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Eccotemp EM-4.0 Electric 4 Gallon Mini Tank Water Heater

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Overview — Under Sink EM-4.0 Electric Mini Storage Tank Water Heater


The Eccotemp EM-4.0 is a point of use Mini-Tank Water Heater with a tank capacity of 4 gallons and is designed to supply on-demand hot water to any faucet without the wait. Its small, compact and lightweight design allows the Eccotemp EM-4.0 to be perfect for residential, commercial and industrial use and can supply hot water for two or more sinks or 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 and a minimal recovery time of 20 minutes, this Eccotemp Mini-Tank Water Heater is designed to operate at a maximum of 150 psi water pressure. Easy installation allows for the unit to be mounted on a wall or left free-standing and plugs into a standard 110/120v outlet.

Product Dimensions: 16.5"(L) x 15"(W) x 12.25"(D)

Product Features:   
  • ETL certified  
  • Frustration Free Packaging   
  • Tank Volume: 4.0 gallons   
  • Heating Capacity 1440 Watts   
  • Perfect for stand alone sinks   
  • Hot and cold water feed   
  • No need for costly re-circulating lines and pumps     
  • Quick recovery time   
  • Adjustable temperature range 90F to 140F   
  • Voltage 110/120   
  • Runs off 12 AMPS   
  • Single Phase      
  • Standard 1/2" NPT Connections
Suggested Uses:
  • Homes
  • Cottages
  • Kitchenettes
  • RVs
  • Boats
  • Offices
What's in the Box:   
Please Note: Failure to clean and descale your water heater quarterly can result in lime and sediment build up within the heater, which can void your warranty! We recommend using our Eccotemp EZ-Flush System Descaler Kit to ensure a clean, energy efficient, long lasting heater.
All Water Heater purchases will be shipped with SIGNATURE REQUIRED. If you wish to remove SIGNATURE REQUIRED from your shipment please contact Customer Service immediately to have it removed. Please Note: By opting out of SIGNATURE REQUIRED you release Eccotemp Systems, LLC. from all liability of lost or stolen packages.


Warranty — Under Sink EM-4.0 Electric Mini Storage Tank Water Heater

OffGrid Harbor is an Authorized EccoTemp Dealer

Includes all applicable Manufacturer Warranties

Ships direct from manufacturer

Additional Lifetime support from our specialists

Specs — Under Sink EM-4.0 Electric Mini Storage Tank Water Heater

Current Stock:
Availability: Usually ships within 6 - 10 day!
Power Type Electric
Applications Apartment/Condo/Townhome
Applications Cabin
Applications Tiny Home
Applications Point Of Use
Applications Office
Applications Salon
Applications Under Sink
Applications Food Truck
Tank Volume 4 Gallons
Installation Indoor
Color White
Condition New
Map Zone Southern Region
Map Zone Mid Region
Map Zone Northern Region

FAQs — Under Sink EM-4.0 Electric Mini Storage Tank Water Heater

Q: What is the max temperature my tankless water heater can achieve?

Answer: The temperature can vary based on the temperature of the incoming water. Each of our tankless water heaters offer at least a 35-40 degree F temperature rise based on the temperature of your incoming water. You will need to adjust the heater to the preferred temperature.

Q: Why do I need to clean my tankless water heater? Is it really necessary?

Answer: Yes. It is important to clean and descale your unit at least every 6 months to maintain its flawless performance. You can use our Eccotemp EZ Flush Descaler Kit. This will get rid of any water scale, lime, or rust deposit buildup in virtually any piece of water based equipment. Your water heater will run the risk of overheating and can deteriorate its effectiveness if you do not keep up with flushing your water heater.

Q: Can my tankless water heater freeze, even if it's installed indoors in a heated space?

Answer: It depends on the model. The L5, L7, L10, i12, FVI12, & iE Series do NOT come with any anti-freezing technology to help prevent freeze damage. This means that even if your i12 for example is installed indoors, it is not protected from freeze damage. The freeze damage can occur from cold air entering the internal chambers of the water heater via the venting. The 45H/HI, EL22/EL22i, 20H/20HI, all come with a built-in anti-freeze technology in the form of heating blocks. In order to ensure these blocks are doing their job, you must keep your water heater plugged in at all times. These blocks help prevent freeze damage to the heat exchanger, but is NOT a guarantee. Proper installation and maintenance must be followed to ensure that your water heater will last as long as possible.

Q: How do I check for Gas leaks?

Answer: After you have your gas connected to your unit, spray some soapy water or Windex sort of mixture on the connection and if you see bubbles, then you have a leak. If no bubbles, you are good to go with no leaks.

Q: Where’s the pilot light in the Eccotemp tankless water heaters? I can’t seem to find it.

Answer: Our products do not have pilot lights. There is an electronic ignition or battery powered ignition depending on the model of the water heater. The unit will ignite when there is hot water being requested of it and it will go out when you're done using the hot water.

Q: Can I convert my Natural Gas tankless water heater to use Liquid Propane instead?

Answer: No. Unfortunately, there are certain parts within each unit that are gas specific and not able to be converted to any other gas type.

Q: What are the clearances for the installation of my water heater?

Answer: The clearances vary depending on the model, but safely should be: At least 1-2 ft on top, 18" minimum at the bottom, 8-10" left and right, 6" from the wall, 2-3 ft from an open window

Q: What are the fittings made of on the water heaters?

Answer: The fittings are made of steel and all have external threads.

Q: Can I use PVC pipe for my venting?

Answer: Using any other material than what is recommended by CSA standards will void your warranty. You must use Stainless Steel Category II venting.