The Air Heat Exchanger in direct-combustion furnaces.A furnace is a device used for heating and the term furnace on its own is generally used to describe household heating systems based on a central furnace, typical in many residences, are not…
The Air Heat Exchanger in direct-combustion furnaces.A furnace is a device used for heating and the term furnace on its own is generally used to describe household heating systems based on a central furnace, typical in many residences, are not…