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.
Navien Flow Sensor Tankless Water Heater
Navien Flow Sensor 30010537A
(as of July 25, 2021 - 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 RRU199iN, 11 GPM, RU199in-Natural Gas/11
Up to 11 GPM hot water flow rate (varies by groundwater temp) Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits. Hot water is available when you need it! Residential Factory Warranty - 120 months (h... read more
(as of July 25, 2021 - 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 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology,White
Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches ;Pipes fittings :3/4 inch NPT Digital temperature control in 1-degree increments allows control of hot water; Activation Flow: 0.3 GPM Copper and stainless components ... read more
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Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
94-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 July 25, 2021 - 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.)
Hydro Master 3/4-Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass
$59.98Lead Free Brass- Meets all federal & state standards for lead levels in drinking water system components Tankless Water Heater Service Valves 500WOG, colored valve handles for easy identification of hot and cold valves Include a residential pressure ... read more
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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 July 25, 2021 - 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
$116.97***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 July 25, 2021 - 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.)
Chromex Tankless Water Heater Flush Kit with Certified Liquid Descaling Solution and 1/6HP Extra Strength Pump
$129.996 Piece Tank-less Water Heater Flush Kit. Helps maintain and extend the lifespan of your tank-less water heater Kit comes with 5 gallon bucket with lid, 1/6 HP Pump, 2 Rubber hoses, descaler solution, and an elevated pump grate Our cleaning solution ... read more
(as of July 25, 2021 - 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 NR66ODNG Outdoor Tankless Water Heater, max. 140,000 Btuh, 6.6 Gpm - Natural Gas
$792.99Endless hot water Ideal for outdoor applications High Efficiency Low Nox UEF: 0.81
(as of July 25, 2021 - 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.)
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute, 199,000 BTU
$1,133.00Endless 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 Satisf... read more
(as of July 25, 2021 - 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.)
Twinkle Star 3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit, with Pressure Relief Valve, Clean Brass Construction
$55.99Twinkle Star 3/4 Inch Isolation Kit involves hot and cold valves 500WOG with 1/4 red and blue handles for easy identification and use. Integrated drain valve with brass safety cap for easily maintenance. Equipped with full port ball valve for better ... read more
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Kelaro Tankless Water Heater Flushing Kit with Flow-Aide Biodegradable Descaler
$133.97Helps maintain the performance and extend the life of your tankless hot water heater. Everything you need in one kit to descale your tankless water heater in 45 minutes or less | Suitable for DIY Homeowner use with easy directions. Includes 1/8 HP Ut... read more
(as of July 25, 2021 - 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.)
Xiny Tool 3/4-Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass
$49.99Package include: 3/4 Inch Isolation Kit involves hot and cold valves 500WOG with 1/4 red and blue handles, equipped with full port ball valve for better flow rate. Easy to use: Tankless water heater repair valve 500WOG, red and blue valve handle, eas... read more
(as of July 25, 2021 - 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
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Rinnai RL94EN RRL94eN, Large, RL94eN-Natural Gas/9.4 GPM
$1,439.25RL94eN HE+ High Efficiency Tankless Hot Water Heater - Natural Gas: Outdoor Installation Only Up to 9.4 GPM hot water flow rate (varies by groundwater temp) Circ-Logic technology allows you to set recirculation patterns that coincide with your typica... read more
(as of July 25, 2021 - 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.)
Hourleey 3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit, with Pressure Relief Valve, Clean Brass
Package include: 3/4 Inch Isolation Kit involves hot and cold valves 500WOG with 1/4 red and blue handles, equipped with full port ball valve for better flow rate. Easy to use: Tankless water heater repair valve 500WOG, red and blue valve handle, eas... read more
(as of July 25, 2021 - 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 V65EN RV65eN, Large, White
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Optimal Water Pressure: High-performance up to 6.5 GPM hot water flow rate for a powerful, constant stream Enhanced scale detection lessens possibility o... read more
(as of July 25, 2021 - 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.)
Metpure TKLS-CK Tankless Water Heater natural propane gas Isolation Valve 3/4" Kit | Compatible Noritz Rheem Rinnai Takagi Navien Service Flushing Valves| Lead-Free Complete Easy to Install Flush Kit
$124.99 ($124.99 / Count)◼️ TOP QUALITY: This complete kit includes all components that are crafted from high quality materials for years of usage. The main isolation valve set is factory tested to be leak free so you can be confident that your heater can be maintained perio... read more
(as of July 25, 2021 - 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 NR50ODNG Outdoor Tankless Water Heater, max. 120,000 Btuh, 5.0 Gpm - Natural Gas
$645.11Endless hot water Ideal for outdoor applications High Efficiency Low Nox
(as of July 25, 2021 - 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, Black
$117.35Superior Pump 91660 Descaler Pump Kit is designed to clean and descale most Tankless Water Heaters Descaler kit includes 1/6HP pump, 3.5 gallon pail with screw top lid, two 3/4-inch GHT X 6-foot stainless steel hoses, and 7oz non-toxic descaler powde... read more
(as of July 25, 2021 - 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 RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray
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 instal... read more
(as of July 25, 2021 - 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 July 25, 2021 - 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 V65EP RV65eP, Large, Propane
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary Optimal Water Pressure: High-performance up to 6.5 GPM hot water flow rate for a powerful, constant stream Enhanced scale detection lessens possibility o... read more
(as of July 25, 2021 - 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.)
EZ Ultra HE Natural Gas Indoor Condensing Tankless Water Heater - Digital Display - Whole Home
$619.99Condensing Technology - The EZ Ultra HE uses exhaust gas to preheat incoming water for added efficiency. This heater can be vented horizontally or vertically using 2" Solid Core Schedule 40 PVC/CPVC Back-draft prevention device and stainless steel ho... read more
(as of July 25, 2021 - 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.)
Libra Supply 3/4 inch IPS Isolator Tankless Water Heater Service Valve Kit – 3/4'' FNPT X FNPT Thread Brass Isolation Set with Pressure Relief Valve | Pipe Fittings, Supplies & Spare Parts
Control Valve Set: Ideal to control the water flow, this pressure release valve has been developed for both residential and commercial tankless water heater usage. It is often used for heavy-duty plumbing connections. Rugged Construction: The water h... read more
(as of July 25, 2021 - 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 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology,White
Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches ;Pipes fittings :3/4 inch NPT Digital temperature control in 1-degree increments allows control of hot water; Activation Flow: 0.3 GPM Copper and stainless components ... read more
(as of July 24, 2021 - 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,White
The product is highly durable The product is easy to use Manufactured in China Copper and stainless components Lifetime warranty for residential use Save up to 60% on your water heating costs with the most advanced, self modulating technology availab... read more
(as of July 24, 2021 - 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.)