Because of the serious weather in the area I live, there is rarely an occasion to open the windows plus allow in fresh air. It is more often than not necessary to rely on either a heating or cooling plan just about year round. To avoid unnecessarily high energy bills, I’ve gone to good lengths to tightly seal my home. I’ve spent a small fortune to replace all of the original windows with Energy Star rated windows. I’ve caulked around the windows, weather-stripped all of the doors, plus installed ceiling fans. I hired a licensed HVAC contractor to improve the insulations in the walls, ceilings, crawl spaces, plus I even had him install an attic fan. I’ve enrolled in an HVAC maintenance plan, which includes more than 2 professional repair calls per year. A licensed specialist shows up in the fall plus the spring to clean, tune, plus inspect the heater plus air conditioner. He removes the buildup of contaminants within the inner entirely workings, which could block airflow, cause longer running times, plus result in higher energy bills. All of my efforts help to keep my monthly costs as low as possible. However, I’ve also eliminated ventilation plus trapped all sorts of pollutants inside the house. Things like dust, dander, fumes, bacteria plus viruses simply get circulated for months at a time then get breathed by my family, and the poor air condition causes a serious health concern for my family and myself. To combat this problem, I’ve wisely invested in a heat recovery ventilation system. The ventilator is a lot like opening a window with none of the downsides, like letting energy go to waste, because it brings in fresh outside air. The ventilator entirely reduces the workload of the oil furnace by using the outgoing stale air to warm up the incoming air. In the warm season, it helps a lot to combat excess humidity. The ventilator has helped to lower my annual costs while improving the health, cleanliness plus enjoyment of my home.