Home Page AC Air Conditioning (Self Contained and Split System) Thermostat and Controllers A Brief description on How the System Works  
Marine Air Conditioning Supplies 

SeaMach™

Sizing the Air Conditioning

 

    Room

"K" Factor
 (English)

"K" Factor
 (Metric)

Below deck with conditioned area above and on three sides

7

250

Below deck with conditioned area above and on two sides

12

425

Below decks

14

495

Galley

17

600

Above decks with large window areas

19

670

Above decks with large window ares and heavy traffic

21

740

Bridge or pilot house, all windows and heavy traffic

24

850



Calculation of BTU load:

  • Determine cubic feet or meters by multiplying height by width by lenght of area to be cooled
  • Determine BTUs by multiplying cubic feet or cubic meters by the "K" factor.

 

English Example: Room is below deck with air conditioned areas above and on three sides. Room dimensions are 7ft high by 10ft wide by 15ft long.

  1. 1,050ftᵌ (7x10x15)
  2. 1050ftᵌ x 7 (K factor)  7,350 BTU

Based upon a load of 7,350 BTUH, a SP10 or SC10 would be required.

 

Metric Example: Room is below deck with air conditioned areas above and on three sides. Room dimensions are 213cm high by 305cm wide by 457cm long.

  1. 29.69mᵌ (213x305x457)
  2. 29.69mᵌ x 250 (K factor) 7,420 BTU

Based upon a load of 7,420 BTUH, a SP10 or SC10 would be required.