Marine heating system Installation Instructions
© Webasto Global Comfort Solutions
®
5
3 Heating system selection
Criteria for heating system selection
• Boat length
• region where used,
• Season and
• Boat form
Simplified graphical representation
1. Select the boat length.
2. Go horizontally to the left to the line for the region.
3. Go vertically downwards to the line for the season when used.
4. Go horizontally to the right.
a) Water heater: Follow the boat type line vertically downwards in the lower triangle.
b) Air heater: Follow the boat type line vertically up in the upper right triangle.
More accurate capacity rating of the heat requirement:
calculate approx. 150 to 200 W heating capacity per m³ of heated area.
For extreme cold, calculate 250-400 W per m³.
Use the upper or lower guide value according to
• Operating area,
• Boat hull/superstructure insulation,
• Integration of a hot water boiler.
Recommendations:
Air heating for ships from 15 m: use two systems (better warm air distribution and
controllability, less noise and power consumption). Use separate connections for electricity,
exhaust gas, fuel supply, etc.
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