Today's Best Water Heater Deals On Amazon
Prices as of Nov 4, 2026, 7:08 PM ETDetails
Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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-5%
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-19%
RheemRheem RTG Series 7.0 GPM Natural Gas Tankless Water Heater Indoor | 160,000 BTUs High Efficiency On Demand, Continuous Hot Water | Non-Condensing
$653.00List:See Deal On Amazon$804.00 -
-17%
thermomateTankless Small Water Heater Electric 120V 29.2Amp, ThermoMate 3500W On Demand Instant Hot Water Heater with Temperature Display for Kitchen Bathroom Sink Faucet, ETL Certified
Deal, ends Nov 5$108.29Was:See Deal On Amazon$129.99 -
-6%
GEGE Appliances 18 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
$296.65Was:See Deal On Amazon$315.00 -
-5%
Orbek14kW Tankless Water Heater Electric ORBEK On Demand Heater 240V 3.38GPM | 3s Instant Heating, 98% Efficient. LED Shows, 3.38 GPM, ±1℉ Precise Control, ETL Certified
$218.47List:See Deal On Amazon$229.97 -
-19%
WestinghouseWestinghouse 14kW Tankless Water Heater Electric 240V, Wifi, ETL, Gray | Max 3.4GPM, 2 Point of Use, 86-140℉ Temp.Range, ETL Certified, Compact, Smart Wifi Compatible with Alexa & Google Home
Deal, ends Nov 4$254.99List:See Deal On Amazon$315.99 -
-15%
WestinghouseWestinghouse 24kW Tankless Water Heater Electric 240V Whole House, Wifi | Max 5.55GPM, Whole Home 2-3 Bathroom, ETL Certified, Space-Saving, Smart Wifi Compatible with Alexa & Google Home
Deal, ends Nov 4$424.98List:See Deal On Amazon$499.99 -
xwdzswgs110V Tankless Water Heater Electric, 3000W Tankless Electric Water Heater Instant, Under Sink Water Heater with Digital Display, On Demand Hot Water Heaters Electric for Kitchen Washin Bathroom.
$59.98See Deal On Amazon -
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RinnaiRinnai RX199iN Condensing Smart Sense Tankless Water Heater | 11.1 GPM, 199k BTU, Smart Sense Supports Natural Gas or Propane, and Indoor/Outdoor, Endless Hot Water, Save Space
$1,703.10See Deal On Amazon -
xwdzswgsTankless Water Heater Electric 110V, 3000W Instant Water Heater Under Sink, On Demand Hot Water Heater Electric with Digital Display, Electric Mini Water Heater for Kitchen Bathroom Washin
$54.98See Deal On Amazon
What Counts As A Real Black Friday Water Heater Deal?
Water heater deals only help if the unit suits your home. A heater with the wrong voltage or gas type is a hassle to return.
Check these carefully:
- Power: a 240V unit may need a dedicated breaker, while 120V models are smaller and weaker.
- Output: kilowatts for electric, gallons per minute for gas.
- Fuel: natural gas or propane, and venting needs.
- Flow demand: how many fixtures run at once.
- Warranty and whether installation is included.
A 110V point-of-use unit for a single sink is a different product from a whole-house heater, even if both say tankless.
Which Water Heater Should You Buy?
The grid lists Rheem electric and gas tankless heaters, Westinghouse 14kW and 24kW units, Rinnai's condensing gas model, a GE 18 gallon plug-in tank heater and small 110V point-of-use units. Pick by hot water demand, not size.
| Type | Suits | Watch for |
|---|---|---|
| Electric tankless, 18 to 24 kW | Small to mid homes with 240V service | Breaker and wire gauge |
| Gas tankless (Rheem, Rinnai) | Whole-house hot water | Venting and gas line |
| Condensing gas | Higher efficiency | Needs a drain for condensate |
| Plug-in tank (18 gallon) | Apartments, small spaces | Limited hot water |
| 110V point-of-use | One sink or tap | Not for showers |
Ask an electrician or plumber to confirm the fit. 7 of the 12 items are discounted right now.
When Do Water Heater Deals Drop?
Black Friday 2026 is Friday, November 27, Thanksgiving is November 26 and Cyber Monday is November 30. Amazon has not announced 2026 Black Friday Week dates. In 2025 it ran November 20 to December 1.
Appliance discounts often appear across several weeks. Early Black Friday deals are live on Amazon, and a Limited time deal badge shows when a price ends.
Best Buy plans main deals November 19 to 28. Amazon does not match competitor prices, so compare before checkout.
Frequently Asked Questions
Is a tankless water heater worth it?
It saves space and gives endless hot water, but electric models need strong wiring and gas models need venting.
How many kW do I need?
It depends on flow and incoming water temperature. Ask the manufacturer's sizing guide or an installer.
Can I install a water heater myself?
Gas and 240V work are best left to a licensed installer, and may be required by code.
Do water heater prices drop on Black Friday?
Some do. The grid lists current markdowns, updated daily.
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