How much does a 60,000-BTU gas furnace cost in a retail environment?

Depending on the retailer and the efficiency of the product, a 60,000-BTU gas furnace can cost anywhere from around $600 to $1,400 as of 2015. An 80 percent efficiency gas furnace costs $618 from Sears and a 95.5 percent efficiency multi-positional gas furnace from The Home Depot costs $1,399.

Choosing the more expensive Winchester gas furnace with an efficiency of 95.5 percent costs more upfront, but it has a lower operating cost over its lifetime because it is more efficient than the 80 percent gas furnace. Reviews for the Winchester gas furnace from The Home Depot are available on the retailers website.