We’ve Got Energy Efficient Furnaces to Keep Your Family Warm All Winter A furnace shouldn’t conk out on you in the middle of our Saint Peters winters. In fact, at C-N-O Comfort Zone, we know you need a furnace that is energy efficient, works quietly and helps you save money. Our variety of ENERGY STAR® qualified Lennox® gas and oil furnaces, which have met or exceeded EPA guidelines for energy efficiency, will do just that. Our furnace series feature Lennox technologies like variable speed motors and PreciseComfort™ technology and work smarter, not harder, to generate consistent heat with increased energy efficiency. Fewer temperature swings. Better comfort. Reduced energy bills. Sounds pretty great to us. Each of our energy efficient furnaces are a solid choice for your Saint Peters area home. They can improve humidity control and air filtration, giving you improved indoor air quality. With a Lennox furnace from C-N-O Comfort Zone, you can stay comfortable all season. Browse our energy efficient gas and oil furnaces for more details. Gas Furnaces Oil Furnaces We’re experienced and willing to help with any of your heating needs, whether it’s a furnace replacement or a furnace repair. Simply give C-N-O Comfort Zone a call at 636-578-1777 or schedule an appointment online to get started.