$49

$59

$69

$79

24-hour rental rates

General Sizing Guide (Quick Reference)

Here’s a general chart based on square footage:

Room Size (sq ft)

100–150 5,000 BTU

150–250 6,000 BTU

250–300 7,000 BTU

300–350 8,000 BTU

350–400 9,000 BTU

400–450 10,000 BTU

450–550 12,000 BTU

550–700 14,000 BTU

Factors That Affect Portable A/C Sizing

Sunlight Exposure

Bright, sunny rooms need more cooling power.
Add 10% BTUs for sun-soaked areas.

Number of Occupants

More people = more body heat.
Add 600 BTUs per additional person after two.

Room Usage

Kitchens and server rooms need extra cooling.
Add 4,000 BTUs for kitchen use.

Ceiling Height

Standard calculations assume 8 ft ceilings.
For taller ceilings, adjust accordingly (+10–20%).

Example Calculation

Room: 20 ft × 15 ft = 300 sq ft
Room Type: Kitchen
Occupants: 3 people
Sunlight: High

Base BTU for 300 sq ft: 7,000
Kitchen adjustment: +4,000
Extra person: +600
High sunlight: +700 (10%)

Total Needed: 12,300 BTU
Choose a 12,000 BTU portable A/C unit

$99

$109

$119

$129

72-hour rental rates