Ive heard geothermal systems blow cold air in Winter?
Your Grandfather’s old fossil fuel oil or gas furnace heated the air that passed through it somewhere between 60 and 100°F every pass of air. It literally “fried” the moisture out of it. It also delivered this air with curtain shaking, cat chasing high velocities. With it’s 1.5 to 2 air changes per hour you were either too cold or too hot, with very uneven temperatures throughout the house. Geothermal systems are designed to stringent ACCA standards for 4 air changes per hour and only 20 – 25°F temperature rise every pass of air. With higher volume, lower velocities (cat friendly) you are comfortable, and don’t know how you got there. So, geothermal systems deliver warm air, not hot air. If the room temperature is 70°F the average delivered air temperature should be 90 – 95°F. The bottom line is it will heat your home for a lot less than any other automatic method. Of course free wood can do it for less, and wood is also renewable.
