Gas Furnaces. These furnaces vary in price and size depending on their suited purpose of a small home or larger home. Not only do they vary by size but they also vary .Initial Cost. Although the initial cost of a wood pellet stove is not techni.y part of the stove’s operating cost, it’s important to consider the up front cost .Before you sit down with an HVAC contractor to talk about how much does a new furnace cost, read up on what our pros think you need to know..Preston, CT . Tel. Fuel cost calculator brought to you by Jotul Energy King Furnaces. Energy King makes heavy duty wood coal warm .
Gas Furnaces $, to $,. Natural gas furnaces often cost a bit more than electric, and unless you re replacing an existing unit, they come with the added expense of putting in gas lines from the street and building extensive ductwork..