20 Best Eco 18 Electric Tankless Water Heater [2022]

Are you looking for the best Eco 18 Electric Tankless Water Heater? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Eco 18 Electric Tankless Water Heater.

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1 EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating... EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating...
2 Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
3 Rheem 18kW 240V Tankless Electric Water Heater Rheem 18kW 240V Tankless Electric Water Heater
4 EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating... EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating...
5 Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water,... Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water,...
6 Marey ECO180 18kW 4.4 gpm 220V Self-Modulating Multiple Points Tankless Electric Water Heater for... Marey ECO180 18kW 4.4 gpm 220V Self-Modulating Multiple Points Tankless Electric Water Heater for...
7 BLACK+DECKER Black and Decker 18 kW 3.7 GPM Electric Tankless Water Heater, Digital Self Modulating... BLACK+DECKER Black and Decker 18 kW 3.7 GPM Electric Tankless Water Heater, Digital Self...
8 Performance 18 kW Self-Modulating 3.5 GPM Electric Tankless Water Heater Performance 18 kW Self-Modulating 3.5 GPM Electric Tankless Water Heater
9 Thermoflow 18KW at 240V Tankless Water Heater Electric, On Demand Instant Hot Water Heater with... Thermoflow 18KW at 240V Tankless Water Heater Electric, On Demand Instant Hot Water Heater with...
10 EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating... EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating...
11 Ecosmart HE 90240 ECO 27 replacement part Ecosmart HE 90240 ECO 27 replacement part
12 RINKMO Tankless Water Heater Electric 18KW 240V Instant Residential Electric on Demand Water Heater... RINKMO Tankless Water Heater Electric 18KW 240V Instant Residential Electric on Demand Water...
13 Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating... Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating...
14 Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater
15 Tankless Electric Water Heater 18KW 240 Volt, On-Demand Instant Endless Hot Water Heater Digital... Tankless Electric Water Heater 18KW 240 Volt, On-Demand Instant Endless Hot Water Heater Digital...
16 Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
17 Airthereal Electric Tankless Water Heater 18kW, 240Volts - Endless On-Demand Hot Water - Self... Airthereal Electric Tankless Water Heater 18kW, 240Volts - Endless On-Demand Hot Water - Self...
18 Electric Tankless Hot Water Heater, 18KW 240V On Demand Instant Hot Water Heater with Digital... Electric Tankless Hot Water Heater, 18KW 240V On Demand Instant Hot Water Heater with Digital...
19 EcoSmart SMART POOL 18 Electric Tankless Pool Heater, 18kW, 240 Volt, 75 Amps with Self Modulating... EcoSmart SMART POOL 18 Electric Tankless Pool Heater, 18kW, 240 Volt, 75 Amps with Self...
20 CRAFTSMAN 18kW 240-Volt 3.7 GPM Electric Tankless Water Heater, hot water heater for 1-1.5 Bathrooms CRAFTSMAN 18kW 240-Volt 3.7 GPM Electric Tankless Water Heater, hot water heater for 1-1.5 Bathrooms
SaleBestseller No. 1
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating...
  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
  • The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
SaleBestseller No. 2
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater
  • 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
Bestseller No. 3
Rheem 18kW 240V Tankless Electric Water Heater
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display
SaleBestseller No. 4
EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating...
  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Heating elements are durable and are threaded for easy replacement
  • Activation Flow - 0.3 GPM
SaleBestseller No. 5
Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water,...
  • On demand a continuous and unlimited supply of hot water
  • Sleek design saves space and no venting required
  • Requires hard-wired 240 or 208-volt electric service, with a maximum draw of 28,800 watts at 240 volts or 21,600 watts at 208 volts
  • Requires 3 separate dedicated 40 amp breakers with 8 gauge copper wiring, and a minimum of 200 amp total service to the residence
Bestseller No. 6
Marey ECO180 18kW 4.4 gpm 220V Self-Modulating Multiple Points Tankless Electric Water Heater for...
  • The 220V eco 18Kw unit requires (2) 50 amp breakers and must be installed by a professional plumber or electrician to ensure safety and quality
  • German-designed with high quality stainless steel water channel and heating chamber
  • Smart technology: easy management and simple adjustments on a LCD panel allows you to program the exact desired water temperature thereby optimizing...
  • Recommended for 2 simultaneous Showers (2. 0 gpm each) in hot climates (US Southern regions). in colder regions it is suitable to provide hot water to...
  • Tankless water heaters save energy because they use up to 60% less energy than conventional tank water heaters. As a result, they are cost effective...
Bestseller No. 7
BLACK+DECKER Black and Decker 18 kW 3.7 GPM Electric Tankless Water Heater, Digital Self Modulating...
  • On demand hotwater heater for up to 3 single use applications
  • Electric Water Heater with no hot water tank
  • WARRANTY: 7-yr leakage free, 5-yr heat exchanger, 2-yr parts
  • Save up to 50% on your water heating costs
SaleBestseller No. 8
Performance 18 kW Self-Modulating 3.5 GPM Electric Tankless Water Heater
  • This refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning,...
SaleBestseller No. 9
Thermoflow 18KW at 240V Tankless Water Heater Electric, On Demand Instant Hot Water Heater with...
  • On Demand Endless Hot Water for Whole House - instant hot water tankless water heater, constant supply of hot water whenever and however long you...
