Natural Gas and Propane Hot Water & Steam Boilers

Pick the Perfect Boiler or Furnace for your Heating Needs

Gas Doctor is proud to carry a wide range of boilers that can meet any home's heating needs and your budget. We carry boilers from Lochinvar, Weil Mclain, Viessmann, and more. Modern boilers use less energy and space in your home while providing a better level of comfort.

Boilers use piping throughout your home to bring the heat to baseboards or radiators to each of your rooms in your home.

Hot Water Boiler

Viessmann Vitoden 100-W

Viessmann Vitoden 100-W

Featuring Viessmann's exclusive stainless steel Inox-Radial heat exchanger and MatriX cylinder burner, the Vitoden 100-W offers class-leading reliability. The heat exchanger is "self-cleaning", contributing to the boiler's long life.

  • AFUE 95%
  • Traditional Boiler and combi boiler options
  • Low-emission combustion with fully-modulating Viessman stainless steel matrix cylinder burner for natural gas or propane.
  • User-friendly backlit LCD touch screen boiler control
  • Lasting performance with proven Viessmann stainless steel inox-radial heat exchanger constructed to CSA B51 and ASME Section IV
  • Quiet operation, quieter than most fridges
  • Built-in on-demand hot water for combi models
  • Stainless steel helps to max performance and reliability
  • Compact design zero clearance to combustibles
  • Limited residential limited warranty
  • Inox-radial heat exchanger and matrix cylinder burner developed by Viessmann to maximize performance and reliability
  • Self-cleaning heat exchanger
  • Vitoden 222-F Gas Boiler

    Vitoden 222-F

    A great space-saving boiler, combining home heat and domestic hot water with an amazing design. The compact size doesn't skimp on the performance, Viessmann’s own designed stainless steel heat exchanger and the burner will keep you warm and comfortable all winter long.

  • Traditional and combi water heater models
  • Compact size
  • Domestic on the spot water heating
  • Natural gas or propane
  • Optimized for max performance with an intelligent lambda pro combustion management system. Adapts combustion to changing gas qualities and operating condition automatically, this is important if and when the gas supply to your home fluctuates.
  • 98% efficient at full modulation
  • 95% AFUE
  • Low-emission combustion
  • Energy-star requirements
  • Four venting options
  • Intelligent Lambda pro-gas management
  • 10-minute peak flow for 60 gallons
  • Pre-installed pressure relief valves
  • Zero side clearance requirements
  • viessmann vitocrossal boiler

    Vitocrossal 300CU3A

  • Compact, floor-standing gas condensing boiler
  • 95% AFUE
  • Operates at 194 Degrees
  • Vitocrossal Pocket Design, with wide water passageways, allow for fuel flow applications. No pump is required for the boiler and reduces the required piping
  • MatriX dome gas burner, high efficiency, and extremely clean combustion efficiency at all times regardless of gas/air quality. Works with Natural Gas and Propane
  • Durable, reliable, and long service life with inox-crossal stainless steel heat exchanger and high mass design.
  • Multiple venting options
  • It can be installed with multiples boilers.

  • Lochinvar Noble Series Boiler

    Lochinvar Noble Series

  • Combi Boiler, combines a water heater and boiler
  • Smart controls via an enchanced OS
  • Three sizes 100,000 & 150,000 & 199,999 Btu/hr
  • AFUE (Annual Fuel Utilization Efficiency) up to 95%
  • Industry leading domestic hot water delivery, up to 4.8 gallons per hour
  • True instantaneous response
  • Easy install & service
  • User friendly LCD interface
  • Made in the USA
  • Direct Venting: Fire different venting options
  • Quiet operation: The noble combi boiler operates so quite you often have to look at the display screen to make sure it's running
  • Advanced negative regulation: safely and reliably operates with supply gas pressure as low as a 4-inch water column. Eliminates mechanical dampers as it auto-adjusts fan speed for correct volume and mixture of fuel and air.

  • Lochinvar Noble Series Boiler

    Weil McLain GV 90

    Long-lasting cast primary heat exchanger with a non-prorated 20-year warranty. Stainless-steel condensing secondary heat exchanger recoups exhaust heat energy for maximized savings. First cast iron boiler capable of venting with PVC. The smart circulator strategy allows for low return water temperature, two circulators prevent condensation of flue gas and allow return water temps as low as 60 degrees.

  • 91% AFUE
  • Durable cast iron primary heat exchanger
  • Condensing stainless steel secondary heat exchanger
  • Unique 7 pass heat exchanger design maximizes heat transfer
  • Vent with PVC with several different venting options
  • Quick Open top swing-away burner door with full chamber access, increases visibility for inspection and service.
  • Two flue outlets at the rear and top of the unit provide complete venting flexibility.
  • Recessed target wall design protects the unit from flue brushes

  • Call Us Today (401) 942-5223 • Office Located in Providence, RI

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