---
product_id: 4015567
title: "EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5"
brand: "ecosmart"
price: "A$1189"
currency: AUD
in_stock: true
reviews_count: 7
category: "Eco Smart"
url: https://www.desertcart.com.au/products/4015567-ecosmart-eco-27-tankless-water-heater-electric-27-kw-quantity
store_origin: AU
region: Australia
---

# 27 kW high power output Up to 6.6 GPM flow rate 1° increment digital temp control EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5

**Brand:** ecosmart
**Price:** A$1189
**Availability:** ✅ In Stock

## Summary

> 🔥 EcoSmart ECO 27: Hot water, zero wait, endless savings!

## Quick Answers

- **What is this?** EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5 by ecosmart
- **How much does it cost?** A$1189 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/4015567-ecosmart-eco-27-tankless-water-heater-electric-27-kw-quantity)

## 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

- • **Cold Climate Ready:** Engineered to deliver consistent hot water even when inlet temps drop to 37°F—ideal for northern homes.
- • **Compact Space-Saver:** Slim 17x17x3.5 inch design frees up valuable closet or wall space—goodbye bulky tanks!
- • **Powerful & Efficient:** 27 kW output with 99.8% energy efficiency means hot water on demand without the waste.
- • **Precision Heat Control:** Set your perfect temperature with 1-degree digital increments for ultimate comfort and energy savings.
- • **Smart Self-Modulating Tech:** Automatically adjusts energy use based on flow, maximizing savings and performance every time.

## Overview

The EcoSmart ECO 27 is a high-efficiency electric tankless water heater delivering up to 6.6 gallons per minute with precise digital temperature control. Designed for cold climates with inlet water as low as 37°F, it features patented self-modulating technology to optimize energy use. Its compact 17x17x3.5 inch wall-mount design saves space while providing reliable hot water for demanding household needs. UL and CSA certified, it operates at 240 volts with a powerful 27 kW output and includes a limited lifetime warranty on key components.

## Description

Product Description Configured for cold climates or high flow rates. Well suited where incoming water temperature can drop below 45 F. For use in more demanding water usage applications. Self modulating flow sensor technology regulates the amount of energy required to heat the water needed. Digital temperature display showing the outlet water temperature setting. Uses (3) 9 KW standard Emerson electric heating elements with brass tops to prevent electrolysis. Copper heat exchanger. Automatic resettable thermostat. (3) 40 DP breakers required. 112A draw. Required wire: 3 sets 8 AWG. Pipe fitting: 3/4'' NPT. Energy efficiency: 99.8%. UL and CSA certified.Weight: 11 lb. It can provide between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature. From the Manufacturer This Smart Technology electric tankless water heater is configured for climates where incoming water temperature can reach as low as 37 degrees. The ECO 27 is capable of heating nearly 3 gallons per minute at this temperature. The ECO 27 is the largest electric tankless water heater available with Patented Self Modulating Technology. This model is well-suited for homes in the northern U.S., Canada, and in the southern U.S. for large Roman-style or Jacuzzi tubs that generally have more demanding water usage needs. Digital temperature control allows you to set your temperature in increments of 1 degree. Prior to purchase and installation please verify that this model is the right size for your hot water needs and electrical requirements.

