The weather in South Bend, IN and surrounding areas brings extremes at all times of year. With temperatures dropping into the teens or even sub-zero levels, winter seems to last forever. As soon as the record-breaking accumulation of snow melts, the heat and humidity of summer sets in. There is rarely a time when neither heating nor cooling is required and the cost of keeping a comfortable home adds up quickly. Very often, indoor temperature control is responsible for 50% of household energy usage.