10 Best Gas Boilers For Home Heating of October 2025

List of Top Rated Gas Boilers For Home Heating from thousands of customer reviews & feedback.

Updated On Oct 2025

1,512 Reviews Studied

By Customer Ratings

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Rinnai M060SN Indoor Condensing Gas Boiler, 60k BTU, M060SN-Natural Read Review

  • Rinnai M060SN - Natural Gas Condensing Boiler
  • Flexible venting options with approved Concentric, PVC, CPVC, Stainless Steel, Polypropylene (rigid and flex), for single-pipe exhaust, room air and two-pipe systems
  • Stainless steel primary boiler heat exchanger for unmatched performance and durability; Copper nickel integrated DHW plate heat exchanger
  • Compact wall-mounted design saves space over traditional boilers
  • Features an integrated modulating pump, and outdoor reset sensor (in the box)

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Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute, 199,000 BTU Read Review

  • Endless 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
  • Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
  • Primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steel, Integrated controls and power cord as standard features

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Rinnai Indoor Condensing Gas Boiler / i120SN / NG | LP / 120k BTU/Solo Read Review

  • Rinnai i120SN - Natural Gas Condensing Boiler
  • The i120SN condensing gas boiler heat-only model offers the comfort of whole home heating.
  • This heat-only model offers an outdoor reset to optimize your home heating performance and features an integrated modulating pump, with an outdoor reset sensor (in the box)
  • Excellent operational performance with 95% AFUE efficiency and Energy Star Most Efficient certified.
  • Convenient control options with the ability to connect two zone pumps to the PCB.
  • Easy parameter settings and a user-friendly interface.
  • Versatile venting options including 2-inch PVC up to 65 feet.
  • Quick Natural Gas (NG) to Propane (LP) gas conversions (kit included)

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EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology,... Read Review

  • 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 designed for efficiency, durability and easy replacement.
  • Compact size saves valuable storage space, while the stylish and advanced design is pleasing to the eye and Copper and stainless components designed for efficiency, durability and easy replacement.
  • Prior to purchase & installation, please verify that this model is the right size for your hot water needs and electrical requirements. Electrical requirements: 27 kW, 240 volts, (3) 40 required breakers, 112.5 maximum power (AMP), (3) 8 required wire.Amperage Draw:113 A
  • Required Breaker Quantity: Three 40 Amp Double Pole
  • Recommended Electrical Panel: 200 Amps
  • NEVER run out of hot water with an ECOSMART tankless water heater.
  • Save up to 12 cubic feet of storage space.
  • Digital temperature control in 1-degree increments gives users complete control of hot water

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Smart Thermostat, alexa Thermostats for home, LCD Touch-screen Programmable Thermostat Gas Boiler Heating, 3A Digital Te... Read Review

  • [Quality Material] Made of premium flame-retardant PC and ABS material, more durable & safer.
  • [3.5-inch Large Display Screen] High-definition VA LCD screen with backlight, easy to operate and read values in low illumination environment.
  • [One-touch Temperature Control] Preset temperatures maintain within ±1°C.
  • [5+1+1 Six Periods Programmable] Maximize comfort and economy.
  • [Data Memory Function] Data will be automatically memorized when it powers off so that you don' t need to worry about data lost when the power is suddenly off.

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EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology Read Review

  • Lifetime warranty
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Never run out of hot water with an ECOSMART tankless water heater
  • Patented Self Modulating Technology and design
  • ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98

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Damaila WiFi Smart Thermostat Temperature Controller for Tuya, Used for Electric Floor Heating, Water/Gas Boiler Voice W... Read Review

  • *LCD TOUCH SCREEN: elegant appearance, single-sided design, scratch-resistant. Large LCD touch screen display with backlight, easy to read
  • *APP/VOICE CONTROL & MANUAL/AUTO MODE: Smart control, thermostat that can be controlled by mobile phone (APP: Tuya/Smart Life. Voice control by GoogleHome Alexa). You can freely choose manual or automatic mode according to different purposes
  • *PROGRAMMABLE: The thermostat supports different temperature settings through 6 time modes every day
  • *ACCURATE TEMPERATURE: internal sensor floor sensor, perceivable ambient temperature and floor temperature. The temperature is automatically acquired with an accuracy of 1°C
  • *MEMORY & CHILD LOCK: Don't worry about data memory when power is off. The keyboard lock function of the child lock is designed to prevent misuse by children and avoid parents’ concerns