You will find our hand-picked selection of Best Condensing Boiler below. You have a wide variety of choices of brands such as Rinnai,American Valve,Rheem available to you as a result of the fact that each one of them has a unique pricing, look, and feel. Continue reading for an in-depth analysis in our Best Condensing Boiler buying guide!
Our experts tested a variety of Best Condensing Boiler on the market. Right at the top of the list is Rinnai Best Condensing Boiler. Check out some more of our favorites below, and read some valuable insight from our experienced editors.
Editor's Choice
Rinnai i150SN Condensing Gas Boiler, Whole Home Natural Gas Heater with Space-Saving Design and
Budget Pick
Rinnai i060CN Condensing Gas Boiler, Whole Home Heating and Water Natural Gas Heater with
Top 10 Best Condensing Boiler
We researched and compared the top products in the Best Condensing Boiler category to provide you with these recommendations.
1. Rinnai i150SN Condensing Gas Boiler, Whole Home Natural Gas Heater with Space-Saving Design and
- Whole Home Heater: Heat the whole house with our tankless boilers, featuring a stainless-steel heat exchanger with a modulating wire mesh burner, and experience energy-efficient warmth and comfort
- Smart Features: This high-efficiency gas boiler's multizone control capability allows thermostat and integrated control pumps to connect directly to the boiler; Wall mount heater features safety child-lock that automatically turns off central heating
- Easy Interface: Our energy efficient heater has a digital display main screen, temperature and pressure display, and an outdoor reset sensor with easy parameter settings; Adjust CH temperature between 104F and 180F and DHW between 98F and 140F
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your boiler; We do not recommend installing a heater without a technician
- Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial standard warranty for heat exchanger, parts, and labor respectively
2. Solo Boiler CH 90K BTU
- Unmatched Energy Efficiency: The Rinnai I-SERIES Plus Boiler achieves up to a 96% AFUE, providing significant energy savings and lowering operational costs for professionals in demanding applications
- Smart Home Compatibility: Equipped with Smart Connect technology, this boiler offers Wi-Fi remote access and Bluetooth connectivity through the Rinnai Central App, allowing users to monitor and manage their system conveniently from anywhere
- Versatile Fuel Options: Featuring Smart Sense Adaptive Gas Valve technology, the I-SERIES Plus efficiently operates with either natural gas or propane, ensuring compatibility to meet various heating requirements
- Compact and Installation-Friendly Design: With 2-inch venting capabilities up to 75 feet, the I-SERIES Plus enables faster and easier installation compared to traditional models, facilitating setup in any setting
- Enhanced Performance Features: This boiler includes 4 built-in zones for optimized heating, advanced controls with a quick setup screen, and high-altitude approval up to 10,100 feet, ensuring reliable performance in diverse environments
3. Rinnai i060CN Condensing Gas Boiler, Whole Home Heating and Water Natural Gas Heater with
- Whole Home and Water Heater: Heat the whole house with our tankless boilers, featuring a stainless-steel heat exchanger with a modulating wire mesh burner, plus a built-in domestic hot water plate heat exchanger for showers and faucets
- Smart Features: This high-efficiency gas boiler's multizone control capability allows thermostat and integrated control pumps to connect directly to the boiler; Wall mount heater features safety child-lock that automatically turns off central heating
- Easy Interface: Our energy efficient heater has a digital display main screen, temperature and pressure display, and an outdoor reset sensor with easy parameter settings; Adjust CH temperature between 104F and 180F and DHW between 98F and 140F
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your boiler; We do not recommend installing a heater without a technician
- Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial standard warranty for heat exchanger, parts, and labor respectively
4. NEW Rinnai RXP199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or
- One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
- Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 11.1 GPM (7 fixtures at once)
- Smart, Efficient Design: This water heater's modern design includes an easy-to-use interface, Quick Flush feature for simplified flushing, as well as a super-high energy efficiency factor of UEF .98; See Controlr module for WiFi control (not included)
- Smart-Circ Intelligent Recirculation: This tankless hot water heater includes an internal pump and features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirculation accordingly for best efficiency and convenience
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to find a qualified technician to install your tankless water heater, and use the Rinnai Central App for help with setup, service & troubleshooting; We do not recommend installing a water heater without a technician
5. American Valve CondensateRx Condensate Neutralizer Formulated for High-Efficiency Condensing Boilers
- This Condensate neutralizer kit includes 1/2-inch FNPT (Female National Pipe Thread) with adapters for 1/2-inch hose barb and 3/4-inch PVC socket.
- The low-profile design connects directly to the drain line and can be installed straight or vertically up to an angle of 30 degrees.
- Complies with local plumbing codes requiring acid neutralizer for condensate drain and reduces the risk of wastewater violations.
- Made in the USA
- 220,000 BTU per hour maximum boiler size
- 3.8 gallons per hour maximum flow rate
- 100 degree Fahrenheit maximum operating temperature
6. Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation
- Hot water without the wait - or the waste
- Low operating cost - High energy efficiency and water savings setting
- Space Savings - Compact, space-saving design. Perfect for a tank replacement.
- Water & Gas Leak Detection will shut down unit and provide an error code
- Auto-Learn Programming - tracks water usage over a period of time and auto-programs to meet hot water needs at peak times
7. Rinnai M090SN Condensing Gas Boiler, Natural Gas (90K BTU)
- Hot water heater: Heat the whole house with this boiler featuring a self-cleaning stainless-steel heat exchanger with a modulating ceramic burner and a secondary flat plate heat exchanger for showers and faucets
- Smart Features: Multizone control capability allows thermostat and control pumps to connect directly to the boiler of the smart heater that warms the house and the tap water
- User-Friendly Interface: Electric heater features a digital display main screen, a temperature and pressure display, and an outdoor reset sensor with easy parameter settings; up/down arrows adjust the temperature between 68F and 185F
- Space-Saving Design: Compact wall-mounted design of this water heater saves space; multiple venting options include a 2-inch PVC up to 60 feet and 3-inch up to 150 feet
- Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial standard warranty for heat exchanger, parts, and labor respectively
8. Rinnai RE180iN Non-Condensing Natural Gas Tankless Water Heater, Up to 8.5 GPM, Indoor Installation,
- 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 6.9 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
9. Rinnai CU199eP Commercial Propane Condensing Tankless Water Heater, Outdoor Installation, 11 GPM
- Energy and Space Efficient Tankless Hot Water Heater: Our commercial hot water heaters feature a space-saving design that conserves energy as it heats only when necessary; Multiple venting options offer installation flexibility
- Optimal Water Pressure: This tankless water heater offers a high-performance 11 GPM hot water flow rate for the powerful, constant stream your business needs
- Smart, Reliable Heating: Rinnai Tankless Water Heaters feature Circ-Logic technology, which enables recirculation patterns that coincide with your typical habits; Wi-Fi monitoring creates hot water on demand
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your water heater; We do not recommend installing this appliance without a technician
- Guaranteed to Last: 8-, 5-, and 1-year commercial warranty for heat exchanger, parts, and labor, respectively
10. Aspen Firetube 90,000 BTU High Efficiency Wall Hung Condensing Gas Fired Boiler
Peter
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