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.
Electric furnaces are cheaper than the average gas furnace. Electric furnaces begin at $1,000, while gas furnaces are listed at $2,000. The high-end electric furnace goes at around $3,000, while the high-end gas furnaces go up to $10,000.