---
product_id: 14513132
title: "ECO 36"
brand: "ecosmart"
price: "A$1364"
currency: AUD
in_stock: null
reviews_count: 9
url: https://www.desertcart.com.au/products/14513132-eco-36
store_origin: AU
region: Australia
---

# 36 KW power output 99.8% energy efficient Digital temp control ±1°F ECO 36

**Brand:** ecosmart
**Price:** A$1364
**Availability:** ❌ Out of Stock

## Summary

> ♨️ Power your home with endless, eco-smart hot water—because waiting is so last decade.

## Quick Answers

- **What is this?** ECO 36 by ecosmart
- **How much does it cost?** A$1364 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/14513132-eco-36)

## Best For

- ecosmart enthusiasts

## Why This Product

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

## Key Features

- • **Built for Power Users:** Requires 150 Amps and 4 x 40A breakers—ideal for large families craving nonstop hot water.
- • **Space-Savvy Sleekness:** Compact wall-mounted design fits seamlessly into modern homes without bulky tanks.
- • **Endless Hot Water Flow:** Handles up to 6 GPM—run multiple showers & sinks simultaneously without a hiccup.
- • **Eco-Friendly Efficiency:** 99.8% energy efficient design slashes utility bills and carbon footprint.
- • **Precision Temperature Control:** Set your perfect temp in 1-degree increments for ultimate comfort and energy savings.

## Overview

The EcoSmart ECO 36 is a top-tier electric tankless water heater delivering 36 KW of power at 240 volts with patented self-modulating technology. It heats up to 6 gallons per minute, perfect for large households or high-demand applications, while boasting an impressive 99.8% energy efficiency. Featuring a sleek, compact design with precise digital temperature control, it requires a dedicated 150 Amp electrical service and is proudly manufactured in the USA. This unit ensures continuous hot water on demand, eliminating the wait and waste of traditional tanks.

## Description

Product Description Eco Smart ECO 36 Electric Tankless Water Heater, 36 KW at 240 Volts with Patented Self Modulating Technology Why Eco Smart? If you have a need for a high amount of hot water then the ECO 36 is the right choice. The ECO 36 is the largest electric tankless water heater available with our patented self-modulating technology. This smart technology tankless water heater is ideal for the northern United States, where incoming water temperatures can reach as low as 37 degrees F. The ECO 36 is capable of heating nearly 3.5 gallons per minute at this low temperature. To put that into perspective, it can handle up to two showers running at the same time and never run out of hot water. For homes in the southern United States, the ECO 36 is perfect for large Roman-style and Jacuzzi tubs or high demand of hot water between multiple applications. It can handle up to 6 gallons per minute, which means you can run four showers and a sink simultaneously and never run out of hot water. A digital temperature control allows you to set your temperature in increments of 1 degree, so you can set the temperature to how you like it. The ECO 36 is the most powerful model from our full line of tankless water heaters, with the capacity to handle a large single-family home.Take a look at our full line of tankless water heaters below to see what's perfect for you. THIS MODEL REQUIRES 150 AMPS DEDICATED!. Required Wire: 4 x 8 AWG From the Manufacturer Ecosmart ECO 36 Electric Tankless Water Heater, 36 KW at 240 Volts with Patented Self Modulating Technology Why EcoSmart? If you have a need for a high amount of hot water then the ECO 36 is the right choice. The ECO 36 is the largest electric tankless water heater available with our patented self modulating technology. This smart technology tankless water heater is ideal for the northern United States, where incoming water temperatures can reach as low as 37 degrees F. The ECO 36 is capable of heating nearly 3.5 gallons per minute at this low temperature. To put that into perspective, it can handle up to two showers running at the same time and never run out of hot water. For homes in the southern United States, the ECO 36 is perfect for large Roman-style and Jacuzzi tubs or high demand of hot water between multiple applications. It can handle up to 6 gallons per minute, which means you can run four showers and a sink simultaneously and never run out of hot water. A digital temperature control allows you to set your temperature in increments of 1 degree, so you can set the temperature to how you like it. The ECO 36 is the most powerful model from our full line of tankless water heaters, with the capacity to handle a large single-family home. Take a look at our full line of tankless water heaters below to see whats perfect for you. THIS MODEL REQUIRES 150 AMPS DEDICATED!