Review: Has worked like a charm - plenty of water and saved a lot of money - I've had this for 10 months (updated: 2 years now) and it's worked great. I have really high powered water pressure in the showers here, and sometimes also am running a laundry washer and sink. I tried running the washer on Hot, then I turned on 1 sink and both showers to very hot and they all had plenty of hot water. It was pretty easy to set up. While their disclaimer says that you need to have a licensed electrician install it to get the warranty, over the phone 2 people there explained that it's fine for a handyman to set it up, and that they will still honor the warranty as long as the problem clearly is not due to bad installation. In other words, if the problem is due to poor installation, then obviously they won't want to send you a new one. That's more than fair and means that you can save a lot of money having your handyman do it if he has electrical experience. I spoke to some people who said that most companies will put that a licensed person is required to install it for liability purposes to protect themselves. In real life, Ecosmart will cover it even if a non-licensed person installs it. Just write their name and phone number on the warranty registration card and send it in. Also, though their site says (I think from memory) that it needs 120 amps total, we asked them if putting it on a 100 amp subpanel would be enough, and they said yes, and we did that and it's fine. I was told by a number of people that if you put it on a 100 amp subpanel and for some reason it gets more than 100 amps, all it does is switch the subpanel off. That's the point of a subpanel. It makes it so only 100 amps can reach your main panel. So even with 2 showers, a large washer and a sink going, it didn't go over 100 amps. And my showers have great water pressure, so it probably would be like 3 showers in most houses. I only have 150 amps total, and everything has worked great. I found customer service great to work with. If you have a tech question, ask them if you can speak to one of their technical people. They were happy to help me figure it out. The price for this was much lower than other places I researched, and not much more than a tank. I've saved a lot of money on my energy bills as it only heats up water when you need it. I think the savings will pay for the difference in 1 year, and after that it's extra money in my pocket every month. I believe desertcart was a little cheaper than getting it directly through them but check because that could change over time of course. Also, it doesn't take more than about 10 seconds longer to get hot water than with my tank. With a tank, the water in your pipes cools off, so 90% of the wait for hot water is the old water running out. I used to have to wait about 1 minute to get hot water in my showers. With this unit, it adds only 10 seconds to the process as it quickly cranks up and starts heating the water flowing through it. For the occasional mindless person who claims that because their one unit was a dud, that all of them are - get a brain and learn some math. If you buy 40 units and 10% of them are duds, then you can make some claims about overall performance. If you go to any tank or tankless heater that has more than 80 reviews, you'll find at least a couple of reviews by people who got duds. It doesn't mean they all suck. Be honest and just say, "Mine broke and I was unhappy," and don't try to make up that everyone is going to have a problem because you did. In this day and age, pretty much all manufactured things have some duds, even high end computers like Apple. I got a dud iphone and had to have it sent back for a new one. Does that mean you will? Chances are low. I have another property where I still have a tank, and just as many things can go wrong with a tank as with a tankless. And when they go wrong with a tank, it can wreck the floor of whatever room it's in or close to, along with whatever things (furniture, cabinets etc.) are in touch with the floor. I can't wait to replace the tank with a tankless. When the time comes, I'll research what the best buy is out there for price and performance. Ecosmart was when I did, but I'm not wed to them or any other company. I also regained half a closet as it takes up almost no space. I put it in the upper corner of a closet out of the way. You can set the water temp with the turn of a knob. I love it. I will never go back to a tank. UPDATE: I've had it for 2 years now and still super happy with it.
Review: these devices work well but here's what you need to know about costs and electrical and drawbacks - Trying to get rid of gas heated anything in the house to protect the family - I bought this - problem with it is only one thing..... for a LARGE 3 full bathroom house if you used the furthest away bathtub from the unit (downstairs garage) you could not put it on highest setting to get water out of the bathtub - you had to put it on like medium flow of water coming out to get it to super scalding hot - it could not keep up - that being said - showers were no problem - scalding hot - also cut down on my bills - no more gas bill at all plus increase in the electric bill b/c of this unit was about 1/2 of what gas was b/c only ever turns on when water flows period... it was fine to use in multiple bathrooms and kitchen at same time also FYI.... so these were all my worries thinking I was totally screwing up buying one of these devices - but it works!!! one last note::: it cost me $800 to have an electrician put in 4 of the 40AMP connectors necessary to run this device which cost in the end more than double the cost of this device - it will NOTTTT work without a 40AMP and it's very unlikely you have 4 extra 40 AMP connectors on your electric grid in house and if you do they are used by something else guaranteed ! this is something they did not mention!! even though it's on the box it's umm wow... ugly cost - also the cost to BUY the 40 AMPs switches were ummm $60ish or where they $100 ish I forget ... so over $1000 total cost on electrician plus switches! sheesh... but I'm saving about $50 per month by switching to this so in 2 yrs it's paid for anyway but still - sheesh - I will give also another word of advice - I looked thru 100 of these devices - OMG so much work - let me tell you that had I spent that amount of time searching instead of a person who installed 100s of these before (a full plumber/electrician company) I would have probably saved crazy money b/c I don't thing I would have been spending that $1000 to $1200 for an install - I think they would have handled the whole thing for like $700 ish (install for plumbing for this device PLUS upgrade of electrical PLUS 4 switches cost etc) ... OOPS... I did not find this out until RIGHT AFTER the electrician was done - my friend had called me the day of or day after I had it all electrically upgraded to tell me they had found about 3 others that do this all the time in addition to working all sorts of other construction jobs - they did say however these devices are all quite GOOD if you do not go cheap like $187 one - notice I got the 2nd to most powerful one in existence the 27 version with 4 of the 40amp connectors and so on... they said they just dont have trouble with these devices but they do require maintenance like de-scalling the calcium scales off every few yrs - I never need that though b/c I have a water enhancement unit that forbids scaling for life - hehe....

