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A one-ton air conditioner is rated at 12,000 BTU per hour, and a two-ton system is rated at 24,000 BTU per hour.These smaller systems bridge the gap between window air conditioner units and central air systems.Warm air is treated and cooled, then pushed back into the home through a duct system, which is often shared with your heating system for central air units.(Hence the common acronym "HVAC," or "heating, ventilation and air conditioning.") You can purchase window unit or ductless systems, but if you're looking for central air conditioning, you have two different options: a split system or a packaged system.And if you already have a ducted heating system installed, this option may suit you well and reduce cost of installation in the long run.You can also choose between a single-stage and two-stage air conditioning system.Installing smart thermostats that regulate air conditioning and cooling cycles help make your new HVAC system more energy efficient.
There are three main elements to central air: In a split system, the compressor and condenser are combined in a single unit located outside the home's HVAC system.For example, Cool Tech Mechanical in Arlington, Texas, charges: You can purchase an AC through your HVAC technician — which means you may be covered by their warranty.Purchasing your own unit may save you a bit of money on total air conditioning costs, but can be much less convenient.(However, keep in mind that a high BTU AC won't cool smaller spaces faster — the system will just cycle on and off more, wasting energy.) A more efficient AC may cost more, too.Air conditioners are given seasonal energy efficiency ratio ratings — or SEER ratings.