Search  for anything...

ThermoMate Tank Water Heater Electric, 6 Gallon Small Point of Use Residential Hot Water Heater, 1500W 120Volt Compact, Adjustable Thermostat, UL Listed (ES600)

  • Based on 0 reviews
Condition: New
Checking for the best price...
$259.99 Why this price?

Buy Now, Pay Later


As low as $43.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Apr 21
Order within 19 hours and 4 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: 6 Gallons


Features

  • 6 Gallons point of usemini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Hard-wired installation required (power cord included for optional installation); Built-in thermostat for adjusting temperature between 90F and 150F
  • 16inch low profile 14.75x19.14 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.

Brand: thermomate


Capacity: 6 Gallons


Power Source: ac


Product Dimensions: 14.75"W x 16.14"H


Special Feature: Power cord included for optional installation, UL Certified, Metal housing, Corrosion resistant tank, INCOLOY 800 stainless steel heating element See more


Brand: ‎thermomate


Product Dimensions: ‎14.75"W x 16.14"H


Special Feature: ‎Power cord included for optional installation, UL Certified, Metal housing, Corrosion resistant tank, INCOLOY 800 stainless steel heating element


Color: ‎White


Wattage: ‎1500 watts


Voltage: ‎120 Volts (AC)


Maximum Temperature: ‎150 Degrees Fahrenheit


Heat Output: ‎5120 British Thermal Units


Efficiency: ‎Energy-efficient


Maximum Operating Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Floor


Is Electric: ‎Yes


Manufacturer: ‎thermomate


Item Depth: ‎16.14inch


UPC: ‎850073127360


Manufacture Year: ‎2025


Item Weight: ‎26 pounds


Item model number: ‎ES600


Special Features: ‎Power cord included for optional installation, UL Certified, Metal housing, Corrosion resistant tank, INCOLOY 800 stainless steel heating element


Included Components: ‎Water Heater x1, T&P Relief Valve x1, Dedicated Plug x1


Batteries Required?: ‎No


Date First Available: December 30, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 21

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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

  • 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

  • Pretty nice little heater, but thermostat is not very accurate
Style: 1.32 Gallons
Very compact and looking nice. I finally have hot water quick in my entrance restroom sink. Actually makes for a great comfort in cold months! Temperature gauge is not accurate though, whatever level you set it, sometimes it’s hot, sometimes just warm, so inner thermostat is not that good if I compare to my Stiebel Eltron heaters (they wouldn’t fit the tight space). Otherwise hope for long service. ... show more
Reviewed in the United States on October 17, 2025 by Russ

  • Good value. Quick delivery!
Style: 18 Gallon
Seems well made. Works well so far (about 3weeks). Wish there were side handles.. box would not ft through door and sides are slippery! Rubber gloves helped.
Reviewed in the United States on December 5, 2025 by Amazon Customer

  • Happy wife!
Style: 1.32 Gallons
The unit fit easily under our kitchen sink. Connection was easy, it took 10-15 minutes. We have a tankless water heater system. My wife always complained about having to run so much water down the drain before it would get hot. Now hot water is nearly instantaneous. Happy wife happy life.
Reviewed in the United States on December 31, 2025 by Captain D

  • Works magnificent for small spaces
Style: 1.32 Gallons
Had minimal room, under my kitchen. Turn water off between washing each item, once you have emptied the tank it will not eminently get hot again. You may need to an larger tank if you have the room
Reviewed in the United States on November 22, 2025 by Amazon Customer

  • Buena compra
Style: 10 Gallons
Lo compré en verano y dije que realmente lo probaría en invierno y puedo decir que me ha sido súper útil en este clima de invierno, la verdad tiene buena capacidad
Reviewed in the United States on February 4, 2026 by Raiza Grisel Gullo Prieto

  • DO NOT BUY THIS JUNK...
Style: 2.5 Gallons
TERRIBLE PRODUCT AFTER A FEW MONTHS IT SPEWS BROWN WATER OUT OF THE OUTLET AND DOESN'T HEAT AS WELL, HAS BEEN A PROBLEM FROM THE GET GO, WILL ESCALATE TO THE BETTER BUSINESS BUREAU
Reviewed in the United States on February 6, 2026 by Dan Dan

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...