Review: Don't expect it to function like a traditional tank. - After extensive research we chose this unit and the largest they offer because of our house hold size and usage. So far so good it has been running three years strong now and we still love it. We have a family of 5 and and I don't have much in the way of complaints. It still has its limitations... You can't run the dishwasher, the shower, the sink, etc all at once much like a traditional tank. However, once the teenager is done with his 6 hour shower am not waiting to a traditional tank to fill and heat back up. My tub is about a bagillion gallons and it stays hot the whole time while filling. After 3 years it seems the savings is negligible on the electric cost but the over all benefit of never ending hot water is worth it. We did the install ourselves but truly.. not for the faint of heart. My husband and I have loads of experience in stuff like this. The 36KW requires 4- 40amp breakers. That's 4 breakers with double switches so you need to make sure that you have at least 8 open slots in your breaker box otherwise you'll have to upgrade. Also, keep in mind you need to upgrade all your faucets to Low Flow if you haven't already. Make sure you hook the cold in and hot out up correctly, it's labeled on the bottom of the box. Check, then check again and a third time otherwise you wont get any hot water if it's backwards. (Might have done this and took a little troubleshooting to figure out what was wrong. Thought it was the unit at first) When the unit cuts on it's silent. I totally expected something... I don't know what but, I was surprised it was silent. Also, it makes the lights flicker ever so slightly. Rightly so too, it is sucking a ton of power when it's on. Note that I have 200 amp service and it only makes my NON LED lights flicker. We only have a few regular bulbs left, we've just been replacing them as they burn out. I read other reviews that showed that you need to set it higher then a normal tank. It's true.I like my showers at about 110 degrees (which is way hotter then most people) and I had to crank the unit all the way to the max 140 degrees to get about 112 at the furthest shower. My old tank was set at like 135. But, keep in mind we also have copper pipe and the shower is about 50-60 feet away from the unit so we loose a good bit from the unit to the tap. I expect once we upgrade the pipes and insulate it'll help.- turns out it's true. The PVC pipes loose less heat. Our sinks that are still hooked to copper take longer to heat. Overall after you work out the kinks to get it functioning the way you like it, it is AMAZING to have hot water after my teenage son showers. He is in there forever and he would always run the old tank dry which meant the rest of us had to wait. Seriously, with 5 of us all fighting for evening showers/baths and a million loads of laundry and dishes and everything else you really can't go wrong with endless hot water. No more waiting for the old tank to heat up!
Review: Really great product!!! - Ok so this needs a review. I live in Ohio where it gets cold. I have had this for while now and it has worked flawlessly. It runs one shower with zero problems. I do not see it running two at the same time in the winter, but very possible in the summer and warmer weather. Before I bought this I called the warranty department to just test how they would respond. They were great to me. Then I told them what I was doing and the lady said “I don’t blame you” and wasn’t upset with me. We run our water at 135 degrees Fahrenheit. The install was super easy, and it looks very good. It never has a smell when it’s working, and we never any issues with it. We also have a 27kw and it works flawlessly also. This is only because my house is split plumbing. Love the product and highly recommend it.

## Features

- Sleek and compact design with digital output temperature display
- ECOSMART tankless water heaters are 99.8-percent energy efficient
- Manufactured in United States
- Pipe Fittings:3/4 inch NPT
- Required Breaker:4 x 40 A
- 150 A

