I going to replace my current A/C unit which is 13.5K BTU but got to thinking...how does one calculate what size A/C unit one would need. My TT is a Artic Fox 4 season 22-GQ. Thanks,
Residential heat gain calculations are based on ACCA Manual J (Air Conditioning Contractors Association). As has been mentioned, the formulas are structure location and directional orientation specific. Perhaps you could pick a few of your favorite camp sites and find a simplified heat gain calculator online and run the calcs for each location?