Shoppers browse appliances at the JC Penney store inside the Roosevelt Field Mall in Garden City, New York.

J.C. Penney is taking its head-to-head battle with Sears one stop further.

Roughly one year after making its return to the appliance category, Penney's will begin testing a series of home installation initiatives that include heating, ventilation and air conditioning (HVAC). Meanwhile, it will expand its appliance showrooms to another 100 locations, up from its current 500. It will also add new brands to the mix.