Model # S-4

Internet #205651091

IHeat 4 kW Real-Time Modulating .75 GPM Electric Tankless Water Heater


4 kW Real-Time Modulating .75 GPM Electric Tankless Water Heater

  • Can support 1 small hand washing sink application
  • Consult electrician.Requires 30 Amp Single Pole Breaker
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
$20900 /each
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Frequently Bought Together

Product Overview

The IHeat S-4 electric tankless water heater is the perfect product for point of use applications. The S-4 has been manufactured in to handle 1 hand sink in the warmer climates. FL, GA, TX, LA and AZ. It’s small enough to be installed underneath a kitchen sink, or bathroom vanity, and since it’s electric you do not need to install costly exhaust pipes. The M series comes equipped with a digital display allowing you to choose a range of temperatures from 80 degree F to 140 degree F, (DOE recommends setting heaters at 120 degree F).

  • IHeat tankless S series is a lead free certified product
  • IHeat tankless S series electric tankless water heater it’s manufactured in complete stainless steel boasting an IXP-4 water proof construction, the IHeat tankless stainless steel construction is a perfect fit for any applications near the ocean, like beach front properties, yachts, small boats, resorts and outdoor kitchens
  • IHeat tankless S series can also be used in highly sterile applications like commercial kitchens, hospitals, clinics, and even schools where cleanliness is of the highest importance
  • IHeat tankless S series saves valuable space with its compact size, the S series compared to tank type water heaters, is small enough to fit any under counters installations, or even closets
  • IHeat tankless water heater saves you up to 60% on your water heating costs, as its patent pending closed loop modulation and also with an industry leading activating quarter GPM activating flow rate allows you to enjoy safe efficient and calculated power draw based on your behavioral use of the heater, using real time data
  • Water proof construction allows you to easily and safely control the temperature by using our water proof interactive touch pad, allowing you to choose a range of temperatures from 80 degree F to 140 degree F (DOE recommends setting heaters at 120°F)
  • IHeat tankless water heaters come with an easy to acquire product warranty, we understand not everyone is a certified electrician, and not everyone is a contractor, therefore all we ask for you to have your warranty honored is a simple copy of your proof of purchase and we will honor the Industry simplest and most effective 3 year internal electrical components, and 5 year due to leaks limited warranty
  • Choose the correct iHeat Tankless Water Heater by identifying incoming water temperature and the maximum flow rate desired

    Drakken Tankless Water Heater

  • Choose the correct iHeat model for your household needs

    Drakken Tankless Water Heater S Model

  • Make sure the model you choose services your household applications

    Drakken Tankless Water Heater Buying Guide

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)
Water Connection Size (in.)
1/2 in. Compression, NPT Adapters available upon request


Amperage (amps)
Application Type
Point of Use
Electric Product Type
Point of Use
Finish Family
Stainless Steel
Flow Rate @ 35 F Rise (gallons/min)
Flow Rate @ 45 F Rise (gallons/min)
Flow Rate @ 55 F Rise (gallons/min)
Flow Rate @ 65 F Rise (gallons/min)
Fuel Type
Maximum Temperature (F)
Minimum Activation Rate (gpm)
Minimum Temperature (F)
Product Weight (lb.)
Water Connection Location
Bottom & Side
Water Heater Features
Overheat Protection,Wall Mountable
Wattage (watts)

Warranty / Certifications

Certifications and Listings
2-UL Recognized,ETL Listed,NSF Listed
Labor Warranty
No Warranty
Part Warranty
3 Year

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Customer Questions & Answers


Asked by: Neo
This does not have a capacity.
Answered by: CommunityAnswer
Date published: 2016-03-17

Is this set up for an in hose bub and an out hose bib?

Asked by: Doc
  • y_2017, m_8, d_18, h_8CST
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Customer Reviews

4 kW Real-Time Modulating .75 GPM Electric Tankless Water Heater is rated 3.0 out of 5 by 2.
Rated 1 out of 5 by from Don't buy My heater broke. I called and emailed them But they don't return calls. When I finally got who claimed he was the owner on the phone, he was very rude and expected me to buy another one then maybe he would refund my money after they received my broken one back. Buy from another company that will stand behind their products.
Date published: 2017-03-04
Rated 5 out of 5 by from Works great Installation was easy just followed directions hot water works great for a bathroom
Date published: 2017-03-07
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