Top 10 Rated condensing tankless water heater in 2023 Comparison Table
SaleBestseller No. 1
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
- 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
SaleBestseller No. 2
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology
- 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. 3
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
SaleBestseller No. 4
Rinnai RL94IN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor Installation
- Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE180iN model
- Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9.8 GPM (6 fixtures at once)
- Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
- Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
SaleBestseller No. 5
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch
- Can provide hot water for one sink at 0.5 GPM in warmer climates
- Requires 1 x 30 amp breaker and 10 AWG wire
- For one sink at 0.5 GPM in colder climates the POU 6 is recommended
- Amperage Draw 29 amp. kW - 3.5 kW
- Connection Fittings 1/2" NPT
SaleBestseller No. 6
Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation
- Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE160iN model
- Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once)
- Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
- Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
SaleBestseller No. 7
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
- 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. 8
Ecosmart POU 6 Point of Use Electric Tankless Water Heater, 6 KW,White,1/20, 1/40, 1/95
- Can provide hot water for one sink at 0.5 GPM in warmer climates
- Requires 1 x 30 amp breaker and 10 AWG wire
- For one sink at 0.5 GPM in colder climates the POU 6 is recommended
- This product is recommended for use with a single sink only. Do not use with a shower or multiple fixtures.
- This unit operates at 220 volts and one should not use a plug while installing. This product is hard wired
Bestseller No. 9
Marey ECO110 220V Self-Modulating 11 kW, Small, White
- The 220V ECO 11kW unit is ideal for 1 simultaneous points of use in US Southern Regions where the incoming water temperature is above 70°F. In colder regions, it is suitable for a sink at 1. 3 GPM.
- 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 electricity consumption.
- Requires (1) 60 Amp breaker and must be installed by a professional plumber or electrician to ensure safety and quality.
- Marey’s ECO line can maintain 98% efficiency level throughout their lifetime.
Bestseller No. 10
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute, 199,000 BTU
- Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
- Computerized safety features, No pilot light to have to worry about
- Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
- Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
- Primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steel, Integrated controls and power cord as standard features
Our Best Choice: AO Smith ATI-510U-N AO Smith ATI-510U-N 10 GPM Residential/Commercial Ultra Low-NOx Non-Condensing Natural Gas Indoor Tankless Water Heater with 199000 Maximum BTU Input
Our rating: (4.4 / 5)
(4.4 / 5)[ad_1] Features: Hardly ever operate out of warm drinking water once again with a constant 10 GPM movement price Conveniently mounts to your wall for a very low profile installation Options a developed-in temperature controller and manufacturing unit set up power twine 4″ group III energy venting needed with a utmost size of 50' Electronic ignition ensures you never have to mess with a pilot light-weight once more Complies with guide-free of charge standards and SCAQMD policies for NOx emissions Secured by a multitude of created-in security characteristics this sort of as freeze security, an overheat cutoff fuse, constant temperature monitoring, air gasoline ratio rod, and flame sensor Involves a 15-yr limited guarantee on the warmth exchanger (6-year in industrial purposes) and a 5-calendar year guarantee on all pieces Very easily link up to 4 units with no needing further sections or accessories, and up to 20 units with the TM-MC01 (sold separately) Strong warmth exchanger is made of business-grade copper resulting in enormously elevated heat transfer and resistance to erosion Made for indoor use only Requirements: Peak: 20-1/2″ Width: 13-3/4″ Depth: 10″ Max BTU Input: 199000 Most Movement Amount: 10 GPM Gas Variety: All-natural Fuel Vitality Issue: .82 Altitude Certification: 10100 Toes Over Sea LevelProduct Variants: ATI-110U-N: 6.6 GPM Indoor Tankless H2o Heater ATI-310U-N: 8 GPM Indoor Tankless Water Heater ATI-510U-N (This Model): 10 GPM Indoor Tankless Water Heater