Internet #205640767

Model #S-16

Store SKU #1001250215

16 kW Real-Time Modulating 3.5 GPM Electric Tankless Water Heater

  • Provides ample hot water for households with up to 3 people
  • Consult electrician.Requires 1-70 Amp Double Pole Breaker
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
  • See More Details
$23970

Frequently Bought Together

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Price:
$23970

Product Overview

The IHeat Electric Tankless Water Heater Model S-16 has the capacity of heating 3.5 GPM which is the equivalent to 2 showers (at 1.5 GPM each), and 1 sinks (at 0.50 GPM each) simultaneously, or any combination which equals to 3.5 GPM. The S-16 can handle these applications in the warmer climates of the US which are Florida, Georgia, Louisiana, Texas, Arizona, California, Alabama, and Mississippi. Anything north of these States the Model S-16 can be used for point of use, or 1- application at a time. A good rule of thumb is if you live in the southern states mentioned here the S-16 can power a 3 to 4 bedroom 2-1/2 bathroom home, including dishwasher and clothes washer, please keep in mind that tankless water heaters are designed to heat incoming water at a maximum output temperature based on simultaneous use and inlet water temperatures. So if your demand for hot water decreases your output water temperatures will increase, as well as if you live in the colder states this S-16 will heat less volume of water, this will cause the S-16 to be used in Point of Use applications in the colder climates.
  • IHeat tankless S series is a lead free certified product
  • IHeat tankless S series electric tankless water heater its 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° F to 140°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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16 kW Real-Time Modulating 3.5 GPM Electric Tankless Water Heater
Performance 11 kW Self-Modulating 2.15 GPM Tankless Electric Water HeaterEEM24027 Tankless Electric Water Heater 27 kW 240 V
BrandIHeatIHeatRheemEemax
Name9 kW Real-Time Modulating 2 GPM Electric Tankless Water Heater16 kW Real-Time Modulating 3.5 GPM Electric Tankless Water HeaterPerformance 11 kW Self-Modulating 2.15 GPM Tankless Electric Water HeaterEEM24027 Tankless Electric Water Heater 27 kW 240 V
Price
$18192
$23970
$25900
$46012
Ratings
(79)
(79)
(881)
(9)
Flow Rate @ 45 F Rise (gallons/min)1.00 gal (US)/min2.00 gal (US)/min1.67 gal (US)/min4.2 gal (US)/min
Indoor/OutdoorIndoor,OutdoorIndoor,OutdoorIndoorIndoor
Wattage (watts)9000160001100027000
Application TypeResidentialResidentialResidentialResidential
Water Heater FeaturesOverheat Protection,Wall MountedOverheat Protection,Wall MountedWall MountedDigital Display,Wall Mounted
Fuel TypeElectricElectricElectricElectric
Commercial/ResidentialResidentialResidentialResidentialResidential
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
3.5
Product Height (in.)
11.7
Product Width (in.)
7.7
Water Connection Size (in.)
1/2 in. Compression, NPT Adapters available upon request

Details

Amperage (amps)
66
Application Type
Residential
Commercial/Residential
Residential
Electric Product Type
Residential
Finish Family
Silver Metallic
Flow Rate @ 35 F Rise (gallons/min)
2.00 gal (US)/min
Flow Rate @ 45 F Rise (gallons/min)
2.00 gal (US)/min
Flow Rate @ 55 F Rise (gallons/min)
1.5
Flow Rate @ 65 F Rise (gallons/min)
1.5
Fuel Type
Electric
Heat Exchanger Warranty
1 Year
Indoor/Outdoor
Indoor,Outdoor
Maximum Temperature (F)
140
Minimum Activation Rate (gpm)
0.5
Minimum Temperature (F)
80
Pack Size
1
Product Weight (lb.)
7.5
Required Volt Connection
240 volt
Returnable
180-Day
Uniform Energy Factor
9.99
Water Heater Features
Overheat Protection,Wall Mounted
Wattage (watts)
16000
Wattage (watts)
16000 W

Warranty / Certifications

Certifications and Listings
ANSI Certified,CSA Certified,ETL Listed,UL Recognized
Labor Warranty
1 Year
Part Warranty
5 Year

Questions & Answers

87Questions12Answers

is it damaged at below freezing temperature when not in use?

