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Thermomate Tank Water Heater - 10 Gallon Point of Use Hot Water Heater, 120V 1500W, Adjustable Thermostat, UL Listed (ES1000)

  • Based on 415 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jun 5
Order within 19 hours and 18 minutes
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Style: 10 Gallons


Features

  • 10 Gallons point of use provide enough hot water for sink washing, dishwasher, washing machine or 10 - 15mins quick shower. Factory set temperature to 125F. It can be adjusted between 90F and 150F through built-in thermostat
  • 24.5-inch low profile compact small water heater (120 Volt Hard Wired), independent installation or as booster in-line with a large hot water source, ideal for kitchen & bathroom sink, RV & boat, vacation cabin & camper, garage & barn, shop & salon
  • 1500W INCOLOY-800 heating element - better corrosion resistance performance and more efficient than copper at higher temperature, thus has a longer life span and energy saving
  • Corrosion Resistant Tank Inner tank was coated with porcelain enamel glass, which has better performance in resistant to high temperature and rust, reducing leaking chance, thus ensuring a long life service and low maintenance
  • UL Listed safety including ASME, ANSI and CSA (AGA) approved T&P relief valve, independent drain port, high temperature limit protection and adjustable thermostat
  • Peace of Mind - Water connection: 3/4" NPT; Electrical requirements: 1500W at 120 Volts (AC); Recommended circuit breaker: 15AMP;Maximum water pressure: 150 PSI. 3 years warranty and lifetime customer service.

Brand: thermomate


Capacity: 10 Gallons


Power Source: 120V AC Hardwired


Product Dimensions: 14.75"W x 24.5"H


Special Feature: Corrosion resistant tank, INCOLOY 800 stainless steel heating element, Metal housing, UL Certified


Power Source: 120V AC Hardwired


Special Features: Corrosion resistant tank, INCOLOY 800 stainless steel heating element, Metal housing, UL Certified


Wattage: 1500 watts


Voltage: 120 Volts


Maximum Temperature: 150 Degrees Fahrenheit


Heat Output: 1500 Watts


Efficiency: 99%


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Floor Mount


Is Electric: Yes


Color: White


Style Name: 10 Gallons


Material Type: Stainless Steel, porcelain enamel


Capacity: 10 Gallons


Item Dimensions W x H: 14.75"W x 24.5"H


Item Weight: 40 Pounds


Item Depth: 14.95 inches


Brand Name: thermomate


Model Number: ES1000


Manufacturer: thermomate


UPC: 850053435683


Manufacture Year: 2024


Included Components: ASME, ANSI and CSA (AGA) approved T&P Valve


Item Type Name: Electric tank water heater


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Works great. I added a switch.
Style: 2.5 Gallons
This is quick to heat water and it stays warm in the tank for a surprisingly long time. Easy to install, at least for me (under the kitchen sink). I plugged this into the same under-sink electrical outlet that powers my dishwasher and disposer. To prevent an electrical overload and operate the water heater only when needed (and NOT when operating those other items) I added an "Ortis Router Table Switch with Large Stop Sign Paddle" just inside the sink cabinet. I only need to tap the paddle with my foot in order to cut power to the water heater. This item is also on Amazon and works great. ... show more
Reviewed in the United States on January 5, 2026 by D OC

  • Simple and easy
Style: 1.32 Gallons
Works great
Reviewed in the United States on April 13, 2026 by Leonel Morales

  • Ok but not perfect.
Style: 1.32 Gallons
Bought the 1.3 gal as a preheater for a kitchen faucet that has a long pipe run to the house water heater. It works ok for this purpose but as many other people have said, the temperature is not consistent. This may be due to water stratification or a cheap temperature sensor. Don't know but it's bad enough that you don't want to use it for a shower. The water temp just varies too much. I also plan to remove and clean the unit every year and clean/check the replaceable anode rod. Last thing I need is for this thing to leak water on the kitchen floor. ... show more
Reviewed in the United States on April 13, 2026 by PKN

  • Instant hot water when its needed
Style: 2.5 Gallons
Perfect for any outdoor cook space where there is only cold water. Fits under any faucet. Small size but it holds plenty of hot water
Reviewed in the United States on April 1, 2026 by Jesse

  • Great after 2 months of fairly heavy use
Style: 4 Gallons
So far so good. I’m currently using this to service a hot water recirculating line (and pump) in my house so that I don’t blow out my gas tankless water heater. It gets used a lot and is working great, also it was easy to install.
Reviewed in the United States on February 19, 2026 by Charles Le Pere

  • Looks well made but not sure yet!
Style: 2.5 Gallons
Not sure if I installed it correctly. Constantly needed to reseat the high pressure valve, finally got it done. Not much hot water like in the old electric heaters had the lower element not kicking on. When the light goes off it should be as hot as it gets, but I only get maybe a quart of hot water. I’m still going to work with it, and repost if it fully heats. ... show more
Reviewed in the United States on April 15, 2026 by Railingman

  • water heater
Style: 18 Gallon
Works great. Go ahead and increase the temperature when installing. Best finish i have seen on a water heater in years
Reviewed in the United States on March 30, 2026 by Amazon Customer

  • Perfect for a studio
Style: 18 Gallon
I bought this water heater for my office studio Small kitchenette and a full bath Works great
Reviewed in the United States on March 16, 2026 by Amazon customer

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