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Eccotemp EM-4.0 Electric 4 Gallon Mini Tank Water Heater


The Eccotemp EM-4.0 ETL Certified is a point of use Mini-Tank Water Heater with a tank capacity of 4 gallons. It is designed to supply on-demand instant hot water to any faucet or water outlet without the wait. The Eccotemp EM 4.0 is the only real instant hot water mini storage tank designed to fit the needs of our demanding customers. With It's small, compact, and lightweight design, the Eccotemp EM-4.0 is perfect for both residential, commercial, and industrial use.

This mini tank water heater can be used for food trucks, utility rooms, under kitchen or bathroom sinks, RV’s, boats, mobile food carts, offices, and just about any other place instant hot water is needed. Skip the wait at your facet for hot water and install the Eccotemp EM-4.0 Electric Mini Tank Water Heater.

This amazingly affordable efficient Mini-Tank Water Heater can supply hot water for up to two sinks or can be plumbed in series with your existing hot water system to ensure instant hot water whenever you need it. Equipped with easy and accessible temperature controls, a minimal recovery time of 10-20 minutes, and an energy efficiency recovery rating of 98%, the EM-4.0 is the most affordable way to get hot water where you need it. It’s also designed to operate at a maximum of 150 psi water pressure. The easy installation allows for the mini tank water heater to be mounted on a wall or left free-standing and plugs into a standard 110/120v outlet.

  • Plumb in line with your existing water heater or use with standalone sinks. The EM-4.0 Gallon Mini Tank Water Heater is ideal for homes, cottages, kitchenettes, RVs, boats, utility rooms, apartments, condos, and offices
  • Quick recovery rate of 10-20 minutes, adjustable temperature range between 90F and 140F. The maximum tank capacity is 4.0 gallons, heating capacity of 1440 Watts and a 98% energy efficiency recovery rate
  • ETL certified for US and Canadian installation in residential and commercial applications. This mini tank water heater meets and exceeds all efficiency requirements according to the DOE
  • Best in class 5-year limited leak and 2-year defect and labor warranty, live chat, appointments for product support, self-help guides will give you peace of mind that the Eccotemp EM-4.0 Electric Mini Water Heater will keep you in hot water for years
  • Methodically designed for Easy Installation, Inline Installations, Floor or Wall mount installations on both Residential and Commercial applications
  • Purchase includes: EM-4.0 Gallon Mini Tank Water Heater, 1/2-inch temperature and pressure relief valve, mounting hardware, and installation manual


  • Point of Use
  • Garage
  • Cabins
  • Office
  • Salon
  • Tiny Home
  • Apartment
  • Food Trucks
  • Utility Room


  • Tank Size: 4 Gallons
  • Installation: Indoor
  • Color: White
  • Model: EM-4.0
  • Power Type: AC
  • Voltage: 110/120V
  • Amps: 12 Amps
  • Temperature Range: 90°-140°F
  • Water Connection: 1/2" NPT
  • Certification: ETL
  • Weight: 22 lbs
  • Product Dims: 16.5"x15"x12.25"
  • Packaging Dims: 17.5"x17.25"x15.75"
  • Accessories: Mounting Bracket & Screws, T&P Valve
  • Material: Plastic/Steel

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