With so many Best Condensing Gas Boiler brands on the market – from prominent names like Rinnai to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.
We extensively tested and evaluated dozens of top-rated Best Condensing Gas Boiler across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best Condensing Gas Boiler to consider. Our top recommendation is Rinnai Best Condensing Gas Boiler for its uncompromising quality and performance.
Below you’ll discover more of our favorite Best Condensing Gas Boiler picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best Condensing Gas Boiler you’ll truly love.
Editor's Choice
Rinnai i090CN Condensing Gas Boiler, Whole Home Heating and Water Natural Gas Heater with
Premium Pick
Rinnai i060CN Condensing Gas Boiler, Whole Home Heating and Water Natural Gas Heater with
Budget Pick
Rinnai i060SN Condensing Gas Boiler, Whole Home Natural Gas Heater with Space-Saving Design and
Top 10 Best Condensing Gas Boiler
We researched and compared the top products in the Best Condensing Gas Boiler category to provide you with these recommendations.
1. Rinnai i090CN 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
2. 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
3. Rinnai i060SN 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
4. Rinnai i120SN 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
5. 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
6. Rinnai i090SN 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
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. 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
9. Rheem RTGH-95DVLN-3 RTGH Series 9.5 GPM 199,900 BTU 120 Volt Residential Indoor Natural Gas Tankless
- Flow rate of 0.4 - 9.5 GPM
- Available temperature settings range from 100 to 140F (default setting of 120F)
- Includes electric ignition
- Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
- Width 17-11/16-in
10. Calefactio #CS2 CondenSAFE condensate Neutralizer kit for Residential condensing Gas Boiler, Water
- CondenSAFE CS2 neutralizes condensate issued by modulating condensing gas heating devices such as boilers and water heaters. A pipe links the heating device to the CondenSAFE CS2 unit to treat the condensate. The media in the unit neutralizes the condensate pH to make it safe for the building components and most importantly, the environment.
- The CondenSAFE CS2 is compact and easy to install with its included wall supports. The condensate neutralizer from Calefactio includes one section including an engineered media bag that should be replaced every 12 months to protect the environment and the components of the buildings. No disconnection required to replace it. No more dirty media replacement.
- A 12-month time indicator that must be activated and stick to the top of the unit is included so the user knows exactly when to replace it. The unit weighs 1.3 kg including one media bag and the connections.
- Brackets are included to fix the unit to the wall
- Engineered media is contained in a replaceable bag
- Treatment capacity - The condensate neutralizer unit must neutralize a condensate volume of 2.1 gal/h (8 L/h) from a 525 MBH (154 kWh) capacity heating device
- Time indicator (12 months) included
- No by-pass needed / Can be connected to hard piped
- Economical and environment friendly / Long-life heavy duty tank and cover
- Included: One straight fittings MNPT X glued + One 90 elbow MNPT X glued
Peter
Related Posts
- Best Fiberglass Tub Refinishing Kit
- Best Car Seat Covers For Honda Crv
- Best Coffee Travel Mug Zojirushi
- Best Led Bulbs For Bathroom
- Best Enamel Repair Toothpaste
- Best Clay Trap Thrower
- Best Garage Door Weather Stripping Bottom
- Best Pesticide For Fleas
- Best Yaesu Handheld Ham Radio
- Best 6.0 Egr Delete Kit
- Best Host Defense Products
- Best Snap On Scanner
- Best Store Bought Pita Bread For Gyros
- Best Detachable Shower Head For Low Water Pressure
- Best Prenatal Vitamins Hair Growth
- Best Color Changing Led Christmas Lights
- Best Stippling Pen
- Best Boat Deck Paint
- Best Supplements For Teenage Growth
- Best Iwb Holster For Sig P320 X Carry