Summer’s heat can be uncomfortable and treacherous without air conditioning. New central air conditioning units are more capable than units from years ago. Home owners should study the various kinds of central air conditioners before making such a purchase.
A central air conditioning unit operates by pulling hot, muggy air into the return duct work of the house, chilling the air, removing the moisture and then sending it back through the ducts. The result is cooler air. Central air conditioning elements can be divided into two sections. The condenser and compressor unit is placed outside, and the inside evaporator unit typically is supported on the furnace or an air handler. Alternatively, units can be designed in one piece where the two parts are placed in one outside unit.
Existing duct work with forced air can be used. If not, the duct work will have to be put into the crawl space, basement or attic increasing the cost of installation.
Another option is ductless central air conditioning, which is a mini-split system. This operates by utilizing an outside compressor that serves individual units containing an evaporator and fan. These units are put on the upper section of the exterior wall of a room. They cost more but do not require duct work. These units do obstruct windows, are silent and can be used to produce heat.
The following items, including size and efficiency, must be considered when selecting a central air conditioner.
The unit size should match the dimensions of the house. A unit that is too large will leave the house chilly and clammy. On the other hand, if the unit is not adequate, the unit cannot sustain itself and may ice up. The issues when measuring the size of the unit should be the house size, the number and condition of windows and the duration of sunlight and shade. This is the cooling load.
The current lower efficiency units compare to the high-efficiency units from years ago. Home owners can save up to 50% in the cost of cooling the house by replacing an older unit. The central units have a Seasonal Energy Efficiency rate that allows customers to determine the efficiency of the unit. The higher the rate indicates an efficient unit. The standard rating is 13.
An air conditioner with a filter with a high Minimum Efficient Value will help people with allergies or asthma. The rating standard is 8.
A scroll compressor will reduce noise.
The average cost of a central air conditioner can range from $4,000 to $7,000 based partially on house size and other construction variants. The cost can be from $8,000 to $10,000 when adding ducts to the house.
The process of selecting an air conditioning unit is time-consuming and detailed.
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