When this method is used, a fixed asset is depreciated by the same amount each year. When using the straight-line method, you must specify one of the following options in the FA depreciation book: 1  The depreciation period (years or months) or a depreciation ending date.
Assuming the house has wood siding and there's an electrical line already in the bathroom, an electrician will charge $268 to install an exhaust fan, which includes the labor and material. You can buy the fan for $90 and install it, saving 66 percent. DIY Hassle Alert.
1 Many kitchen exhaust fans are part of a range hood, which can cost $30-$4,500, depending on size, type and cfm; installation adds another $250-$1,500, depending on whether the project is simply connecting and hanging the range hood, or if new metal ductwork must be installed to exhaust the air outdoors.ypical costs: 1  A bathroom fan typically costs $15-$50 for a basic 50-70 cfm model with no extra features and a high noise level (3.0 to 8.0 sones). 2  For example, the Broan Model 671 Ceiling and Wall Mount Bathroom Fan with 70 cfm and 6.0 sones costs $25-$53.