Best Condensing Tankless Water Heater

Rinnai V65eN Non-Condensing Natural Gas Tankless Water Heater, Outdoor Installation, Up to 6.5 GPM

Original Design: Tankless hot water heater only heats when necessary to conserve energy.
For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE160eN 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 6.5 GPM (5 fixtures at once).
Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai V94iN Non-Condensing Natural Gas Tankless Water Heater, Indoor Installation, Up to 9.8 GPM

Original Design: Tankless hot water heater only heats when necessary to conserve energy.
For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE199iN 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: Enhanced scale detection helps prevent serious, long-term damage to unit.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai V75iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 7.5 GPM

Original Design: Tankless hot water heater only heats when necessary to conserve energy.
For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE180iP model.
Never Run Out of Hot Water with this Compact Propane 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: Enhanced scale detection helps prevent serious, long-term damage to unit.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai V94eP Non-Condensing Propane Tankless Water Heater, Outdoor Installation, Up to 9.8 GPM

Original Design: Tankless hot water heater only heats when necessary to conserve energy.
For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE199eP model.
Never Run Out of Hot Water with this Compact Propane 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: Enhanced scale detection helps prevent serious, long-term damage to unit.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Water Pipe Dab Mix

Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits.
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....
Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger,....
Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your....
Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for....

Check Stock

CODEX GIGAS Trap Metal

Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits.
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....
Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger,....
Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your....
Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for....

Check Stock

Rinnai RE140iN Non-Condensing Natural Gas Tankless Water Heater, Up to 5.3 GPM, Indoor Installation, 140,000 BTU

Smart Design: Improved design of tankless hot water heater only heats when necessary to conserve energy.
Speeds installation and enhances serviceability with a cleaner internal layout.
LED screen provides service reminders and error codes.
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This non-condensing indoor tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 5.3 GPM (5 fixtures at once).
Smart, Durable Design: Water heater fits a wide array of spaces.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai RSC199iP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU

Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience.
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 11 GPM (7 fixtures at once).
Smart, Durable Design: With multiple venting options, water heater fits a wide array of spaces.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai RSC199eP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane Heater, Up to 11 GPM, Outdoor Installation, 199,000 BTU

Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience.
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This outdoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 11 GPM (7 fixtures at once).
Smart, Durable Design: With no venting required, water heater fits a wide array of spaces.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai RSC160iP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane Heater, Up to 9 GPM, Indoor Installation, 160,000 BTU

Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience.
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 9 GPM (6 fixtures at once)..
Smart, Durable Design: With multiple venting options, water heater fits a wide array of spaces.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai RSC160eP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane Heater, Up to 9 GPM, Outdoor Installation, 160,000 BTU

Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience.
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This outdoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 9 GPM (6 fixtures at once).
Smart, Durable Design: With no venting required, water heater fits a wide array of spaces.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock

Rinnai FC824P Space Heater with Fan Convector, Propane Gas & V65iP Non-Condensing Propane Tankless Water Heater, Indoor Installation, Up to 6.5 GPM

Product 1: Portable Design: Vent-free gas fan convection heater is suitable for homes, apartments, condominiums, and commercial settings.
Portable heater is modular/mobile home approved.
Product 2: Original Design: Tankless hot water heater only heats when necessary to conserve energy.
For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE160iP model.
Product 2: Never Run Out of Hot Water with this Compact Propane 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 6.5 GPM (5 fixtures at once).
Product 2: Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit.
Includes 15-, 5-, and 1-year residential guarantee for heat exchanger, labor, and parts, respectively.
See Controlr module for WiFi control (not included).
Product 2: 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.

Check Stock

Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU

Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience.
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 11 GPM (7 fixtures at once).
Smart, Durable Design: With multiple venting options, water heater fits a wide array of spaces.
Includes 15-, 5-, and 1-year residential guarantee 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.

Check Stock