Efficiency, Durability and Dependability: the Merit® Series Air Conditioners. Lennox has a rich history leading the heating and cooling industry with advanced technologies, durability, reliability and efficiency. The Merit® Series offers the same quality that you have come to expect from Hillcrest Air Conditioning & Plumbing over the years and is the best option when air conditioner replacement is needed in Bakersfield. If you take a look at the options the Merit® Series offers and you still have questions, let us know. The experts at Hillcrest Air Conditioning & Plumbing are here to help, so give us a shout at 661-437-3499 or set up an appointment with us through our online scheduler. * SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner and heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment.