3100 sqFt的SFH， 2.5 t ， 功力有點小：

Rule of Thumb:

A common estimate is 1 ton of AC for every 400–600 square feet in a typical residential space. Using this:

Required Tons=Area (sqft)Square Feet per Ton\text{Required Tons} = \frac{\text{Area (sqft)}}{\text{Square Feet per Ton}}Required Tons=Square Feet per TonArea (sqft)?

For 3100 sqft:

• At 400 sqft/ton: $3100÷400=7.75$ tons

• At 600 sqft/ton: $3100÷600=5.17$ tons

Typical Range:

You'd need between 5 to 8 tons of air conditioning for a 3100-square-foot area, depending on the factors mentioned above.

3100 sqFt的SFH， 最小 也 的  4  T  AC