Looking at winter heating costs – according to www.choice.com.au, a reverse cycle air-conditioner is the most economical electrical heating option for your home. In an experiment over a 3 month period, they determined that a convection electric heater cost almost twice as much to run ($296 vs $163). Reverse-cycle air-conditioners do have a higher upfront cost, but over time, they are a less expensive heating solution and will save money compared to other options. Plus, they will keep you cool in summer as an added bonus!