24000 BTU to kW
Updated
Convert 24,000 BTU/hr to 7.034 thermal kW with two-ton equipment context, EER input comparisons, 230 V planning, and FAQs.
Direct answer: 24,000 BTU/hr = 7.034 kW.
Quick converter
Kilowatts (thermal)
24,000 BTU/hr = 7,033.71 W of thermal capacity. Updates as you type.
24,000 BTU/hr equals 7.03370568 thermal kW, rounded to 7.034 kW. This is the familiar two-ton class used for a larger open-plan home, a small central system, or a substantial ductless split. The kW figure describes cooling delivered, while electrical input depends on EER, controls, fan power, and operating conditions.
Use 24,000 x 0.00029307107 = 7.03370568 kW, or 7,033.71 W thermal. With EER 11, electrical input is 24,000 / 11 = 2,181.82 W. At 230 V that is approximately 9.5 A, and eight hours at constant input is 2.18182 x 8 = 17.45 kWh; MCA/MOCP, not this estimate, sets the circuit requirements.
Worked example
- 1. Start
24,000 BTU/hr
- 2. Apply the formula
24,000 x 0.00029307107
- 3. Round the result
24,000 BTU/hr = 7.034 kW
Practical guidance
Open-plan and floor-area context
Two tons is a rough starting point for about 1,000–1,600 square feet in moderate conditions, often an open-plan house or a small apartment with several connected rooms. A high glass ratio, leaky envelope, hot roof, or many occupants can exceed that guide. A room-by-room load calculation decides the capacity and airflow.
What equipment normally uses 24K
The 24K class is common in 230 V ductless splits, small central air conditioners, and heat pumps. Window units exist at this output but are less common than at 12K or 18K and usually require a dedicated 230 V circuit. Match the indoor coil, outdoor unit, duct size, and airflow rather than mixing nominal tonnage across brands.
EER 9 through EER 13
The same 24K thermal rating would draw 2,667 W at EER 9, 2,182 W at EER 11, or 1,846 W at EER 13. That spread changes heat at the panel and daily cost even though the capacity remains 7.034 thermal kW. Seasonal SEER2 can reveal part-load behavior that a single EER number misses.
230 V and heat-pump operation
At 24,000 BTU/hr, 230 V is the normal expectation for split and central equipment; verify the nameplate before roughing in wiring. A heat pump can deliver useful winter heat, but its low-temperature output, defrost cycles, and auxiliary heater may differ greatly from cooling capacity. Estimated 9.5 A is for arithmetic context, never a substitute for MCA or MOCP.
Cost, staging, and humidity
An EER-11 unit running eight hours at full rated input uses 17.45 kWh. At an example $0.15/kWh tariff, that is about $2.62, before cycling and demand charges. A variable-speed two-ton system can reduce cycling, yet oversizing still hurts dehumidification in humid climates; load and latent capacity matter.
Common mistakes to avoid
- Reading 7.034 kW as electrical demand
- Picking 7.034 kW from floor area alone without a load calculation
- Using estimated amps to choose protection
- Ignoring duct losses and latent capacity
24000 BTU to kW 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
What is 24,000 BTU/hr in kW?
24,000 x 0.00029307107 = 7.03370568 thermal kW, rounded to 7.034 kW. It is cooling capacity, not the compressor's electrical draw.
Is 24,000 BTU/hr two tons?
Yes. 24,000 / 12,000 equals exactly 2 refrigeration tons. Certified capacity can vary at different outdoor conditions.
How much input does EER 11 imply?
24,000 / 11 = 2,181.82 W, about 2.182 electrical kW. Compare this with the product's rated input and fan power before estimating a bill.
What current is 2,182 W at 230 V?
The simple running estimate is 2,182 / 230 = 9.5 A. Use MCA, MOCP, startup characteristics, and code for the actual branch circuit.
How many kWh for an eight-hour example?
2.18182 kW multiplied by eight hours is about 17.45 kWh at continuous rated input. Thermostat cycling usually changes the real total.
What floor area can two tons cover?
Roughly 1,000–1,600 square feet is a moderate-condition guide for an average open plan. A load calculation decides after climate, windows, insulation, and occupancy are included.
Are 24K window units usually 115 V?
Most 24K split and central products are 230 V; 115 V availability is much less typical at this size. Check the exact listing before planning a receptacle.
Would two 12K units be better than one 24K?
Separate 12K systems can improve zoning and redundancy, but they add equipment and controls. The best arrangement follows room loads, not a simple preference for more units.
More size guides
Continue with the BTU to kW converter, compare BTU/hr to tons of refrigeration, or check the BTU to horsepower converter.