WMA is better than SMA because of the ability to vary the weights! Time Series: Exponential Smoothing (ES) Main idea: The prediction of the future depends mostly on the most recent observation, and on the error for the latest forecast.
New Furnace Costs. A new furnace cost roughly $3,800 and most homeowners pay between $3,250 and $4,420 to install a new furnace. The lowest price that a homeowner might pay is $1,500, while the maximum price a homeowner has reported paying for a furnace replacement or installation was $8,000.
Gas furnaces range from $1,700 to $6,000, as of August 2011. As with all furnaces, the bigger your home, the more heating capacity you will need, and the more the furnace will cost. Gas furnace prices are based on the annual fuel utilization efficiency, or AFUE, rating and the British thermal unit output.rices are based on the cubic feet per minute of heat that the furnace generates. An electric furnace that costs $600 might have a CFM of 800, meaning that it is capable of heating 800 cubic feet of space per minute, while an electric furnace that costs $1,500 might have a CFM of 2,000.