High Efficiency

High efficiency furnaces can take combustion air from inside the house. Providing the room is large enough and the home is not hermetically sealed (or too tight). New construction home here in the Chicagoland area require blower door tests to ensure the home is air tight, but not too air tight. We have to have […]

When I started in this profession, every furnace was a natural draft furnace. We used mirrors and a flashlight to look for holes and cracks in the heat exchangers. Nowadays we cannot see inside the heat exchangers because of their designs. This is why we use the equipment that we use.