Rinnai tankless water heaters deliver continuous hot water on demand. Choose condensing or non-condensing, indoor or outdoor, natural gas or propane models for homes and commercial buildings.

Showing 1–24 of 82 results

Rinnai CU160iN Commercial Tankless Water Heater, 9 GPM

$931.66

The RINNAI cu160in is a commercial-grade condensing tankless water heater built for high-demand, continuous hot water delivery in large-scale applications. Rated at a maximum flow rate of 9 GPM, this unit provides on-demand hot water without the standby losses associated with storage tank systems.

Rinnai CU199EN Sensei – 199,000 BTU – Commercial Natural Gas Tankless Water Heater

$1,245.45

The Rinnai Sensei CU199EN is a commercial natural gas tankless water heater that delivers 199,000 BTUs and achieves a 97% energy factor, ideal for commercial applications. This unit is designed for outdoor installation and uses innovative condensing technology to provide continuous hot water.

Rinnai CU199IN SENSEI CU Series 199 MBH Indoor Condensing Natural Gas Tankless Water Heater

$1,664.93

The Rinnai CU199IN is a tankless water heater designed for indoor use with natural gas. This unit delivers a heating capacity of 199,000 BTUs, making it suitable for commercial needs.

Rinnai CU199IP SENSEI CU Series 199 MBH Indoor Condensing Propane Gas Tankless Water Heater

$1,269.91

The Rinnai CU199IP is a tankless water heater designed for indoor use. It has a heating capacity of 199,000 BTU, making it suitable for commercial applications where hot water demand is high.

Rinnai CX160I SENSEI CX Series Commercial Indoor Tankless Water Heater 160,000 BTU/H without pump

$1,372.72

The Rinnai CX160I is a super-high-efficiency (condensing) tankless water heater from the SENSEI CX Series, designed for commercial indoor applications without a pump. This unit offers a maximum domestic hot water flow rate of 9.0 GPM and a maximum BTU/H of 160,000.

Rinnai CX160iN Sensei CX Series Tankless Water Heater 160000 BTU

$972.62

The RINNAI CX160iN Sensei CX Series tankless water heater is a super high-efficiency, Energy Star certified commercial unit. Designed for indoor or outdoor installation, it features a Smart Sense gas valve that adjusts to either natural gas or propane.

Rinnai CX199I Condensing Tankless Water Heater 199K Btu

$1,598.21

The RINNAI CX199I is a condensing tankless water heater rated at 199,000 BTU/h with a 97 percent thermal efficiency rating. It operates on a continuous on-demand flow model, heating water only when there is demand rather than maintaining a stored tank.

Rinnai CX199IN 11.0 GPM Sensei CX Series Commercial Condensing Tankless Hot Water Heater

$1,132.25

The Rinnai CX199IN is an eleven gallons per minute tankless hot water heater designed for commercial use. This unit provides an endless supply of hot water, making it ideal for large establishments needing consistent hot water access.

Rinnai CXP199iN CXP Model Series Commercial Tankless Water Heater 11 GPM

$2,214.17

The Rinnai CXP199iN CXP Model Series Commercial Tankless Water Heater is designed for commercial applications. It features direct electronic ignition and flexible venting options with 2" venting up to 75 feet.

Rinnai R-RE160eP High Efficiency 6.6-GPM 160000-BTU Outdoor Liquid Propane Tankless Water Heater

$620.56

The Rinnai R-RE160eP is a high-efficiency outdoor liquid propane tankless water heater. Ideal for small to medium homes, this unit provides hot water on demand.

Rinnai R-RE180eN High Efficiency Tankless Water Heater 180000-BTU 8.5-GPM

$684.96

The Rinnai R-RE180eN is a high-efficiency tankless water heater designed for outdoor natural gas use, delivering 8.5-GPM with 180000-BTU. Ideal for small to medium homes, this unit provides hot water on demand, saving energy and reducing utility costs.

Rinnai R-RE180eP HE 180k BTU Propane Exterior Tankless Water Heater

$685.84

The Rinnai R-RE180eP is a propane gas tankless water heater designed for high efficiency and reliability. With a compact size similar to a small suitcase, it is suitable for outdoor installations and ideal for small to medium homes.

