Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at (239) 278-0811 or (239) 800-4601 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

4.3 | 13 Reviews

Natural Gas Condensing Tankless Water Heater

Electrolux EN18WI30LS


  • Endless Hot Water
  • Energy Efficient
  • Compact Space Savings
  • Premium Stainless Steel

Quick Specs

  • Type: Small Water Heater
  • Width: 18.5"
  • Height: 24.5"
  • Depth: 9.5"
  • Energy Star Rated: No

See More


Endless Hot Water Endless Hot Water - Hot water when you need for as long as you need it.

Energy Efficient More energy efficient than standard gas tank water heaters.

Premium Stainless Steel Durable premium stainless steel exterior.

Lifetime limited warranty Lifetime limited warranty supported by a 1 year labor, 5 year parts and 12 year heat exchanger warranty to provide peace of mind.

Lasts up to 20 years Lasts up to 2 times longer than standard gas tank water heaters.

LED Digital Display Conveniently adjust temperature to your needs with the LED digital display.


  • Endless Hot Water
  • Energy Efficient
  • Compact Space Savings
  • Premium Stainless Steel
  • Lifetime limited warranty
  • Lasts up to 20 years
  • LED Digital Display
Certifications & Approvals
CSA Certified Yes - US
ENERGY STAR ® Certified No
ETL Listed No
Low NOx Approved (SCAQMD 20 ppm) Yes
NSF ® Certified Yes
UL Listed N-No UL Code Rating
Exterior Dimensions
Depth 9-1/2"
Height 24-1/2"
Width 18-1/2"
Electrical Specifications
Power Consumption with Freeze Protection (W) 213
Power Consumption without Freeze Protection (W) 73
Power Cord Included Yes
Power Cord Location Bottom Middle
Voltage Rating 120V 60Hz
Exterior Specifications
Chassis Finish Painted Steel
Exterior Finish Stainless Steel
General Specifications
Water Inlet Location Bottom Left
Water Outlet Location Bottom Left
Shipping Weight (lbs) 71
Product Weight (lbs) 58
Reconditioned No
Indoor Wall Mounted Yes
Outdoor Wall Mounted No
Max BTU/H 180000
Min BTU/H 16000
Energy Factor 0.91
Thermal Efficiency 93%
Water Heater
Condensation Drain Connection Size 1/2" Threaded
Condensing Yes
Default Temp Settings w/Remote (F) 110F
Default Temp Settings w/o Remote (F) 120F
Exhaust Type Direct Vent (SV Convertible)
Exhaust Vent Material Schedule 40/80 PVC/CPVC
Flow Meter Alarm Yes
Hot Water Capacity at 45 Degrees Temp Rise (GPM) 7.5
Hot Water Capacity at 77 Degrees Temp Rise (GPM) 4.3
Flue Collar Material PVC
Freeze Prevention Device Yes
Gas Connection Size 3/4" Threaded
Gas Supply Pressure Range (WC) 4 - 10.5"
High Elevation Adjustment Yes
Hot Water Outlet Connection Size 3/4" Threaded
Ignition Type Direct Electronic
Intake/Exhaust Vent Diameter 3" or 4"
Maximum Flow Rate (GPM) 9.8
Minimum Flow Rate (GPM) 0.5
Primary Heat Exchanger Material Copper
Recirculation Compatible Yes
Remote Controller Yes
Secondary Heat Exchanger Material Stainless Steel
Temperature Settings with Remote (F) 100 105 110 115 120 125 130 135 140F
Temperature Settings w/o Remote (F) 120 130 140F
Water Supply Pressure Range 15 - 150 psi
Water Inlet Connection Size 3/4" Threaded
Control Panel Hard Wired Remote
Control Panel Lockout Yes
Controls Mechanical Button
Display Type LED Digital Display
Flow Rate Display Mode G / L
Temperature Display Mode F / C
Vertical Vent Termination (Optional) TWHVERTCAP - Vertical Dual Penetration
Horizontal Installation Kit TWHHORKIT - Required (Application Specific)
Condensate Neutralizer Kit (Optional) TWHNEUTRAL
Vertical Installation Kit TWHVERTKIT - Required (Application Specific)
Horizontal Vent Termination (Optional) TWHHORHOOD - Horizontal Dual Penetration
Horizontal Concentric Vent Termination (Optional) TWHHORCONC
Quick Connect Cord (Optional) TWHQCCORD - Multiple Units