## Features

- Configured for climates where incoming water temperature can reach as low as 37 degrees.
- Capable of heating nearly 3 gpm.
- Digital temperature control allows temperature settings in 1 degree increments.
- Voltage - 240
- Single phase

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002635ODW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #53,335 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #73 in Water Heaters |
| Brand | EcoSmart |
| Color | White |
| Customer Reviews | 4.1 4.1 out of 5 stars (3,030) |
| Date First Available | February 18, 2010 |
| Efficiency | High Efficiency |
| Global Trade Identification Number | 00854920002091 |
| Heat Output | 27 Kilowatts |
| Included Components | electric tankless water heater |
| Is Discontinued By Manufacturer | No |
| Is Electric | Yes |
| Item Depth | 6.5000 |
| Item Package Quantity | 1 |
| Item Weight | 10.98 pounds |
| Item model number | ECO 27 |
| Manufacturer | Ecosmart |
| Maximum Flow Rate | 6.6 Gallons Per Minute |
| Maximum Temperature | 120 Degrees Fahrenheit |
| Mounting Type | Wall |
| Part Number | ECO27 |
| Pattern | Water Heater |
| Product Dimensions | 17"W x 17"H |
| Shape | Rectangle |
| Size | 17 x 17 x 3.5 |
| Special Feature | special_feature |
| Special Features | special_feature |
| Style | ECO 27 |
| UPC | 762148098454 854920002091 758710429610 |
| Voltage | 240 Volts |
| Warranty Description | Limited Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages. Proper and timely registration is required, or warranty is void. |
| Wattage | 27 KW |

## Product Details

- **Brand:** EcoSmart
- **Capacity:** 3 Gallons
- **Power Source:** 3 x 40 AMP Double Pole Breaker (Electric)
- **Product Dimensions:** 17"W x 17"H
- **Special Feature:** special_feature

## Images

![EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5 - Image 1](https://m.media-amazon.com/images/I/81Plpbv8P3L.jpg)

## Questions & Answers

**Q: remote**
A: This unit does not have the ability to have a remote temperature control.

**Q: What is the power consumption of this tank-less heater.**
A: The instantaneous power consumption while the hot water is running is quite high (up to 18kW or 27kW depending on which model you’re looking at on this page). However, when no hot water is being used, the power consumption is 0 (or a minuscule amount to run an LED light or something). The total power consumption over the course of several days or longer should be much lower than a tank heater but the short term power usage while the heater is making hot water will be much higher than a tank heater. It’s just that the unit sits idle most of the time while a tank heater will use power fairly frequently even when no hot water is needed as the water in the tank cools off over time and needs to be re-heater fairly constantly

**Q: Can this unit supply a 3,700 sq foot home with 3 1/2 baths?**
A: I live in the Midwest and it's been great for my 500sqft home 1 fixture at a time, WITH THE EXCEPTION of my bathtub's faucet in the winter. Once temperatures go below 30f - 40f outside, it can't keep up with that tub faucet which I imagine is pumping out 4GPM and trying to get it up to the 110f - 130f range. It's winter now and I just tried out more combinations:

bathroom lav (sink) + kitchen sink work well together at full blast -- napkin numbers put this at 1.25 + 1.5 = 2.75 GPM
bathroom lav + shower head work well together at full blast -- 3.75 GPM
kitchen sink + shower head start struggling to keep up with demands - 4 GPM (same as bathtub)

I'd say it works very well for what it advertises, and besides winter hot baths it's been amazing. I'll likely try to install a flow limiter on the bathtub to get it down to the 3GPM range and I bet that will get me hot winter baths again, albeit a little slower but I'm okay with that. If I remember in the Spring once temps go back up past 40+ degrees I'll try this again!

