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ThermoMate Mini Tank Water Heater Electric UL Listed, ES400B 4 Gallon Point of Use Under Sink Water Heater, 120V Corded Wall or Floor Mounted
Brand: thermomate
Condition: Used
$18374
$19999
-9% Save $1625
Updated: 2 days ago
Description
IMMEDIATE HOT WATER - 4 Gallon point of use water heater to supply instant hot water on demand at your sink. 24 hours standby, foam insulation and fast reheating, eliminate the long time wait and wasting water
EASY TO INSTALL - 1/2" NPT connector, corded plug into 120V outlet, simply tap into the water line and install the heater directly at the sink. Temparature & Pressure relief valve included, shelf, wall or floor mounted
COMPACT DESIGN - Small tank water heater (12.6"W X12.4"D X24.3"H including valve), space saving design ideal for under sink placement in kitchen, bathrooms and other areas, even fitting in a cabinet
ENAMEL COATING GLASS LINED - Gold porcelain linning for better insulation and preventing leaking, CSA T&P Relief valve CASH USA made, UL certified ensuring a safe long service life
IN-LINE OR INDEPENDENT - Serves as single point water heater or in-line as a booster to a larger hot water heater, knob to adjust temp between 68℉-140℉
ThermoMate ES-B Series Mini Tank Electric Hot Water Heater
ES-B Series mini tank point of use electric water heater is a good fit for specialized applications and tight spaces such as garages, workshops and under/near sinks. Lightweight and compact comes with a wall mounted bracket for easy installation. MT series water heater is designed to last, featuring a single stainless steel heating element, protective anode rod, and fused ceramic glass-lined tank designed to reduce tank corrosion. A temperature and pressure relief valve enhances your safety.
ES-B Series mini tank point of use electric water heater is a good fit for specialized applications and tight spaces such as garages, workshops and under/near sinks. Lightweight and compact comes with a wall mounted bracket for easy installation. MT series water heater is designed to last, featuring a single stainless steel heating element, protective anode rod, and fused ceramic glass-lined tank designed to reduce tank corrosion. A temperature and pressure relief valve enhances your safety.
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Product Details
- SKU:
- awhd-us-b0ccj3ps9j
- Model:
- ES400B
- Country:
- US
- ASIN:
- B0CCJ3PS9J
- UPC:
- 850052972028
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $16 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for thermomate products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.