Quick Specs

  • Appearance

  • Type: Small Water Heater

  • Dimensions

  • Width: 18.5"
  • Height: 24.5"
  • Depth: 9.5"

  • Features

  • Energy Star Rated: No

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.3 out of 5

84% of reviewers recommend this product.

1 Stars

Bad At Circulating Hot Water

IHateElectrolux 6/11/2019

It takes forever for it to push hot water out. There are much better tankless hot water heaters on the market. Electrolux customer service is dismal. Save yourself money and hassle--don't buy this product.
Originally posted on

No, I do not recommend this product

5 Stars

Very good water heater!

greg3426 5/13/2018

I purchased it 3 months ago and I am pleased with it so far.
Originally posted on

Yes, I recommend this product

5 Stars

Easy installation and WORKS GREAT!!

32Rodder 4/23/2018

This is my first Tankless heater experience and it is a good one!!
Originally posted on

Yes, I recommend this product

3 Stars

Good product

Handyman Roger 4/21/2018

Got this water geater and love the fact that it is affordable compared to a tank heater. Works great even though the remote control isn't working. Instructions were terrible as to how to wire the remote, so it blew when hooked up.
Originally posted on

No, I do not recommend this product

4 Stars

As advertised.

Fred6611 4/6/2018

Bought in December 2017. Works well in my application.
Originally posted on

Yes, I recommend this product

4 Stars

Great water heater.

StevieD 3/26/2018

This replaced an older tankless water heater. Wish the Electrolux was available when I bought it since this has superior features and performance.
Originally posted on

Yes, I recommend this product

5 Stars

Works great!

Dill23 3/17/2018

I bought this about a month ago and it is great! I never run out of hot water.
Originally posted on

Yes, I recommend this product

5 Stars

Best addition to the home.

Bleach1227 3/9/2018

Replaced two heaters with this one using hot water return line controlled by the unit. Always having an endless amount of hot water immediately at fixtures is what dreams are made of. Could not be happier.
Originally posted on

Yes, I recommend this product

4 Stars

appears to be of good quality.

toolman62 2/25/2018

For the price, the first impression is that the product is built with good quality material. So far, the only negative is there was no customer service when asking installation questions. I emailed but never received a reply. The unit is working well since installed two weeks ago.
Originally posted on

Yes, I recommend this product

5 Stars


Mack91 2/8/2018

Got a wicked deal online. Could not be happier with the unit. Whisper quiet. Hopefully a major savings from the old heater.
Originally posted on

Yes, I recommend this product

5 Stars

I am amazed!!

Miccaveman 2/1/2018

I could not be more pleased. Can barely hear it run. It never runs out of hot water. We went from an 80 gallon electric unit to this unit. I can't wait to see the savings on our electric bill. If you are thinking about switching to this type of water heater, don't wait any longer.
Originally posted on

Yes, I recommend this product

5 Stars

Efficient water heater

Alfredo 10/1/2017

I installed it a few week ago and at this moment work excellent. It give to me hot water faster than before tank water heater and doesn™€™t need keep hot water all time with waste of energy.
Originally posted on

Yes, I recommend this product

5 Stars

I'm impressed

jomax 9/19/2017

My last 2 conventional heaters lasted under 9 years combined, tanks rusted through. My answer was to go tankless. We have had it in service long enough to have gotten a gas/electric bill which shows a comparison to last years' usage for the same month. For our first month, during summer, natural gas consumption was almost exactly 50% lower. With the 12 year warranty, it should pay for itself.
Originally posted on

Yes, I recommend this product