Mini-Split Ductless Heat Pumps from WM J Kraus & Son Help you Manage Warm Summers and Cold Winters in Keokuk Whether you are looking for boost in home comfort in one room, or up to four different rooms, WM J Kraus & Son in Keokuk has a mini-split heat pump that will meet your requirements. Our mini-split heat pumps from Lennox® provide very efficient and supremely quiet performance year after year. Their ductless design eliminates the possibility of difficult installation problems or high-priced modifications down the road. Plus, their efficient, all-in-one heating and cooling system keeps your home comfortable season after season. Explore the models we offer. When you’re looking for service for your mini-split heat pump or need a new unit, WM J Kraus & Son in Keokuk is ready to serve you. Call us at 319-229-2318 or make 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.