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00M05IUE6 |
| Amperage Capacity | 150 Amps |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #208,621 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #283 in Water Heaters |
| Brand | EcoSmart |
| Color | White |
| Customer Reviews | 3.9 3.9 out of 5 stars (718) |
| Date First Available | July 21, 2014 |
| Efficiency | 99.8% |
| Global Trade Identification Number | 00854920002350 |
| Heat Output | 36 Kilowatts |
| Included Components | Rough Plumbing, Water Heaters, water-heaters |
| Is Discontinued By Manufacturer | No |
| Is Electric | Yes |
| Item Package Quantity | 1 |
| Item Weight | 18.35 pounds |
| Item model number | ECO 36 |
| Manufacturer | Ecosmart |
| Maximum Flow Rate | 6 Gallons Per Minute |
| Mounting Type | Wall |
| Part Number | ECO 36 |
| Pattern | Heater |
| Product Dimensions | 21"W x 17"H |
| Style | ECO 36 |
| UPC | 785577595127 854920002350 |
| Usage | Residential |
| Voltage | 240 Volts |
| Warranty Description | Limited Lifetime Warranty |
| Wattage | 36000 watts |

## Product Details

- **Brand:** EcoSmart
- **Capacity:** 6 Gallons
- **Color:** White
- **Power Source:** Corded Electric
- **Product Dimensions:** 21"W x 17"H

## Images

![ECO 36 - Image 1](https://m.media-amazon.com/images/I/31PuFW2po1L.jpg)
![ECO 36 - Image 2](https://m.media-amazon.com/images/I/41J7jUl5eEL.jpg)
![ECO 36 - Image 3](https://m.media-amazon.com/images/I/41f1beWAZsL.jpg)
![ECO 36 - Image 4](https://m.media-amazon.com/images/I/510JcdvOs7S.jpg)
![ECO 36 - Image 5](https://m.media-amazon.com/images/I/512ox45rXlL.jpg)

## Questions & Answers

**Q: Even with 200 amp. My lights flicker with the water is in use. Any one having the same issue and how was the issue resolved? Thanks**
A: After having an electrician inspect the installation and unit, I was told the Eco 36 really should only be installed on a 300 amp service or above. It is a great unit, but for most homes trying to run it on a 200 amp service, it is too much of a draw on the electrical. It will cause flickering lights and will become a problem when your timing a full house with showers, laundry, dishwashing, etc. I love the unit, but my service is 200 amp, so I'll be removing this and installing a Rheem Electric Hybrid tank water heater.

**Q: What model is recommended for whole house**
A: Hello.  I'm sure any one would work, but I'd go with this larger capacity model.   After having in for awhile, this one can output enough for 2 showers at full capacity, but one seems to be just a little restricted.  If we installed some different shower heads I'm sure there wouldn't be any issues.   For the minimal increase in cost, I believe the additional capacity is worth it.  You may not always need it, but it's nice to know it's there if you do.

**Q: Do you need to unstall a filter before the unit? If yes, what model and how often filter need to be changed? Or/and a water softener?**
A: Hello. A filter is recommended when your water is turbid or has a high sediment content. We have a filter on our Amazon store. A water softener is recommended when you have hard (high mineral content) water.GadgetsGo is one of the first Authorized Ecosmart Dealers, since 2009.Kind Regards,Ross KGadgetsGo

**Q: what size of tankless water heater do i need to provide the hot water for a insignia shower cabin which requires 2.5 to 3.5 bar of water pressure**
A: Sorry I ordered this for someone at work and I am not the end user.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Don't expect it to function like a traditional tank.
*by B***C on January 8, 2017*