**Q: I have a double pole 30 amp breaker would be possible to just change the breaker as I have a two story house and wiring is in the areas between floors**
A: If you have three 40 amp breakers, are you running one wire from each breaker to the unit or two from each breaker?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Has worked like a charm - plenty of water and saved a lot of money
*by P***N on October 27, 2012*

I've had this for 10 months (updated: 2 years now) and it's worked great. I have really high powered water pressure in the showers here, and sometimes also am running a laundry washer and sink. I tried running the washer on Hot, then I turned on 1 sink and both showers to very hot and they all had plenty of hot water. It was pretty easy to set up. While their disclaimer says that you need to have a licensed electrician install it to get the warranty, over the phone 2 people there explained that it's fine for a handyman to set it up, and that they will still honor the warranty as long as the problem clearly is not due to bad installation. In other words, if the problem is due to poor installation, then obviously they won't want to send you a new one. That's more than fair and means that you can save a lot of money having your handyman do it if he has electrical experience. I spoke to some people who said that most companies will put that a licensed person is required to install it for liability purposes to protect themselves. In real life, Ecosmart will cover it even if a non-licensed person installs it. Just write their name and phone number on the warranty registration card and send it in. Also, though their site says (I think from memory) that it needs 120 amps total, we asked them if putting it on a 100 amp subpanel would be enough, and they said yes, and we did that and it's fine. I was told by a number of people that if you put it on a 100 amp subpanel and for some reason it gets more than 100 amps, all it does is switch the subpanel off. That's the point of a subpanel. It makes it so only 100 amps can reach your main panel. So even with 2 showers, a large washer and a sink going, it didn't go over 100 amps. And my showers have great water pressure, so it probably would be like 3 showers in most houses. I only have 150 amps total, and everything has worked great. I found customer service great to work with. If you have a tech question, ask them if you can speak to one of their technical people. They were happy to help me figure it out. The price for this was much lower than other places I researched, and not much more than a tank. I've saved a lot of money on my energy bills as it only heats up water when you need it. I think the savings will pay for the difference in 1 year, and after that it's extra money in my pocket every month. I believe Amazon was a little cheaper than getting it directly through them but check because that could change over time of course. Also, it doesn't take more than about 10 seconds longer to get hot water than with my tank. With a tank, the water in your pipes cools off, so 90% of the wait for hot water is the old water running out. I used to have to wait about 1 minute to get hot water in my showers. With this unit, it adds only 10 seconds to the process as it quickly cranks up and starts heating the water flowing through it. For the occasional mindless person who claims that because their one unit was a dud, that all of them are - get a brain and learn some math. If you buy 40 units and 10% of them are duds, then you can make some claims about overall performance. If you go to any tank or tankless heater that has more than 80 reviews, you'll find at least a couple of reviews by people who got duds. It doesn't mean they all suck. Be honest and just say, "Mine broke and I was unhappy," and don't try to make up that everyone is going to have a problem because you did. In this day and age, pretty much all manufactured things have some duds, even high end computers like Apple. I got a dud iphone and had to have it sent back for a new one. Does that mean you will? Chances are low. I have another property where I still have a tank, and just as many things can go wrong with a tank as with a tankless. And when they go wrong with a tank, it can wreck the floor of whatever room it's in or close to, along with whatever things (furniture, cabinets etc.) are in touch with the floor. I can't wait to replace the tank with a tankless. When the time comes, I'll research what the best buy is out there for price and performance. Ecosmart was when I did, but I'm not wed to them or any other company. I also regained half a closet as it takes up almost no space. I put it in the upper corner of a closet out of the way. You can set the water temp with the turn of a knob. I love it. I will never go back to a tank. UPDATE: I've had it for 2 years now and still super happy with it.

### ⭐⭐⭐⭐⭐ these devices work well but here's what you need to know about costs and electrical and drawbacks
*by R***R on October 17, 2020*