Asked by chucki August 16, 2020
0
Answers

does this water heater have a UL rating?

Asked by Gigi July 26, 2020
0
Answers

How to set temperature? I pressed the Up & Down arrow buttons to adjust temperature, however it...

Asked by VVBJ July 16, 2020
0
Answers

My inlet water temperature can fluctuate from 60 to 80 degrees. Will this unit accommodate this f...

Asked by mick May 31, 2020
0
Answers

The S-16 specs say its indoor/outdoor. But the unit itself is outdoor

Asked by Adrian May 28, 2020
3
Answers

I’ve had this unit for about three years now. I installed it outdoors for an outdoor shower next to our hot tub. I’ve had no problems with it and it works great for my application. Mine is installed outdoors with no cover or anything covering it from the elements. It’s relatively small and it doesn’t burn anything so you can install the unit indoors in a fairly small space.

is it energy star

Asked by tuf April 1, 2020
3
Answers

Not sure but my electric bill definitely reflected obvious savings. I've had mine 2 years now, I believe.

is it outdoor?

Asked by Jass February 8, 2020
1
Answer

yes. semi enclosed area. used for coin operated washer. Replaced a tank heater. Would replace all tank heaters if electrical service would support them.

Does Home Depot carry the heating elements and thermostat for IHEAT tankless water heater?

Asked by Gloria February 6, 2020
3
Answers

NO! Do not open the back, ever.

What is the filter for this model

Asked by Vickey December 4, 2019
1
Answer

It is recommended to have a scale filter for this.

How do I get a manual for this model and what is a 32 error code?

Asked by rucasue October 24, 2019
1
Answer

You can find the manual under Info & Guides and 32 error code means that the sensor is faulty and needs to be replaced.