  • Energy and Cost Saving - Heating water only when it's needed with heating efficiency up to 99%, savings of up to 50% on water heating costs; minimal...
  • Self-Modulating Temperature Technology of Germany - use only neccessary energy to heat water to temperature of your needs, also ensure steady output...
  • Easy Installation and Durable - Compact and wall-mounted design with Six stainless steel heating elements, thermo cut-off protection, CSA certified,...
  • Notes — Please verify it's the right size for you: Dimensions: 18.6" x 10" x 4.5"; weight: 8.4 lbs; pipes fittings :1/2 inch NPT, nominal pressure:...
SaleBestseller No. 10
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating...
  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow...
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use;...
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that...
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and...
Bestseller No. 11
Ecosmart HE 90240 ECO 27 replacement part
  • Heating Element Compatible With Eco 18, Eco 24 & Eco 27
  • 9Kw Eco Heating Element
  • This Product Is For 240V
  • Brand Name: Ecosmart
SaleBestseller No. 12
RINKMO Tankless Water Heater Electric 18KW 240V Instant Residential Electric on Demand Water Heater...
  • 💧 INSTANT ENDLESS HOT WATER: Our RINKMO 18KW tankless water heater requires 2 x 40 AMP breakers and 2 x 8 AWG wire, the Water Flow is...
  • 💧 MONEY & TIME SAVING EXPERT: Units are designed to be highly efficient by heating water only when it's needed, no need to preheat, giving you hot...
  • 💧 10 TIMES SAFE PROTECTIONS: A Safer water heater, designed for point-of-use especially living with babies. Inner water and electricity lines...
  • 💧 INTELLIGENT & EFFICIENT UNIT: Our smart modulating technology and sensor to calculate the difference between the desired temp and current temp,...
  • 💧 POWERFUL for WHOLE HOUSE: Small and mighty, the suitcase-sized wall units fit in many spaces, freeing up more usable living area in your home....
Bestseller No. 13
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating...
  • Lifetime warranty
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design.Activation flow 0.3 GPM
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
SaleBestseller No. 14
Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater
  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • 12 A
SaleBestseller No. 15
Tankless Electric Water Heater 18KW 240 Volt, On-Demand Instant Endless Hot Water Heater Digital...
  • Efficient & Large Capacity Tankless Water Heater: Applied with 18KW heating system, the electric water heater supplies instant, consistent and 24h...
  • Compact & Energy Saving: 11"*7.5" Tankless water heater is compact like a portable suitcase, easy to install anywhere close to an outlet, circuit...
  • Convenient & Easy to Use: The tankless water heater comes with a digital display and knob control panel so the temp setting is quite an easy job. You...
  • Premium Electric Water Heater: ETL FCC test passed, this tankless water heater is crafted with an excellent stainless steel case and inner copper...
  • Safe & Durable Operation: Applied with multiple protection devices like over-heating auto-stop, no water auto-stop, power-off memory function, every...
Bestseller No. 16
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • Bottom 3/4" NPT water connections
  • On demand, consistent and continuous hot water
Bestseller No. 17
Airthereal Electric Tankless Water Heater 18kW, 240Volts - Endless On-Demand Hot Water - Self...
  • ☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the...
  • ☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a...
  • ☼ Save Energy: Water is only heated when you need it, not stored in a hot water tank. The self-modulating temperature technology only uses energy to...
  • ☼ Important Note: In order to install 18kW Electric Tankless Water Heater it would requires 240 Voltage, 2 x 40 AMP Circuit Breaker Size and a set...
  • ☼ Safe To Use: With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe,...
SaleBestseller No. 18
Electric Tankless Hot Water Heater, 18KW 240V On Demand Instant Hot Water Heater with Digital...
  • ♡【18KW INSTANT WATER HEATER】- The electric Tankless Water Heater applied with powerful 18kW heating system supplies sufficient instant and...
  • ♡【SAVING SPACE & ENERGY】- This instant hot water heater with compact size perfect and quite space-saving for kitchen, school, hospital, and a...
  • ♡【℉ & ℃ CONVERTIBLE TECH】- More considerate is, we consider the users' habit, we upgraded the water heater and equipped with degree...
  • ♡【EASY TO INSTALL & OPERATE】- The 18KW electric tankless water heater comes with digital display & touch control panel so temp setting is a easy...
  • ♡【MULTIPLE PROTECTION】- Your safety is the top priority. Multiple protection to ensure your safety. Overtemperature protection: when the outlet...
Bestseller No. 19
EcoSmart SMART POOL 18 Electric Tankless Pool Heater, 18kW, 240 Volt, 75 Amps with Self Modulating...
  • Flow Activation
  • Ecosmart Pool Heaters are compact and easy to install for a new or existing pool
  • Set your temperature digitally to increments of 1-Degree. Set it and forget it.Required Wire:2 x 8 AWG
  • Compatible with Ecosmart Remote Control
  • Can be used as an alternative to or booster to heat pump. Phase - Single
Bestseller No. 20
CRAFTSMAN 18kW 240-Volt 3.7 GPM Electric Tankless Water Heater, hot water heater for 1-1.5 Bathrooms
  • Warm to hot climates - serves up to 1-2 bathrooms | Cool to cold climates - serves up to 1 bathroom
  • Requires a 240-Volt service with two 40 Amp double-pole breakers and two 8/2 AWG wires
  • 35° F Temperature Rise – 3.7 GPM, 45° F Temperature Rise – 2.85 GPM, 55° F Temperature Rise – 2.4 GPM
  • Digital control panel allows you to easily set the desired temperature up/down in increments of 1 degree F from 90 – 122 degrees
  • Durable assembly with stainless steel, non-corrosive, lead free internal canisters and piping with standard 1/2 in. NPT (straight thread) fittings

