I resent spending a ton of money on energy bills every month. Because of living in an area with severe weather, heating and cooling is just about a year round requirement. I try to be conservative with thermostat settings and yet heating and cooling is responsible for about fifty percent of my utility expenses. To trim costs, I’ve taken a whole bunch of energy saving measures. I’ve upgraded insulation levels, replaced windows, caulked and weatherproofed. I’ve eliminated leaks and tightened up the thermal envelope. I noticed a significant improvement in the operation of the furnace and air conditioner, but suddenly had problems with air quality. The house started to feel musty and dry, and there was an increase in the level of dust and other allergens floating in the air. When I mentioned my concerns to my regular HVAC contractor, he recommended the installation of a ventilation system. He said that I’d eliminated the necessary influx of fresh air. Because of this, the pollutants were trapped inside and getting circulated continuously by the heating and cooling system. The ventilator is a lot like having an open window, but without the energy waste. It brings fresh air into the house to replace the stale air. It uses the outgoing, stale air to preheat the fresh air, which lessens demand on the furnace. During the summer, the ventilator helps to get rid of excessive humidity and minimizes the workload of the air conditioner. Investing in the ventilation system has trimmed my utility costs far more than all of my energy saving attempts. Plus, the home stays cleaner, smells better and even feels more comfortable. The ventilation system runs 24/7, all year round, but requires very little maintenance.