After extensive research we chose this unit and the largest they offer because of our house hold size and usage. So far so good it has been running three years strong now and we still love it. We have a family of 5 and and I don't have much in the way of complaints. It still has its limitations... You can't run the dishwasher, the shower, the sink, etc all at once much like a traditional tank. However, once the teenager is done with his 6 hour shower am not waiting to a traditional tank to fill and heat back up. My tub is about a bagillion gallons and it stays hot the whole time while filling. After 3 years it seems the savings is negligible on the electric cost but the over all benefit of never ending hot water is worth it. We did the install ourselves but truly.. not for the faint of heart. My husband and I have loads of experience in stuff like this. The 36KW requires 4- 40amp breakers. That's 4 breakers with double switches so you need to make sure that you have at least 8 open slots in your breaker box otherwise you'll have to upgrade. Also, keep in mind you need to upgrade all your faucets to Low Flow if you haven't already. Make sure you hook the cold in and hot out up correctly, it's labeled on the bottom of the box. Check, then check again and a third time otherwise you wont get any hot water if it's backwards. (Might have done this and took a little troubleshooting to figure out what was wrong. Thought it was the unit at first) When the unit cuts on it's silent. I totally expected something... I don't know what but, I was surprised it was silent. Also, it makes the lights flicker ever so slightly. Rightly so too, it is sucking a ton of power when it's on. Note that I have 200 amp service and it only makes my NON LED lights flicker. We only have a few regular bulbs left, we've just been replacing them as they burn out. I read other reviews that showed that you need to set it higher then a normal tank. It's true.I like my showers at about 110 degrees (which is way hotter then most people) and I had to crank the unit all the way to the max 140 degrees to get about 112 at the furthest shower. My old tank was set at like 135. But, keep in mind we also have copper pipe and the shower is about 50-60 feet away from the unit so we loose a good bit from the unit to the tap. I expect once we upgrade the pipes and insulate it'll help.- turns out it's true. The PVC pipes loose less heat. Our sinks that are still hooked to copper take longer to heat. Overall after you work out the kinks to get it functioning the way you like it, it is AMAZING to have hot water after my teenage son showers. He is in there forever and he would always run the old tank dry which meant the rest of us had to wait. Seriously, with 5 of us all fighting for evening showers/baths and a million loads of laundry and dishes and everything else you really can't go wrong with endless hot water. No more waiting for the old tank to heat up!

### ⭐⭐⭐⭐⭐ Really great product!!!
*by A***S on January 12, 2021*

Ok so this needs a review. I live in Ohio where it gets cold. I have had this for while now and it has worked flawlessly. It runs one shower with zero problems. I do not see it running two at the same time in the winter, but very possible in the summer and warmer weather. Before I bought this I called the warranty department to just test how they would respond. They were great to me. Then I told them what I was doing and the lady said “I don’t blame you” and wasn’t upset with me. We run our water at 135 degrees Fahrenheit. The install was super easy, and it looks very good. It never has a smell when it’s working, and we never any issues with it. We also have a 27kw and it works flawlessly also. This is only because my house is split plumbing. Love the product and highly recommend it.

### ⭐ Make sure to register it within 30 days
*by B***R on December 19, 2023*

I bought the unit in May 2023 for an addition I was planning to build onto my house. I didn't open the box or read the manual to learn that there is no warranty unless you register the product within 30 days of purchase until it was too late. As soon as the unit was powered up it had problems with the motherboard. It would not turn on when the water started flowing. I had two master electricians and a master plumber troubleshoot the unit before calling customer service. Both electricians told me the power was good. They could get the unit to turn on by applying pressure to certain places on the control board or wires but it would become unresponsive after. Eventually it quit turning on completely. I reported the problem to customer service and they sent a replacement motherboard free of charge even though I had not registered the warranty. With the new motherboard installed the unit works but will only power on 2 of the 4 heating elements. If the water flow exceeds 1.3gpm the unit returns an error code E5, which usually means the water flow is too high for the unit, but the unit should operate with as much as 6gpm at my incoming water temp of 67°F. I contacted customer support again and they cannot help me. They suggested purchasing a new flow sensor, which doesn't make sense because it is displaying the correct flow amount on the unit; the unit just thinks that 1.4+gpm is too much and will not kick on the other heating elements. All heating elements, thermistors, and the fuse have been checked by a master electrician according to the company's troubleshooting guide. They will not replace the unit because I didn't register the warranty in time. So the unit powers one shower but no more, and there doesn't seem to be a way to fix it. Lesson learned. Make sure to register any appliance purchase within 30 days and be prepared for the spam emails to surge a bit after they sell your information to data farms.

## Frequently Bought Together

- Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater, White
- HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass
- 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS, Prevents Scale Build Up On Hot Water Heaters and Boilers

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-24*