Mini split heat pump systems do not consume excessive electricity compared to conventional HVAC systems handling the same heating or cooling loads. These energy-efficient ductless systems provide both heating and cooling while using significantly less electricity than traditional forced-air systems. The Trade Table will walk you through.
The average mini split uses about 600 watts of electricity. However, usage can vary:
✅ Cooling mode: 545 to 1,000 watts
✅ Heating mode: 1,000 to 7,500 watts
Electricity is billed in kilowatt-hours (kWh), where 1 kWh equals 1,000 watts used per hour. To calculate:
600 watts = 0.6 kWh per hour
14.4 kWh per day (if running continuously)
⚠️ Note: Mini splits do not run at full power all day, so your actual consumption will be lower than the max estimate.
Several factors impact how much energy a mini-split consumes:
A professional load calculation ensures you select the right-sized unit.
Too small? It will work overtime, wasting energy.
Too large? It will cycle on and off too frequently, leading to inefficiency.
| System Type | Average kWh per Hour |
|---|---|
| Mini Split | 0.6 kWh |
| Central AC | 5 – 6 kWh |
| Window AC | 1 – 1.5 kWh |
| Baseboard Heat | 3 – 4 kWh |
| Furnace/Oil Boiler | 5 – 10 kWh |
Key Takeaway: Mini splits consume far less electricity than central AC, window units, or baseboard heaters—saving you money.
To get the most out of your mini split, follow these energy-saving tips:
Schedule an annual tune-up to maintain peak efficiency.
A technician can clean the coils, check refrigerant levels, and optimize airflow.
Check & clean filters every month to prevent airflow blockages.
Clogged filters = higher energy use and reduced performance.
Ensure the outdoor unit has 2-3 feet of clearance.
Avoid blocking indoor air handlers with furniture or curtains.
Set schedules to run the system only when needed, avoiding wasted energy.
Example: Turn it off when you’re away and pre-cool before you return home.
Protecting it from direct sunlight reduces workload, improving efficiency.
Mini splits adjust speeds instead of turning on/off, making them more efficient than traditional HVAC.
500 – 1,500 watts per hour, depending on size and efficiency.
4 – 12 kWh per day (actual usage varies based on temperature settings and climate).
No! Ductless systems use far less energy than central AC, baseboard heating, or window units.
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