Rinnai R-RE180iP High Efficiency 8.5-GPM 180000-BTU Indoor Liquid Propane Tankless Water Heater

$685.84

The Rinnai R-RE180iP is a high-efficiency tankless water heater that provides an output of eight point five gallons per minute and operates at one hundred eighty thousand BTUs. This propane gas unit is designed for indoor use, making it suitable for small to medium homes or remodels.

Rinnai R-RE199eN High Efficiency 9.8-GPM 199000-BTU Outdoor Natural Gas Tankless Water Heater

$797.03

The Rinnai R-RE199eN high-efficiency tankless water heater delivers 9.8-GPM with 199000-BTU for outdoor natural gas applications. Ideal for small to medium homes, this unit provides hot water on demand, saving energy and space.

Rinnai R-RE199eP High Efficiency 9.8-GPM 199000-BTU Outdoor Liquid Propane Tankless Water Heater

$795.00

The Rinnai R-RE199eP is a high efficiency 9.8-GPM 199000-BTU outdoor liquid propane tankless water heater. Ideal for small to medium homes, this unit provides hot water only when needed, saving energy and reducing utility costs.

Rinnai R-RE199iN Re Model Series High Efficiency Non Condensing

$840.13

The Rinnai R-RE199iN Re Model Series High Efficiency Non Condensing is ideal for small to medium homes or remodels. This natural gas, non-condensing tankless water heater is easy to install and reliable, perfect for indoor locations.

Rinnai R-RE199iP High Efficiency Tankless Water Heater 9.8-GPM 199000-BTU

$793.05

The Rinnai R-RE199iP is a high-efficiency propane gas tankless water heater, offering a perfect combination of comfort and value. Ideal for small to medium homes or remodels, it's compact, easy to install, and reliable for indoor locations.

Rinnai R-REP199en Natural Gas Non-Condensing Tankless Water Heater 199,000 BTU

$1,180.76

The Rinnai R-REP199eN natural gas non-condensing tankless water heater is ideal for small to medium homes or remodels. This tankless water heater provides a perfect combination of high efficiency, comfort, and value.

Rinnai R-REP199ep Gas Tankless Water Heater 199,000 BTU

$1,125.84

The Rinnai R-REP199eP gas tankless water heater is a high-efficiency propane unit ideal for small to medium homes. Designed for outdoor installation, it frees up interior space and provides endless hot water.

Rinnai R-REP199iN Rep Model Series High Efficiency Non Condensing Includes A Built-In Recirculation Pump

$1,120.21

The Rinnai R-REP199iN Rep Model Series is a high-efficiency, non-condensing tankless water heater that includes a built-in recirculation pump. Ideal for small to medium homes, this natural gas unit is easy to install and reliable.

Rinnai R-REP199iP Rep Model Series High Efficiency Non Condensing Includes A Built-In Recirculation Pump

$1,125.84

The Rinnai R-REP199IP Rep Model Series is a high-efficiency, non-condensing tankless water heater that includes a built-in recirculation pump. Ideal for small to medium homes, this unit is easy to install and reliable.

Rinnai RE140eN RE Series 140,000 BTU Outdoor Natural Gas Tankless Water Heater

$580.25

The Rinnai RE140EN is a natural gas tankless water heater with a maximum output of 140,000 BTU. It is suitable for small to medium homes and is designed for outdoor installation.

Rinnai RE140EP RE Series 140,000 BTU Outdoor Non-Condensing Propane Tankless Water Heater

$580.25

The Rinnai RE140EP is a tankless water heater designed for outdoor use, utilizing propane as a fuel source. This model features advanced Wi-Fi technology that allows for remote monitoring and management, as well as efficient recirculation control.

Rinnai RE140iN RE Model Series 140 MBH Indoor Non-Condensing Natural Gas Tankless Water Heater

$609.26

The Rinnai RE140iN is a natural gas tankless water heater designed for indoor use. It provides efficient hot water delivery with a maximum output of one hundred forty thousand BTUs.