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.
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.espite its high efficiency, electric heating often costs more to operate than a traditional gas furnace. When comparing a gas furnace to an electric heater, consider not only the upfront and operating costs of each option, but also how these systems impact the environment.