We’ve Got Energy Efficient Furnaces to Keep Your Family Warm All Winter A furnace shouldn’t leave you hanging in the middle of our Carlsbad winters. In fact, at Banister's Heating & Air Conditioning Services, we believe you should have a furnace that is energy efficient, runs quietly and saves you money. Our variety of ENERGY STAR® qualified Lennox® gas and oil furnaces, which have reached or exceeded EPA guidelines for energy efficiency, will do just that. Our furnace series feature Lennox ingenuities like variable speed motors and PreciseComfort™ technology and work smarter, not harder, to provide consistent heat with more energy efficiency. Fewer temperature swings. Enhanced comfort. Reduced energy bills. Can’t get much better than that. Each of our energy efficient furnaces are a solid choice for your Carlsbad area home. They can enhance humidity control and air filtration, giving you improved indoor air quality. When you select a Lennox furnace from Banister's Heating & Air Conditioning Services, you can stay warm all season. Browse our energy efficient gas and oil furnaces to learn more. Gas Furnaces Oil Furnaces We’re trained and ready to help with any of your heating needs, whether it’s a furnace replacement or a furnace repair. Simply give Banister's Heating & Air Conditioning Services a call at 575-887-7777 or set up your appointment online to get started.