Use the calculator below to determine your system sizing requirements

Please note, many factors will go into determining the correct size for your system. The calculator below is meant as a starting point and to give a basic idea of the size of system for your situation. Please call our sales team to get more detailed information.

* required field

Pounds of fish you can pack (figure 50# of salmon per cubic feet of tank space)*
Cubic Feet of Hold
Temperature Change

Average Delta T for Alaska is 21°F (55° to 34°)
Starting Temperature*
Ending Temperature*
Temperature Change
BTU/hour
Temp change * cubic feet of hold
Choose multiplier below - choose 1.2 for well insulated boat and 1.4 for non insulated*
Total Heat Load in BTU/hour
Refrigeration Tonnage Calculation
Hours required to bring to temp
Tons of refrigeration required to do work in 1 hour
Required Tonnage (or HP)
OR

to determine hours required based on current system tonnage (or HP)
Tonnage (or HP) of current system
Required hours based on current system tonnage (or HP)
Should be Empty:

RSW Calculator

Use the calculator below to determine your system sizing requirements

Temperature Change

Refrigeration Tonnage Calculation

OR

Integrated Marine Systems, Inc.