Navien is a relatively young company that develops and manufactures tankless water heaters, established in California in 2006. Navien has managed to quickly gain popularity thanks to their sophisticated engineering and the high-quality of their products. Currently, there are seven models offered by Navien, with their thermal output ranging from 120000 to 200000 BTU/H. All of them work with gas, can be installed in a series arrangement, and feature high-grade materials that are suitable for use in both residential and commercial environments.
Rinnai V65eN Natural Gas Tankless Hot Water Heater, 6.5 GPM
$714.61Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe
$1,604.00INDOOR installation only. Fuel Type: NATURAL GAS. Concentric or PVC venting option Up to 0.96 Energy Factor/Up to 0.92 Uniform Energy Factor The space-saving design allows Indoor Installation type Ultra low NOx emissions 199,000 max BTU
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
$1,675.0094-Percent Energy efficient with stainless-steel condensing heat exchanger Intelligent electronic controls designed to increase energy efficiency and safety Third party efficiency listed by AHRI Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PV... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Watts Tankless Water Heater Service Valve Kit
TANKLESS WATER HEATER VALVE KIT: Watts LFTWH-FT-HCN service valve kit for tankless water heater valves simplify the installation, maintenance and operation of tankless water heaters. SERVICE VALVE KIT FOR TANKLESS WATER HEATER: The tankless water hea... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater, 6.6 GPM - Natural Gas
Endless hot water Can be vented with Schedule 40 PVC Pipe and Fitting High Efficiency Low Nox Remote thermostat & 6' power cord included
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Natural Gas Tankless Water Heater On Demand Hot Water Heater Indoor Use 7.0 GPM 170,000BTU 120V AC White
$599.99Tankless Water Heater: No need to wait 30 minutes for preheating and limited use of hot water like with a tank water heater. Tankless for endless hot water. Satisfy Whole Family: With 7.0 GPM and 170,000 BTU heating capacity through natural gas intak... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Kelaro Tankless Water Heater Flushing Kit - Just add Vinegar Descaler
$108.97***Kit requires 2 gallons of white vinegar*** Not included. Some tankless manufacturers recommend using vinegar or another cleanser for flushing their equipment. Can also save money if you have vinegar at home already. Helps maintain the performance ... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White
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... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RUCS65IN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Indoor Installation
$1,160.24Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
$1,099.00Exclusive Water Savings technology conserving up to 1, 100 gallons per year 199, 900 BTU (gas consumed per hour) Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state Recirculation pump ready kit ready For use indo... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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 a... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RL94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Optimal Water Pressure: High-performance 9.8 GPM hot water flow rate for a powerful, constant stream Instant Heating: Circ-Logic technology enables recir... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTGH-84DVLN-2 Professional Prestige Series: 8.4 GPM Indoor Tankless Water Heater, Gray
$1,345.74Condensing Technology for Greater Efficiency and Significant Energy Savings Residential Temperature Settings: 98°F - 140°F Manufactured in Mexico
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RUCS75iP Tankless Hot Water Heater, 7.5 GPM, Propane, Indoor Installation
$1,071.60Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23
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 s... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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 150 A
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RUCS75iN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation
$1,071.60Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Superior Pump 91660 Tankless Water Heater Descaler Pump Kit, Deluxe, Black
$125.87Superior Pump 91660 Descaler Pump Kit is designed to clean and descale most Tankless Water Heaters Descaler kit includes 1/6HP pump, Deluxe 3.5 gallon pail with screw top lid, two 3/4-inch GHT X 6-foot stainless steel hoses, and 7oz non-toxic descale... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology
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
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RU180eN Natural Gas Condensing Tankless Hot Water Heater, 10 GPM
$1,605.75Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RUR199eN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Outdoor Installation
$2,178.75Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rinnai RU199eN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM
$1,749.75Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Opti... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver. For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment. Easy... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Rheem RTG-84XLN-1 Performance Mid-Efficiency Tankless 84 Outdoor Water Heater, Gray
$799.00Exclusive Water Savings technology conserving up to 1, 100 gallons per year 157, 000 BTU (gas consumed per hour) Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state Recirculation pump ready kit ready For use outd... read more
(as of January 17, 2022 01:02 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White
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... read more
(as of January 17, 2022 00:09 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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 a... read more
(as of January 17, 2022 00:09 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)