tankless Water Heater Descaler - Quart (32 oz) Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Easy Use
Tankless Water Heater Descaler - Quart (32 oz) Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Easy Use
Tankless Water Heater Descaler - Quart (32 oz) Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Easy Use
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Clearflow Solutions Tankless Water Heater Descaler - Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Nontoxic, Biodegradable, Made in USA! 32 Ounce (Quart)
Clearflow Solutions Tankless Water Heater Descaler - Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Nontoxic, Biodegradable, Made in USA! 32 Ounce (Quart)
Clearflow Solutions Tankless Water Heater Descaler - Premium Descaler for Tankless Water Heater Systems, Restores Heating Efficiency, Nontoxic, Biodegradable, Made in USA! 32 Ounce (Quart)
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Tankless Water Heater Electric 110V, 3000W Instant Electric Water Heater, Under Sink Water Heater with Digital Display, On Demand Hot Water heater Electric for Kitchen Bathroom Washin
9% Off
Tankless Water Heater Electric 110V, 3000W Instant Electric Water Heater, Under Sink Water Heater with Digital Display, On Demand Hot Water heater Electric for Kitchen Bathroom Washin
Tankless Water Heater Electric 110V, 3000W Instant Electric Water Heater, Under Sink Water Heater with Digital Display, On Demand Hot Water heater Electric for Kitchen Bathroom Washin
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$74.55
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VEVOR Gas Tankless Water Heater, 4.3Gal Indoor 100000 BTU Instant Hot Water Heater, Smart Temperature Control & Clear LED Display & Multiple Security Protections for Whole House,Silver Gray
VEVOR Gas Tankless Water Heater, 4.3Gal Indoor 100000 BTU Instant Hot Water Heater, Smart Temperature Control & Clear LED Display & Multiple Security Protections for Whole House,Silver Gray
VEVOR Gas Tankless Water Heater, 4.3Gal Indoor 100000 BTU Instant Hot Water Heater, Smart Temperature Control & Clear LED Display & Multiple Security Protections for Whole House,Silver Gray
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