24000 BTU to Tons
Updated
Convert 24,000 BTU/hr to two refrigeration tons with open-plan sizing context, EER power arithmetic, circuit guidance, and FAQs.
Direct answer: 24,000 BTU/hr = 2 tons.
Quick converter
Tons of refrigeration
24,000 BTU/hr = 7,033.71 W of thermal capacity. Updates as you type.
24,000 BTU/hr is exactly 2 refrigeration tons. Two tons is a familiar rating for a small central air conditioner, a large ductless split, or a heat pump serving an open plan. It tells you the rate of heat removal; it does not mean two electrical kilowatts, two motor horsepower, or any fixed utility cost.
The tonnage calculation is 24,000 / 12,000 = 2. Converting the capacity gives 7.03370568 thermal kW. At EER 11, 24,000 / 11 = 2,181.82 W, about 9.5 A at 230 V, and 17.45 kWh over eight steady hours; use the equipment label's MCA/MOCP for wiring and breakers.
Worked example
- 1. Start
24,000 BTU/hr
- 2. Apply the formula
24,000 / 12,000
- 3. Round the result
24,000 BTU/hr = 2 tons
Practical guidance
A realistic two-ton layout
A rough 1,000–1,600 square foot range can describe an average open-plan home in moderate weather. That is a planning guide rather than a promise: a shaded insulated bungalow and a glassy top-floor apartment have different loads. A load calculation decides whether two tons is adequate without relying on area alone.
Central, ductless, and window choices
At 24K, 230 V central and ductless equipment is common, with matched coils and airflow sized for the system. A window unit at this capacity is possible but less typical and can need a substantial dedicated circuit. Compare sound, duct losses, filtration, and service access alongside the nominal tonnage.
Efficiency is separate from tonnage
An EER-9 two-ton unit needs 2,667 W, EER 11 needs 2,182 W, and EER 13 needs 1,846 W. Each still has a 24,000 BTU/hr or 2-ton label under its rating condition, so electrical planning must use input data. SEER2, fan watts, and part-load performance give a better seasonal picture.
Voltage, heat, and protection
Two-ton split systems are normally 230 V, unlike many smaller plug-in room units. Two-ton heat pumps can cover heating as well, but cold-weather capacity and supplemental heat need their own check. The 9.5 A arithmetic is not an allowable circuit rating; MCA and MOCP on the nameplate govern.
Why humidity and operating cost matter
A continuously oversized two-ton unit can cool the thermostat quickly and leave a damp room. If it did run at EER-11 input for eight hours, 17.45 kWh at $0.15/kWh would be about $2.62. Correct staging, variable capacity, and good return airflow can improve comfort more than simply selecting a larger nominal tonnage.
Common mistakes to avoid
- Treating two tons as two electrical kW
- Choosing two tons from a square-foot rule instead of a Manual J load
- Using running current to size a breaker
- Ignoring coil, duct, and moisture performance
24000 BTU to Tons chart
| BTU/hr | kW | Tons | HP |
|---|---|---|---|
| 9,000 | 2.638 | 0.75 | 3.537 |
| 12,000 | 3.517 | 1 | 4.716 |
| 18,000 | 5.275 | 1.5 | 7.074 |
| 24,000 | 7.034 | 2 | 9.432 |
| 30,000 | 8.792 | 2.5 | 11.79 |
| 36,000 | 10.551 | 3 | 14.149 |
| 48,000 | 14.067 | 4 | 18.865 |
| 60,000 | 17.584 | 5 | 23.581 |
Common questions
How many tons is 24,000 BTU/hr?
It is exactly 2 refrigeration tons because 24,000 divided by 12,000 equals 2. Tonnage is a cooling-capacity convention.
What is two tons in thermal kW?
Two tons equals 7.03370568 thermal kW, normally rounded to 7.034 kW. Electrical input is determined separately from EER or the nameplate.
What does EER 11 mean here?
It implies 24,000 / 11 = 2,181.82 W, or about 2.182 electrical kW, at the rating condition. Fan and control power may also appear in the published input.
What is the approximate 230 V current?
2,182 W divided by 230 V gives about 9.5 A. Actual circuit design follows MCA, MOCP, starting behavior, and local code.
How much energy is eight hours?
At continuous EER-11 input, 2.18182 x 8 equals approximately 17.45 kWh. Weather and cycling change what a meter records.
What layout suits two tons?
A roughly 1,000–1,600 square foot open plan in moderate conditions is a rough guide. Windows, insulation, climate, internal heat, and ducts still mean a load calculation decides.
Are two-ton units normally 230 V?
Yes for most split, central, and heat-pump products. Confirm voltage and overcurrent requirements on the exact nameplate before installation.
Could a two-ton unit be too large for a small house?
Yes. Oversizing can cause short cycling and poor humidity removal, especially in a damp climate. A variable-capacity model or smaller staged system may fit the calculated load better.
More size guides
Continue with the BTU to kW converter, compare BTU/hr to tons of refrigeration, or check the BTU to horsepower converter.