Air Conditioner Size Calculator — 公式
## How to Size an Air Conditioner
The general rule is 20 BTU per square foot. Adjust for sun exposure and occupancy.
### Formula
**Base BTU = Room Sq Ft x 20**
**Adjustments**: +600 BTU per person over 2, +10% for sunny rooms, -10% for shaded.
1 ton = 12,000 BTU.
The general rule is 20 BTU per square foot. Adjust for sun exposure and occupancy.
### Formula
**Base BTU = Room Sq Ft x 20**
**Adjustments**: +600 BTU per person over 2, +10% for sunny rooms, -10% for shaded.
1 ton = 12,000 BTU.
计算示例
350 sq ft room, average sun, 2 occupants.
- Base BTU = 350 x 20 = 7,000
- Occupant adjustment = 0 (2 or fewer)
- Sun factor = 1.0 (average)
- Recommended BTU = 7,000 x 1.0 = 7,000 BTU
- In tons = 7,000 / 12,000 = 0.58 tons