The worksheet assumes that youâll need to replace about 80 percent of your pre-retirement income. Social Security retirement benefits should replace about 40 percent of an average wage earnerâs income after retiring. This leaves approximately 40 percent to be replaced by retirement savings. Keep in mind, this is an estimate and you may need more or less depending on your individual circumstances.
Equipment Costs. The average price for a new gas furnace ranges from around $2,300 to $3,000 depending on manufacturer according to a November 2012 article by Consumer Reports. Qualitysmith.com estimates the cost of a new electric furnace at $1,000 to $1,500 as of December 2012.lectric space heaters all have AFUE ratings of 100 percent. Assuming an electric heater with 100 percent efficiency, homeowners should expect to pay roughly $34.32 per million BTUs of heat. Natural gas is generally sold in therms, where one therm is equal to 100,000 BTUs.
While we focus primarily on natural gas, most can be converted to a propane gas furnacegas for a very small fee. In most cases, it involves replacing the gas valve, the burners, jets, or a combination of the parts. Depending on your furnace, the kits cost in the $25 â $100 range.e called for repair and a new furnace heat exchanger (looked like cottage cheese) was going to cost more than $1500 installed, and we had to wait 4 days to get the parts in stock. For $900 more, they put in a new Goodman gas furnace the same day.