Super Supreme 18 Kw Electric Tankless Water Heater

by Super Supreme
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ITEM# 14845888
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ITEM#: 14845888

Achieve endless hot water while still saving on your energy bills with this energy-efficient water heater from Super Supreme. This smart water heater has an on-board circuit board to supply optimum heating.

  • Type: Electric tankless water heater
  • Brand: Super Supreme
  • Temperature range: 125 degrees
  • Voltage: 208-240 volts
  • Color: White
  • Materials: Aluminum/ brass/ copper
  • Dimensions: 12.5 inches high x 10 inches wide x 3 inches deep
  • Energy Saver
  • Settings automatically controlled by circuit board
  • 80 AMP breaker required to install this unit
  • 4 AWG cable required to install this unit
  • .5 inch compression fittings included for plumbing connections
  • Must use 18 inches of copper tubing into and out of the unit
  • This unit is great for whole house in southern states
  • Great unit for 2 plus bathroom houses in northern states

Assembly Required.

According to Federal Law Magnuson-Moss Warranty Act (P.L. 93-637) All Appliance manufacturers must be given the opportunity to attempt to repair any of their appliances before it can be returned or exchanged. For more information please click here.


Material Aluminum
Type Tankless
Color White
Fuel Type Electric
Wattage 200-400 Watts
Dimensions See Details
Warranty 1 year Limited Manufacturer
Model Number G-220
Country of Origin United States

Product Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Most Recent

  • great service
    Verified Purchase

    the only issue I have is that i have to reset it almost every day

    Read More
    greetspr Dec 22, 2014
  • Not satisfied
    Verified Purchase

    We live in Louisiana. We were hoping that this would solve our hot water quantity problem. It did not. Half the time it does not work. Went over ALL the trouble shooting guides, which there are many and still did not solve problem. This has turned out to be less reliable than our original hot water heater. At least with the traditional hot water heater you have water to start. With this tankless one, sometimes it worked and sometimes it did not. Very disappointed.

    Read More
    dcbsmb Mar 15, 2013
  • Verified Purchase

    Read More
    Ramona A. Jun 25, 2016

Questions & Answers

  • Q:

    "Why did you choose this product?"

    • A:

      i nead mor then 5GPM hat wother

  • Q:

    "is this a reconditioned product or is it new?"

    • A:

      Hello demi1962, This water heater is brand new, not refurbished. I hope this information helps. Thanks for shopping with us!

  • Q:

    "How many amps does your electrical service need to install and operate these electric water heaters. I've been told that the average home (running 2 or 3 appliances at a time) will have to make an expensive upgrade to make them usable. What do I need to switch over to a tankless heater"

    • A:

      Hello wicked49, I'm sorry this information is not available. If this information does become available we will let you know. Have a great day!

  • Q:

    "If it's a limited warranty what does that mean because the website that I found on the heating system says it's one year on electronics and 10 years on the actual part of the water flows"

    • A:

      This item does come with a one year limited manufacturer warranty. This does include one year for electronic components and ten years for the tank. Please contact the manufacturer for further information on the warranty.

  • Q:

    "Is the warranty still there one year electrical and 10 years tank"

    • A:

      It is a Limited Manufactures Warranty.

  • Q:

    "What is the GPM of this unit?"

    • A:

      This unit will produce 4.2 gallons of hot water per minute.

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Shipping & Returns

Contact Information
Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
Standard shipping details
Expedited shipping details

Standard Return Policy:

Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.