The Best ecosmart eco 27 of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best ecosmart eco 27 of 2025. Check our ranking below.
2,469 Reviews Scanned
Rank No. #1
EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5
- 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
Rank No. #2
EcoSmart ECOS 27 Tankless Electric Water Heater, 27 kW at 240 Volts, 112.5 Amps with Self Modulating Technology
- Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
- Save Energy; EcoSmart tankless electric water heaters are 96% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
- Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 19 x 4.25 x 9.25 inches
- EcoSmart ECOS 27 Sizing; 27-kilowatt tankless electric water heaters are ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 2.7 and 6.6 gallons-per-minute depending on the inlet water temperature
- Warranty, five (5) years limited on leaks, one (1) year parts
Rank No. #3
Ecosmart HE 90240 ECO 27 replacement part, 1 Count (Pack of 1)
- Heating Element Compatible With Eco 18, Eco 27 & Eco 36
- 9Kw Eco Heating Element
- This Product Is For 240V
- Brand Name: Ecosmart
Rank No. #4
CAMPLUX Electric Tankless Water Heater 27kW 240V, Instant Hot Water, Self-modulating Technology, Multipoint of Use Water Heater with Digital Display, for Whole House Shower, White
- 24H Endless Hot Water- Tankless electric water heater unlike a traditional water heater, you don't have to wait more than 3 seconds to get plenty of hot water for your shower. On-demand design, 27kW faster hot water instantly for a shower whenever
- Save Energy and Money- High quality and durable heating elements separated from the water pipe greatly diminishes the buildup of scale, corrosion and minerals on the element, keeping you away from the risk of installing a water softening system. This on demand water heater saves 60% on maintenance costs for you
- Easy Installation and Save Time- Super simple settings, endless hot water heater will be installed in under 3 hours, less time than traditional large gallon tanks. The digital display shows the current water temperature and has a small red light to indicate heating. Self-modulating technology provides greater convenience in regulating hot water, making it up to 99.8% efficient in heating hot water
- Safety Protection- The electric hot water heater has a good temperature system to provide stable water temperature output with overheating protection, anti-dry heating protection, and water-electricity separation. Protect the safety of you and your family by following the ETL certified standards
- Important Tips- Ensure the minimum water flow for activation just need 0.66 GPM; Output water temperature is between 80℉&140℉; Wire gauge 3 x 8AWG; Unit size 17.12" x 13.12" x 3.12"; Water connection 3/4" NPT, recommend need a CAMPLUX water heater valve Kit VK75.
Rank No. #5
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
- Sleek and compact design with digital output temperature display
- ECOSMART tankless water heaters are 99.8-percent energy efficient
- Manufactured in United States
- 100 A
Rank No. #6
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.Amperage Draw : 54 A.Special Features: Energy Efficient
- Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
- Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
- EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
Rank No. #7
Aulpq Tankless Water Heater Flow Sensor With PTFE Tape, for Ecosmart ECO 18, ECO 24, ECO 27, and ECO 36, Hot Water Heater Replacement Parts
- 【Compatible】Designed as a direct replacement, this sensor is fully compatible with Ecosmart ECO 18, ECO 24, ECO 27, and ECO 36. It also fits other brands like the for Rheem Retex-27.
- 【Application】This flow sensor accurately monitors water flow in real-time to instantly activate your tankless water heater. It ensures a consistent hot water supply by allowing the unit to adjust heating power precisely based on actual demand, promoting energy efficiency.
- 【Water Leakage Prevention Measures】We have noticed that some customers experience water leakage after replacing the sensor. This may not be caused by the sensor itself, but rather by a small gap at the connection between the water pipe and the sensor. To prevent this, we include seal tape to ensure a tight fit!
- 【Excellent Quality】Constructed with high-strength, corrosion-resistant materials and high-quality copper components. The 24AWG/300V (≤80°C) copper wire ensures excellent thermal conductivity and reliable performance even under high operating temperatures, guaranteeing long-term durability.
- 【Easy to Install】The water flow sensor can be installed without special tools and the wiring is a quick-connect plug. Its connector has been precision-engineered to perfectly match the ports on your tankless water heater.
Rank No. #8
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater, White
- 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
Rank No. #9
Tankless Water Heater, ECOTOUCH 27kW 240V Water Heater Electric Hot Water Heaters, Instant Hot Water with Self-Modulating, Up to 6.5GPM for 2-4 Point of Use, ETL Certified, ECO270S White
- 【IMPORTANT REQUIREMENTS】Please verify it's the right size prior to purchasing: 27kW tankless water heater electric, works off 240V power only (not 120V), and this electric tankless water heater 240V draws high amperage up to 113A, so it must be installed with a Home Circuit Breaker Panel of 200A; it also requires 3 pieces of 40A double pole breaker and 3 sets of 8AWG/2 wires with Grounding. Comes with water pipe fittings: 3/4" NPT and dimensions: 12 1/5" (W) x 17 1/4" (H) x 4" (D). Go for further advice of your electrician if necessary.
- 【INSTANT ENDLESS HOT WATER】Equipped with 27kW heating system, this water heater electric delivers sufficient & endless hot water of 120℉ or higher in seconds without waiting for preheating, nor temperature fluctuation during use due to a smart chip control that monitors 20,000 times per sec, and never runs out of hot water during long shower. With a flow rate of up to 6.5 gallon per minute, this tankless electric water heater ECO270S handles 2 showers simultaneously or 4 small sink fixtures of small homes or apartments.
- 【SAFE and DURABLE】This tankless hot water heater electric is equipped with multiple protections, including leakage protection, over-temp protection, high voltage protection and dry-heating protection. Certified by ETL and qualified by UL, every piece of electric water heater ECO270S goes through strict tests before sending out and ensures 100% safety. Inner water and electricity lines are specially designed to run separately so as to avoid leakage risk and scale build up, so minimal maintenance is needed. You can count on its outstanding performance for years to come.
- 【ENERGY SAVING】Featured with advanced self-modulation system, this electric water heater tankless automatically adjusts exact power input based on temp setting and water flow rate real time, for example, less power will be input by the hot water heater electric when you reduce water flow, thus, you will get stable and comfortable experience without risk of scalding, ensuring top balance between comfort and energy efficiency, its optimal energy efficiency of 99.8% slashing 60% on electric bill compared to a typical huge tank water heater.
- 【CONVENIENT to USE】The on demand water heater electric is equipped with a user-friendly touch control panel, making temperature setting and control such an easy job. Best of all, the screen shows you all useful information so that you get clear understanding of working status of the 240V tankless water heater any time. Just set your desired temp and let the smart instant hot water heater handle the rest effortlessly.
Rank No. #10
Ecosmart ECO MINI 4 4-Gallon 120V Electric Mini Tank Water Heater,White
- Plugs into 120V outlet
- Pressure Relief Valve Included
- For Buffer and Point of Use applications
- Easy installation - appliance line cord included
Last update on 2026-04-19 / Affiliate links / Images from Amazon Product Advertising API
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