 Now is the time to let Ferris Heating and Air Conditioning perform a maintenance check on your air conditioning unit, and right now you can receive up to $1,700 in rebates when you purchase a new Lenox system. Call Ferris Heating and Air Conditioning today at 918-333-0376 to schedule your appointment. Serving Bartlesville and surrounding areas for over 60 years, Ferris also gives free estimates.