Having trouble finding a great Eco 18 Electric Tankless Water Heater?

This problem is well understood by us because we have gone through the entire Eco 18 Electric Tankless Water Heater research process ourselves, which is why we have put together a comprehensive list of the best Eco 18 Electric Tankless Water Heaters available in the market today.

After hours of searching and using all the models on the market, we have found the best Eco 18 Electric Tankless Water Heater for 2022. See our ranking below!

How Do You Buy The Best Eco 18 Electric Tankless Water Heater?

Do you get stressed out thinking about shopping for a great Eco 18 Electric Tankless Water Heater? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Eco 18 Electric Tankless Water Heater, which is why we have assembled a comprehensive list of the greatest Eco 18 Electric Tankless Water Heater available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Eco 18 Electric Tankless Water Heater that you consider buying. Your questions might include the following:

  • Is it worth buying an Eco 18 Electric Tankless Water Heater?
  • What benefits are there with buying an Eco 18 Electric Tankless Water Heater?
  • What factors deserve consideration when shopping for an effective Eco 18 Electric Tankless Water Heater?
  • Why is it crucial to invest in any Eco 18 Electric Tankless Water Heater, much less the best one?
  • Which Eco 18 Electric Tankless Water Heater are good in the current market?
  • Where can you find information like this about Eco 18 Electric Tankless Water Heater?

We’re convinced that you likely have far more questions than just these regarding Eco 18 Electric Tankless Water Heater, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Eco 18 Electric Tankless Water Heater, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Eco 18 Electric Tankless Water Heater. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Eco 18 Electric Tankless Water Heater buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Eco 18 Electric Tankless Water Heater currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Eco 18 Electric Tankless Water Heater has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Eco 18 Electric Tankless Water Heater?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Eco 18 Electric Tankless Water Heater.
  5. Customer Ratings: Number ratings grade Eco 18 Electric Tankless Water Heater objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Eco 18 Electric Tankless Water Heater.
  7. Product Quality: You don’t always get what you pay for with an Eco 18 Electric Tankless Water Heater, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Eco 18 Electric Tankless Water Heater is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Eco 18 Electric Tankless Water Heater information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Eco 18 Electric Tankless Water Heater is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Why do you need a tankless water heater?

A: Tankless water heaters do need a larger gas line since its required Btus are higher than tank water heaters. The reason why the Btus are higher is because it needs the energy to heat the water to your set temperature in mere seconds.

Q: Do tankless water heaters really save energy?

A: A tankless water heater detects when you turn on the hot water tap and heats the water as it passes through the unit. When you turn off the tap, the tankless water heater also turns off. This helps save energy and money. Being tankless also means that these units are much smaller.

Q: Why is my tankless water heater so noisy?

A: Installing a water softener system may be necessary. Others reasons for a noisy tankless water heater model may be an issue with the burner, the fan may be dirty, or possibly a leak in the sealed combustion resulting in irregular gas combustion.

Q: Is electric tankless water heater a good option?

A: By the way, electric tankless water heaters are not efficient and would be a very poor choice. They can’t be compared in any way shape or form with a gas tankless water heater. Once the gas line is run, you can decide if you’d like to install a gas tankless water heater, or the more old fashion tank-style water heater.