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iHeat Magnum S16 Whole House Tankless Water Heater 16KW

$ 320.00

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Perfect for 2 baths in warm climates.

Just like the S-12, The S-16 whole house tankless water heater is part of the iHeat Magnum lineup. With 16 KW of heating power this tiny heater is more powerful than the S-12 and more than capable of supplying hot water to your entire house or condo and then some. Made for southern climates and warm to moderate incoming water temperatures, the Magnum S-16 tankless water heater will supply a water temperature rise of 95 degrees F at 1 GPM and 48 Degrees at 2 GPM. Complete with a 3 year warranty on all electronics and 10 year warranty on water carrying components you can rest assured that you will have a hot water work horse for years to come. Couple that with energy and space savings and you can see how this heater will pay for itself in no time at all!

  • Indicator lights and power button for easy operation
  • Sleek design to maximize space saving benefits
  • Industry approved hexagonal thread backing
  • Very easy to install
  • Cover: Stainless Steel
  • Heat Exchanger: 100% Stainless Steel
  • Element: Brass Flange/Copper
  • 10 year warranty on Heat Exchangers
  • 3 year warranty on electrical components
Tech Specs
  • Pipe Fittings: 1/2"
  • 16 KW at 240V
  • Double Pole 70 Amp Breaker Required, 6/2 Wire
  • Dims: 11.5" x 9" x 4.5" inches
  • Weight: 7 lbs

Drakken iHeat tankless water heater installation diagram for S16


    Ask a Question
    • Does this unit come with a warranty?

      All iHeat brand water heaters feature a 3-year warranty on all electrical components, as well as a 10-year warranty against any internal leaking components of the unit.

    • What size fittings does this unit have?

      The iHeat S16 tankless water heater uses 1/2” fittings on both the inlet and outlet.

    • What electrical specifications are required for this unit?

      The iHeat S16 tankless water heater runs on 240 volts, and calls for a double pole 70amp breaker and 6/2 wire (6 gauge).

    • How many bathrooms can this water heater provide hot water for?

      The iHeat S16 tankless water heater has 16KW of heating power, which can provide hot water for up to 2 baths in warm climates, or up to 1-1.5 baths in cold/moderate climates.

    • What is the GPM ( galloons per minute)?

      6 GPM @ 60 PSI

    • how to set the temperature

      Use "up" arrow to increase temp. Bottom arrow to decrease. Center button turns unit on/off.

    • Can I use 36" stainless 1/2" flex connectors on inlet and outlet of S16?

      Yes, when installing your iHeat S16 tankless water heater, you may decide to use stainless flex connectors as opposed to copper piping stemming from the unit, which may be ideal in some instances where you are limited in your installation space.