I live in the northern space of the country, where the weather is extreme just about all year round. In the summer season, the temperature often climbs into the nineties, with harshly high humidity levels. During the Winter season, the two of us live with sub zero temperatures, vicious wind chill, and tons of snow. The Springtime and fall are regularly frigid and damp, so the two of us usually need to run the oil furnace. With either the heating or cooling system running for most of the year, there’s no choice of opening the windows. To conserve energy, I’ve tightened up the cabin as much as possible. I’ve replaced windows, added insulation, caulked and weatherstripped. I’ve worked actually hard to eliminate every crack, hole or leak which might allow our heated or cooled air to escape. This has made a big difference in our yearly yearly bills and greatly improved the comfort of our home, unfortunately this traps all sorts of contaminants in the house. There’s no influx of fresh air, and no choice for dust, pollen, dander, or unpleasant smells to escape. There’s concerns with air quality, which can lead to health concerns. After consulting with a local Heating, Ventilation, and A/C business, I invested in a heat salvage ventilation system. The ventilator brings fresh, outside air into the cabin and extracts the stale, stuffy air. Plus, it uses the outgoing air to preheat the incoming air in the Winter season. The ventilator also helps to combat excess humidity while I was in the summer season months. Installing the ventilation system has saved me quite a bit of money in yearly bills, while also improving the health, cleanliness and overall enjoyment of our home.