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.
The average gas furnace with a 90% AFUE (thatâs the rating that determines just how energy-efficient your furnace is) will cost you about $2,500 (and, of course, that doesnât include installation costs. Count on spending about $2,000 to have your new furnace installed).If you opt for a multi-stage gas furnace, youâll get even more energy efficiency, but youâll also wind up spending hundreds of dollars more on it!Compare that to the average oil furnace â which will cost you about $2,000. Sure, thatâs a big difference, but youâll also get a lower AFUE.Electric furnaces are also an option, but theyâre the most expensive option. On the bright side, though, theyâll also last the longest.ompare that to the average oil furnace â which will cost you about $2,000. Sure, thatâs a big difference, but youâll also get a lower AFUE. Electric furnaces are also an option, but theyâre the most expensive option. On the bright side, though, theyâll also last the longest.