---
product_id: 39538020
title: "S-16 240V 66A 16KW Stainless Steel Enclosure 7.2\" by 11\" by 3\" 1/2\"CPT 36' AWG#6 Electric Water Heater, 7.5 lb"
brand: "iheat tankless"
price: "€ 802.69"
currency: EUR
in_stock: true
reviews_count: 5
category: "I Heat Tankless"
url: https://www.desertcart.sk/products/39538020-s-16-240v-66a-16kw-stainless-steel-enclosure-7-2
store_origin: SK
region: Slovakia
---

# 16KW powerful heating 3.5 GPM flow rate Stainless steel corrosion-proof S-16 240V 66A 16KW Stainless Steel Enclosure 7.2" by 11" by 3" 1/2"CPT 36' AWG#6 Electric Water Heater, 7.5 lb

**Brand:** iheat tankless
**Price:** € 802.69
**Availability:** ✅ In Stock

## Summary

> 🔥 Power up your space with endless hot water and sleek coastal durability!

## Quick Answers

- **What is this?** S-16 240V 66A 16KW Stainless Steel Enclosure 7.2" by 11" by 3" 1/2"CPT 36' AWG#6 Electric Water Heater, 7.5 lb by iheat tankless
- **How much does it cost?** € 802.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/39538020-s-16-240v-66a-16kw-stainless-steel-enclosure-7-2)

## Best For

- iheat tankless enthusiasts

## Why This Product

- Trusted iheat tankless brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Smart Design:** Compact 7.7"x11.5"x4.5" footprint fits under counters or closets, perfect for modern minimalist homes.
- • **Energy-Savvy Savings:** Slash your water heating costs by up to 60% with efficient tankless technology.
- • **Endless Hot Water Flow:** Supports simultaneous showers & sinks with 3.5 GPM capacity—never run out again.
- • **Coastal-Ready Durability:** Stainless steel enclosure resists corrosion—ideal for beachfront properties, yachts, and outdoor kitchens.
- • **User-Friendly Waterproof Controls:** Intuitive waterproof touchpad lets you safely adjust temperature with ease, even in wet environments.

## Overview

The iHeat Tankless S-16 is a 16KW electric water heater delivering up to 3.5 gallons per minute, ideal for simultaneous use in southern US homes or point-of-use in colder climates. Its compact stainless steel design resists corrosion, making it perfect for coastal and outdoor applications. With energy-efficient tankless technology, it saves up to 60% on heating costs while fitting discreetly under counters or in closets. Waterproof touch controls add convenience and safety, backed by a multi-year warranty for peace of mind.

## Description

The heat electric tank less water heater S-16 model 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 S-16 model 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 tank less 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.

Review: Understang how these water heaters work - I started looking into tankless water heaters a few years ago when I started to have problems with my tank water heater. I replaced the thermostats and all was well but I noticed a leak and knew it was a matter of time before I would have to replace it. I found this model on desertcart and it appeared to have some good reviews and a few not so good reviews. So I took the plunge and acquired the heater. There are some facts that aren't in the description as exactly how this device works. Sure, they give you charts on water temps for different areas of the country, flow rates for the heater, ect. I live in Tennessee and right now ( November ) the cold water temperature is 53 degrees. After installing the heater I set the temp on the controller to 110 degrees, turned on the hot water faucet in the bathroom, and it barely got warm. Somewhat disappointing, I reset the temp to 120 degrees on the controller and it got slightly warmer. So I got to looking at the chart again realizing that probably the water temperature of 53 degrees was too cold for the heater to operate efficiently. The was a solution to my problem, in my case we have a small home, one bath and the normal bathroom sink and a sink in the kitchen, was controlling the inlet cold water volume to the water heater. I reduced the water volume to about 2.5 gallons per minute, set the controller temp on the heater to 120 degrees F. Now the water temp out of the faucets approached 118 degrees. Mixing in cold water I can enjoy endless hot water in the shower, that is hot. Another small anomaly is turning off hot water for a small amount of time will cause the heater to stop heating and it will introduce cold water in the outlet until it heats the water again. So if you turn off the hot water in your shower, ect., you will feel the chill for a few seconds..... This is a great heater and was fairly easy to install. Installing the #6 wire was the hardest part. I recommend this heater if you have a small home. It works well and I am very pleased with it. -BoBc
Review: Works great for a family of 5 - 4 month update- still works great! Never really noticed a difference in my electric bill like some people claim, but overall I’m still pleased with this purchase. I noticed some people saying it doesn’t last longer than 6-12 months. Hopefully that won’t be the case with mine. I will do another update around the 12th month mark to let you know how it is still working. We can have someone in the shower, dishwasher running, and clothes washer running all at the same time with no issues. We have also had both our showers going at the same time and still had no issues with a lack of hot water. Water heats up REALLY hot if set to the highest temperature. The best part of a tankless water heater.... we can all take showers back to back without ever running out of hot water. Not too mention, tankless is just simply more sanitary then those nasty tanks! Hook up was simple. I went to Home Depot and they helped with everything. I used shark bite adapters which made connecting all the pipes a breeze. I was worried about getting it and not being able to install it myself, but it truly was easy. I'm very pleased with my purchase and would definitely recommend it to everyone I know.

