Mini-Split Ductless Heat Pumps from Oak Grove Heating & Air Conditioning Help you Manage Warm Summers and Cold Winters in Lamar County Whether you want comfort boost in one room, two rooms, three rooms, or even four rooms, Oak Grove Heating & Air Conditioning in Hattiesburg has a mini-split heat pump to accommodate your needs. Our mini-split heat pumps from Lennox® deliver very efficient and super quiet performance year after year. Their ductless design gets rid of the possibility of complicated installation problems or costly modifications later on. Plus, their efficient, all-in-one heating and cooling system keeps your home comfortable season after season. Find out more about our mini-split heat pump offering. When you’re looking for service for your mini-split heat pump or need a new unit, Oak Grove Heating & Air Conditioning in Hattiesburg is ready to serve you. Call us at 601-292-9763 or set up an appointment with us using our online scheduler. * SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner or heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment. ** HSPF, or Heating Seasonal Performance Factor, measures the heating efficiency of your heat pump. A higher HSPF rating means greater energy efficiency, more savings and is better for the environment.