Calgary Home Comfort started in 1997 providing plumbing services and installing HOYME dampers, this piece of equipment is known for keeping your home comfortable in the winter while reducing outside air to the combustion pot, and outside air makeup at the same time can save energy in your home. By installing both the Combustion damper and the fresh air damper with the Mid efficient furnaces at that time. We still offer the Hoyme products to this day as an energy efficiency option. See our above Hoyme dampers in the energy savings products.