Gas-Fired Water Boilers Provide Years of Efficient Heat. If you’re looking for cozy, even heat from an energy-efficient source, Jett's Heating & Air Inc. in McHenry will help you find a gas-fired water boiler to meet your needs. With many ENERGY STAR® qualified options, we’re positive we have the Lennox® gas-fired water boiler for you. Our high-efficiency boilers offer extensive features. GWM-IE BoilerWith a 95% AFUE rating,* The GVM-IE boiler is ENERGY STAR® qualified and up to 40% more efficient than conventional boilers. It contains an electronic ignition control, which matches power to the burner to your household’s usage to help ensure it saves as much fuel as possible while helping your home stay at a comfortable temperature. Reliable, self-cleaning, stainless steel heat exchanger converts unused energy into usable heat Sealed combustion keeps operating noise at a minimum Modulating power perfectly meets your comfort needs by letting the burner to fire at as low as 20% of its capacity Stainless steel mesh burner fights corrosion and oxidation CPVC flue condensate collector is corrosion-resistant and eliminates the use of metal in the venting area 15-year limited warranty on heat exchanger, 10-year limited warranty on remaining covered components Efficiency Rating (AFUE): up to 95 Product Brochure Contact Us to Learn More GWB9-IH Boiler Painless to use with an existing, traditional radiator system, the GWB9-IH boiler is ENERGY STAR qualified. In fact, it carries an AFUE rating of 90%.* It also transfers heat potentially three times quicker than a typical cast-iron exchanger, thanks to its cast-aluminum heat exchanger. Tough, heavy-gauge steel cabinet with baked-on paint finish [Compact|Condensed|Small]38] design for installation flexibility Minimized noise from sealed combustion Electronic ignition controls water temperature and turns on the burner only when needed Burns natural gas or can convert to LP gas 15-year limited warranty on heat exchanger, 10-year limited warranty on remaining covered components Efficiency Rating (AFUE): up to 90 Product Brochure Contact Us to Learn More GWB8-IE Boiler So much more efficient than an older boiler, the GWB8-IE boiler carries an 84.4% efficiency rating.* Even better is its ability to work with traditional radiator systems. Electronic ignition oversees water temperature and turns on the burner only when needed Thick fiberglass insulation minimizes off-cycle heat and energy loss Cast-iron heat exchanger and titanium burners designed for years of reliability Comes in six different sizes for ultimate installation flexibility Burns natural gas or can convert to LP gas 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts Efficiency Rating (AFUE): up to 84.4 Product Brochure Contact Us to Learn More GWB8-E Boiler This standard-efficiency boiler will perform for many years because it’s built from quality materials, including a long-lasting cast-iron heat exchanger and durable stainless steel burners. Electronic ignition monitors water temperature and ignites the burner only when needed Thick fiberglass insulation minimizes off-cycle heat and energy loss Compatible with traditional radiator systems Comes in nine different sizes for installation anywhere in your home Burns natural gas or convertible to LP gas 20-year limited warranty on heat exchanger, 1-year limited warranty on remaining covered parts Efficiency Rating (AFUE): up to 83.9 Product Brochure Contact Us to Learn More Our team at Jett's Heating & Air Inc. in McHenry is happy to help you find the right gas fired water boiler for you, or help you maintain your existing boiler. Set up your appointment online, or by calling us at 815-459-4700.