Trying to get rid of gas heated anything in the house to protect the family - I bought this - problem with it is only one thing..... for a LARGE 3 full bathroom house if you used the furthest away bathtub from the unit (downstairs garage) you could not put it on highest setting to get water out of the bathtub - you had to put it on like medium flow of water coming out to get it to super scalding hot - it could not keep up - that being said - showers were no problem - scalding hot - also cut down on my bills - no more gas bill at all plus increase in the electric bill b/c of this unit was about 1/2 of what gas was b/c only ever turns on when water flows period... it was fine to use in multiple bathrooms and kitchen at same time also FYI.... so these were all my worries thinking I was totally screwing up buying one of these devices - but it works!!! one last note::: it cost me $800 to have an electrician put in 4 of the 40AMP connectors necessary to run this device which cost in the end more than double the cost of this device - it will NOTTTT work without a 40AMP and it's very unlikely you have 4 extra 40 AMP connectors on your electric grid in house and if you do they are used by something else guaranteed ! this is something they did not mention!! even though it's on the box it's umm wow... ugly cost - also the cost to BUY the 40 AMPs switches were ummm $60ish or where they $100 ish I forget ... so over $1000 total cost on electrician plus switches! sheesh... but I'm saving about $50 per month by switching to this so in 2 yrs it's paid for anyway but still - sheesh - I will give also another word of advice - I looked thru 100 of these devices - OMG so much work - let me tell you that had I spent that amount of time searching instead of a person who installed 100s of these before (a full plumber/electrician company) I would have probably saved crazy money b/c I don't thing I would have been spending that $1000 to $1200 for an install - I think they would have handled the whole thing for like $700 ish (install for plumbing for this device PLUS upgrade of electrical PLUS 4 switches cost etc) ... OOPS... I did not find this out until RIGHT AFTER the electrician was done - my friend had called me the day of or day after I had it all electrically upgraded to tell me they had found about 3 others that do this all the time in addition to working all sorts of other construction jobs - they did say however these devices are all quite GOOD if you do not go cheap like $187 one - notice I got the 2nd to most powerful one in existence the 27 version with 4 of the 40amp connectors and so on... they said they just dont have trouble with these devices but they do require maintenance like de-scalling the calcium scales off every few yrs - I never need that though b/c I have a water enhancement unit that forbids scaling for life - hehe....

### ⭐⭐⭐⭐⭐ Review
*by S***A on March 3, 2020*

I bought the Ecosmart Eco 27 a month ago to replace a Hubbell 280-3 tankless heater that LITERALLY blew up catastrophically. (You can read more about this below if you are interested). I have to say that this unit is head and shoulders above the Hubbell products in a number of ways and if you are in the market for a tankless heater I'd strongly recommend staying away from Hubbell after my experience. Overall, this unit does a great job in coastal British Columbia where inlet water temperatures in winter are 50 degrees F or below. Unlike the Hubbell unit, it doesn't struggle to put out 140 degree water with a faucet fully open. The Hubbell never achieved this kind of performance even in the summer months even though it was exactly the same power. Of course, if you open multiple faucets or showers you are likely to see a drop in the temp but most people do not require 140 degree water and should have little problem. The controls on the unit are easy to use but you may need to go to the Ecosmart website to find full instructions as the Owner and Maintenance (O&M) Manual they provide doesn't describe things like trouble shooting and the various Error messages you can get. But they are on the website. The Eco 27 digital display only lights up when there is a demand for water, and the temperature display can be switched quickly from F to C just by pressing the main rotary temp control knob. Pressing and holding the knob brings up further information including inlet and outlet temp and flow rate. All very easy to access. (Not nearly as easy on the Hubbell) I installed this unit myself and as you can see in the photo had to install an additional electrical sub-panel in order to comply with the need for three separate 40 Amp breakers because my main panel didn't have enough space to add extra breakers. Not that difficult if you know what you're doing but it did add about $150 to the cost for the sub-panel, breakers, and cabling. Conveniently, the spacing of the inlet and outlet connections is exactly the same as the Hubbell unit so I only had to do minimal plumbing work. Additionally, the mounting holes are at 16" centres so it can be mounted to standard wall studs. Lastly but certainly not the final or least great feature of the Eco 27 heater was the price which is about 1/3rd that of the Hubbell 280-3 it replaced. As I mentioned previously, the Hubbell blew up and the price I was quoted to replace JUST the heating chamber on it's own was DOUBLE the total price of the Eco 27!! So, overall, I've been very impressed by this unit. For those interested, my Hubbell 280-3 caused me a number of problems over the years including the fact the the original flow meter was made of a hard plastic compound and when I disassembled the unit in order to replace burned-out heating elements, the threads crumbled and rendered the unit unusable due to leakage. I finally replaced the flow meter with a newer brass-bodied unit (that on it's own costs about 1/4 of the total price of the Eco 27) but when I turned the unit back on one of the heating elements burned a hole the size of a pea through the side of the heating chamber in what was, literally, a catastrophic explosion. Very fortunately, I was standing right by the heater when this happened and was able to shut off the power and the water otherwise significant damage from flooding or fire could have resulted. What makes this failure most alarming is that, when I contacted Hubbell about it they admitted that they KNEW this could happen but fail to mention it in the O&M manual! I was using the unit 100% in accordance with the manual and yet it still blew up. To make matters worse, once this issue came to light Hubbell completely stopped communicating with me, taking absolutely no responsibility for the fact that their unit can fail catastrophically in normal use. Buyer Beware!!

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-25*