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Super Supreme 18 Kw Electric Tankless Water Heater

Included Warranty: 1 year Limited Manufacturer
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ITEM# 14845888
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    Super Supreme 18 Kw Electric Tankless Water Heater
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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

    Technical data:
    • 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

    Recommended usage:
    • This unit is great for whole house in southern states
    • Great unit for 2 plus bathroom houses in northern states

    Assembly Required


    Material Aluminum
    Fuel Type Electric
    Wattage 200-400 Watts
    Dimensions See description
    Warranty 1 year Limited Manufacturer
    Model Number G-220

    Customer Reviews

    5 Stars
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    1 Stars
    • Not satisfied

      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

    Questions & Answers

    Get your product questions answered right here.
    • is this a reconditioned product or is it new?

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

    • 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

      • 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!

    • 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

      • 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.

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

    • What is the GPM of this unit?


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    Shipping & Returns


    Usually leaves our warehouse in 1-2 business days. *

    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.

    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
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    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.