## Features

- The heat tank less stainless Steel construction is a perfect fit for any applications near the ocean, like beach front properties, yachts, small boats, resorts and outdoor kitchens
- Heat tank less 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
- Heat tank less 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
- Heat tank less water heater saves you up to 60% on your water heating costs.Water proof construction allows you to easily and safely control the temperature by using our water proof interactive touch pad
- Dimensions: 11.5 x 9 x 4.5 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PP4RRPM |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #190,563 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #267 in Water Heaters |
| Brand | iHeat Tankless |
| Color | Steel |
| Customer Reviews | 4.0 4.0 out of 5 stars (398) |
| Date First Available | November 16, 2014 |
| Efficiency | High (Cannot determine exact value) |
| Global Trade Identification Number | 00857997005002 |
| Heat Output | 16000 Watts |
| Included Components | iHeat Electric Tankless Water Heater Model No. S-16 |
| Is Discontinued By Manufacturer | No |
| Is Electric | Yes |
| Item Depth | 4.5 inches |
| Item Package Quantity | 1 |
| Item Weight | 8 pounds |
| Item model number | -P |
| Manufacturer | iHeat Tankless |
| Maximum Temperature | 95 Degrees Fahrenheit |
| Mounting Type | Wall |
| Number of Handles | 1 |
| Part Number | S-16 |
| Pattern | Water Heater |
| Product Dimensions | 7.7"W x 11.5"H |
| Size | 16 KW |
| Style | Outdoor |
| UPC | 857997005002 |
| Voltage | 240 Volts |
| Warranty Description | 1 yr Elements limited 3-Year Components 5-yr leaks |
| Wattage | 16000 watts |

## Product Details

- **Brand:** iHeat Tankless
- **Capacity:** 3.5 Gallons
- **Color:** Steel
- **Power Source:** Corded Electric
- **Product Dimensions:** 7.7"W x 11.5"H

## Images

![S-16 240V 66A 16KW Stainless Steel Enclosure 7.2" by 11" by 3" 1/2"CPT 36' AWG#6 Electric Water Heater, 7.5 lb - Image 1](https://m.media-amazon.com/images/I/51ouaBskKJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Understang how these water heaters work
*by B***C on November 26, 2018*

I started looking into tankless water heaters a few years ago when I started to have problems with my tank water heater. I replaced the thermostats and all was well but I noticed a leak and knew it was a matter of time before I would have to replace it. I found this model on Amazon and it appeared to have some good reviews and a few not so good reviews. So I took the plunge and acquired the heater. There are some facts that aren't in the description as exactly how this device works. Sure, they give you charts on water temps for different areas of the country, flow rates for the heater, ect. I live in Tennessee and right now ( November ) the cold water temperature is 53 degrees. After installing the heater I set the temp on the controller to 110 degrees, turned on the hot water faucet in the bathroom, and it barely got warm. Somewhat disappointing, I reset the temp to 120 degrees on the controller and it got slightly warmer. So I got to looking at the chart again realizing that probably the water temperature of 53 degrees was too cold for the heater to operate efficiently. The was a solution to my problem, in my case we have a small home, one bath and the normal bathroom sink and a sink in the kitchen, was controlling the inlet cold water volume to the water heater. I reduced the water volume to about 2.5 gallons per minute, set the controller temp on the heater to 120 degrees F. Now the water temp out of the faucets approached 118 degrees. Mixing in cold water I can enjoy endless hot water in the shower, that is hot. Another small anomaly is turning off hot water for a small amount of time will cause the heater to stop heating and it will introduce cold water in the outlet until it heats the water again. So if you turn off the hot water in your shower, ect., you will feel the chill for a few seconds..... This is a great heater and was fairly easy to install. Installing the #6 wire was the hardest part. I recommend this heater if you have a small home. It works well and I am very pleased with it. -BoBc

### ⭐⭐⭐⭐⭐ Works great for a family of 5
*by S***Z on August 8, 2017*

4 month update- still works great! Never really noticed a difference in my electric bill like some people claim, but overall I’m still pleased with this purchase. I noticed some people saying it doesn’t last longer than 6-12 months. Hopefully that won’t be the case with mine. I will do another update around the 12th month mark to let you know how it is still working. We can have someone in the shower, dishwasher running, and clothes washer running all at the same time with no issues. We have also had both our showers going at the same time and still had no issues with a lack of hot water. Water heats up REALLY hot if set to the highest temperature. The best part of a tankless water heater.... we can all take showers back to back without ever running out of hot water. Not too mention, tankless is just simply more sanitary then those nasty tanks! Hook up was simple. I went to Home Depot and they helped with everything. I used shark bite adapters which made connecting all the pipes a breeze. I was worried about getting it and not being able to install it myself, but it truly was easy. I'm very pleased with my purchase and would definitely recommend it to everyone I know.

### ⭐ ONLY LASTS ABOUT 2 YEARS no matter if you change the filters or not.
*by V***R on October 22, 2025*

This product works great for about 2 years whether you change the filter or not. Then it dies. This is the third time I have bought this item and the first one lasted about 2 years and I never changed the filter that often so I thought it was my fault. So I bought another one (second one) and changed the filters regularly and it just quit after a little over 2 years. I bought a third one just now because it is easy for my friend to just take the old one out and put the new one in. But I will be switching to something else when this one dies in 2 years to something that lasts a little longer.

## Frequently Bought Together

- iHeat Tankless S-16 240V 66A 16KW Stainless Steel Enclosure 7.2" by 11" by 3" 1/2"CPT 36' AWG#8 Electric Water Heater, 7.5 lb
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- 3M Home Water Filtration 3M IAS430SS - Appliance Protection System

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-16*