Air conditioning systems should be serviced at least once a year. Furnaces need to be serviced every one to five years, depending on the type of furnace. Experts recommend having air conditioning systems inspected in the spring.
As of 2016, air conditioners cost between $99 and $1,500. Air conditioner pricing varies based on the retailer, type of air conditioner and the brand. Generally, window and wall air conditioners cost less than portable air conditioning units.
Air conditioner unit prices vary widely based on the type and BTU rating. As of 2015, prices at HomeDepot.com range from $115 for the least expensive window unit to $5,054 for a built-in unit with a heater (prices do not include installation).
A number of companies, including Filtrete, Honeywell, TrueBlue and Rheem, manufacturer furnace air filters. These filters comes in different sizes, so check that a new filter is compatible with the furnace before making a purchase.
Gas furnaces typically don't come with air conditioning functionality. However, combination systems with both gas heating and air conditioning capabilities are available and can often use the same HVAC components, reducing installation costs.
Standard fiberglass furnace filters should be changed once a month, and 3-inch high-efficiency furnace filters should be changed every three months. Washable furnace filters should be cleaned once a month.
As of 2015, replacement parts for forced-air furnaces are available for purchase from dedicated HVAC websites such as MyHVACParts.com and online or in-store from Sears PartsDirect. Specific forced-air furnace parts are also available from manufacturers such as Goodman.
Shoppers in need of a new air conditioner fan can purchase replacements at Dey Distributing, RepairClinic or Amazon.com, as of 2015. These three online retailers provide high-quality replacement parts for air conditioners, including fan motors and blades as well as full assemblies for many models.
RepairClinic and SupplyHouse.com sell replacement parts that work with central air conditioning systems, as of 2015. Both these online parts suppliers carry a wide selection of parts, and both also provide toll-free telephone ordering assistance during regular business hours.
The cost of replacing an air conditioner compressor ranges anywhere between $550 and $2,400 as of 2015. Factors such as the model of the air conditioning unit, the faulty components and the refrigerant used influence the cost of replacement.