Since I live in the northern part of the country, I spend the majority of the year with the air heater running.
It is not unusual to work the furnace for eight hours straight.
It is not necessary to have almost any cooling system. For most of my entire life, I have gotten along only just fine without air conditioning. I enjoy opening the windows and letting in the outside air. I don’t really mind the warmth, and if the house seemed uncomfortably sticky, I simply ran an electrical fan. When I started having severe troubles with allergies, my doctor recommended we have a central cooling system installed in my home. Having the windows open was allowing in several contaminants, such as pollen, dust particles, and exhaust fumes. This was aggravating my allergies, causing headaches, congestion, sneezing, itchy eyes, and sore throats. I felt so miserable that from time to time I didn’t get out of bed. Instead of taking strong doses of allergy medication, the doctor suggested that I take steps to improve my environment. Investing in a central cooling system has made a giant difference in my health along with comfort. I now keep the windows closed at all times. Although I miss the influx of outside air, I am happy to avoid pollutants, exterior noise, carbon dioxide, and odors. My house is just cleaner, and I feel my allergies have improved. I even slept more peacefully with the sound of the air conditioner plus the feel of the cool air circulating. Plus, the cooling unit has a multi stage filtration system which helps remove airborne particles.