The gas furnace is such a common type of home heating system that there are few objections to having one installed. Yes, people sometimes have concerns about using natural gas in a house, but if a furnace receives annual professional maintenance and proper care, it rarely poses any safety hazards.
But there is one negative often raised about the gas furnace, which is that it dries out the air in a house. Because dry air makes the inside of a house feel colder than it is and can also lead to health problems, this isn’t a situation anyone wants. But is there any truth to this?