How much a furnace should cost. Average costs and comments from CostHelper’s team of professional journalists and community of users. Replacing a gas furnace can cost.The cost to Install a Gas Furnace starts at $, $, per furnace, but varies significantly with common options. Get real costs for your SPECIFIC project .Note This article is only talking about gas propane furnace. If you are lo.ng for oil furnace or electric furnace, you can read our Oil Furnace Buying.Gas Furnace Guide has HVAC Professional and Consumer Reviews of Home Furnaces. We Offer Furnace Buying Guides Information, as well as Owner Submitted Prices and .
The average price for a standard AFUE natural gas furnace is around $,.. Typi.y, unit costs for electric furnaces are the least expensive, followed by gas and then oil furnaces. Check out the following chart for a better idea of furnace prices based on your energy source. It compares the average prices for a standard efficiency and a high efficiency, namend furnace that would .