Your current AC unit is more than a decade old. It has been acting up. You know that replacing it could save you money in the long run. As you are looking into new systems, you keep reading about sizing the AC unit. What does this mean?
Size Determines Efficiency in Operations
Do not try to save money by buying a system that is too small for your home. In the heat of the summer, it will likely fail to keep up with the demand for cooling air. As a result, its mechanism runs almost consistently, which leads to higher energy use. Therefore, you end up paying more than you would have if you had bought a bigger – but more expensive – system.
On the other side of the equation is the oversize system. Bigger is not better when buying your next air conditioning unit. Rather, it will reach the demanded cooling temperature so quickly that it short-cycles repeatedly. As a result, the machine continually turns on and off in short bursts, which puts unnecessary strain on the internal machinery. You may end up with more repair bills.
The Goldilocks Approach to Sizing Your Air Conditioner
In air conditioning, a unit has to be just right to save you money on operating costs and repairs. Start with the square footage of the home. Typically – and there are exceptions – a good-quality air conditioner expends 20 Btu per square foot.
Next, factor in the windows in the rooms. When you have south-facing windows, you deal with more sun-generated heat than when you have north-facing windows. Moreover, factor in the presence of large shade trees. Finally, add in the number of people who live in the home. Homes with high occupancy numbers require larger air conditioners than those with just one or two occupants.
Discuss Your Plans with an Expert in the Field
Wayne Price Heating & Air Conditioning specialists routinely work with homeowners who plan to upgrade their air conditioners. Now that you know roughly the size of the unit you may need, fine-tune the details with the help of a professional. Contact us today to schedule an appointment.