16 kW Real-Time Modulating 3.5 GPM Electric Tankless Water Heater - page 2

Customer Reviews

  • 79 Customer Reviews
  • 3.8 out of 5 stars overall
79% of customers recommended.
Overall Ratings
5star-icon(39)
4star-icon(16)
3star-icon(5)
2star-icon(5)
1star-icon(14)
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Works great. Plenty hot water. Supplies bathroom shower, kitchen sink, washing machine. Do your r...
Works great. Plenty hot water. Supplies bathroom shower, kitchen sink, washing machine. Do your research. Look at the water lines orientation and understand how it will affect your installation. Also any electric changes. Ordered from an online sale. Saved almost $100. Home Depot will watch your back if there are any pronlems with your products.
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Warning: Our incensed plumbers did not use the supplied compression couplings (which are not a st...
Warning: Our incensed plumbers did not use the supplied compression couplings (which are not a standard thread): Couplings leaked after several attempts; finally received new fittings from Iheat to repair the unit. USE THE FITTINGS SUPPLIED FROM THE MANUFACTURER FOR 14 kW Real-Time Modulating 3 GPM Electric Tankless Water Heater.
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1
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This tankless water heater was fairly easy to install. Reasonably priced for outdoor rated. Very ...
This tankless water heater was fairly easy to install. Reasonably priced for outdoor rated. Very pleased with this unit.
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0
I bought this to replace a small, conventional water heater that served one shower and sink in an...
I bought this to replace a small, conventional water heater that served one shower and sink in an apartment in my house. Other brands were either too big or too small; this one was just right. I was concerned that it might not raise the water temperature enough here in Washington but it produces very hot water. Another cool thing is it's small enough to fit between the studs. The only thing is, I can't figure out how to regulate the temperature on the unit, but otherwise, it's perfect. I purchased a scale filter to go with it to prolong the life and insulated the wooden access door to prevent freezing (it's on an outside wall, as shown in the picture). Note that you will need a 220 volt, 60 amp circuit to power this little guy.
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4
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We live in Ohio in a two bedroom, one bath home. There are only two of us and have a 100 amp main...
We live in Ohio in a two bedroom, one bath home. There are only two of us and have a 100 amp main with a 60 amp breaker for the hot water. We didn't figure we needed much but past experiences with tankless heaters taught us that we at least wanted to get a full flow shower. We have it with this one! It delivers what it says! Of course, if you run water any where while in the shower it effects the temperature, but it will bounce back right away. So only do one thing at a time :) With only two of us, this is easily done. Hook up was a breeze with new push fittings on the market. I gave this water heater a four because I voided the warranty by hooking it up myself. With such a simple hook up, I'm disappointed with that. I also haven't had this very long and would like to know if people are still pleased after a couple years. One last thing, we have some of the "cleanest" city water in Ohio and still need a filter before it goes into the water heater because of chemicals and sediment. Do yourself a favor and put one in beforehand and a back flow valve. This should make it last a couple extra years.
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7
0
Unfortunately, these units only work for about 12 months. The the flow switch stops the units and...
Unfortunately, these units only work for about 12 months. The the flow switch stops the units and you have to purchase a replacement. This is our 3rd unit and it is getting very annoying to replace these every year. The manufacturer customer service staff has a terrible attitude and will literally laugh at you over the phone if you just ask for a receipt of your transaction.
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11
0
East Bay, California
Good Unit But Correctly Select The Right Model
Ease of installation :
3
Quality :
4
Value :
3
I purchased this model to replace a Bosch unit that -after three years of stellar service- literally melted and almost caught fire. Apparently, a hot leg inside the unit became disconnected. Compared to the Bosch unit that it replaced, the iHeat S-9 is solidly built. It has a sealed, brushed stainless body compared to a molded plastic one. It has no serviceable parts inside, and to open the unit would void its warranty. Further, the iHeat has an easily adjustable up/down button to adjust the water temperature. It also has a red digital display of the current water temperature. On the iHeat S-9, the water inflow and outflow is through right and left sides respectively via 1/2 inch copper compression fittings. The electrical connection is made through a 2 foot pigtail. Each of these was significantly different to the Bosch unit where water enters and exits the bottom via threaded fittings, and the electrical connections were made inside the unit itself. The installation was consequently not a simple "buy and replace" project but took some time. In addition, the iHeat unit requires that on both inflow and outflow sides, the installer use at least 36 inches of copper pipe. This was somewhat challenging to accommodate in a small kitchen cabinet where I mounted the unit. Over all, however, a DIY job lasting a day with proper planning and material, assuming you have a dedicated 240 circuit to the location. In my opinion, spend some time determining which unit to buy based on the rate of rise necessary given your typical water temperature. In my circumstance, I use the S-9 to heat water coming into my kitchen faucet and dishwasher. I live in the East Bay of San Francisco where our water temperature coming into the unit is typically about 55-60 degrees. While I set the unit for 125 degree output, I have yet to receive this temperature. Typically it produces 115 degree water; good but not exactly what I had hoped. I probably should have gone up a model as my wiring size would have supported that selection, but ...you learn. Also, given my prior experience with the Bosch unit, I recommend a 50 amp 240 volt GFCI breaker that does not require a neutral. The iHeat S-9 draws 41 amps at 240 volts and does not utilize a neutral, only two hot legs and a ground. Having such protection might preclude damage to the unit if one leg becomes disconnected, and of course, is just plain sensible.
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11
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Was limited to 60 amp service. This unit replaced a 3 year old unit, and can handle 2 showers si...
Was limited to 60 amp service. This unit replaced a 3 year old unit, and can handle 2 showers simultaneously; more than the previous one.
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0
I Heat 12 kw
Quality :
5
Value :
5
I purchased this to replace a failed Rheem unit that was purchased locally at Home Depot. I did not want to go with another Rheem, so I ordered this heater instead. The I heat modulated the water better and seems to be built better. The internals of the I heat are stainless steel, vs the soldered copper used in the Rheem. I can appreciate that the the I Heat cost less, is better constructed, works better, and is made in the United States. ;
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Excellent!!!......
Excellent!!!...
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