
Webasto S20 – BlueCool S Series 230V 20,000 BTU Marine Air Conditioner
The Webasto S20 provides 20,000 BTU marine air conditioning through 230V power for onboard climate control across vessel interiors.
- 20,000 BTU output handles larger cabins.
- 230V supply matches listed electrical systems.
- Marine air conditioner supports interior cooling.
- BlueCool S Series identifies the platform.
- Capacity guides vessel system selection.
Master staterooms and grand salons often need balanced cooling and heating from one self-contained marine system. The Webasto BlueCool S20 provides 20,000 BTU/h of cooling and 20,000 BTU/h of reverse-cycle heating at 230V. Its 5.86 kW cooling capacity and application guidance for spaces up to 1,000 cubic feet suit expansive yacht interior layouts.
Who This Unit Is Not Ideal For
This model is not suitable for 115V-only systems, small cabins, or applications where 20,000 BTU/h exceeds the required cooling capacity. Its size, weight, seawater flow, and electrical requirements should be reviewed against the available installation space.
Warranty and Product Summary
The Webasto BlueCool S20 includes a 2-year factory warranty. Manufactured by Webasto in Germany, it provides 230V cooling and reverse-cycle heating with 470 CFM airflow for compatible larger yacht interiors.
Product Specifications
Product Specifications
| Brand | Webasto |
|---|---|
| Exact Model Code / SKU | BlueCool S20 (230V Variant) |
| Country of Origin | Germany |
| System Architecture | Self-Contained Marine A/C System |
| Cooling Capacity - BTU/h | 20,000 BTU/h |
| Cooling Capacity - kW/Watts | 5.86 kW |
| Heating Capacity - BTU/h | 20,000 BTU/h |
| Reverse Cycle Heating Function | Yes |
| Electrical Voltage | 230V |
| Alternating Current Frequency | 50/60 Hz |
| Electrical Phase | Single Phase |
| Full Load Amps - FLA Cooling | 6.5 A |
| Full Load Amps - FLA Heating | 7.4 A |
| Locked Rotor Amps - LRA | 34 A |
| Max Circuit Breaker Size | 25 A |
| Refrigerant Type | R-410A |
| Compressor Type | Hermetic Scroll / Heavy-Duty Rotary |
| Seawater Water Flow Rate | 5.83 GPM (350 GPH) |
| Seawater Inlet Pipe Size | 5/8 inch (16 mm) |
| Seawater Outlet Pipe Size | 5/8 inch (16 mm) |
| Evaporator Airflow Capacity | 470 CFM (800 m³/h) |
| Duct Discharge Connection Diameter | 6 inches (152 mm) |
| Condensate Drain Connection Size | 1/2 inch (12.7 mm) |
| Physical Dimensions - Unit | 14.2 x 20.5 x 15.0 inches (360 x 520 x 380 mm) |
| Net Weight | 77.2 lbs (35.0 kg) |
| Chassis & Condenser Material | Extra-Deep Composite Condensate Tray & Cupronickel Condenser Coil |
| Standard Factory Warranty | 2 Years |
| Application & Sizing Guidance | High-capacity premium self-contained layout engineered for expansive master staterooms or grand salon environments up to 1,000 cu.ft, min generator 4.5 kW. |
Payment Protection
Checkout will use the selected PayPal or Stripe payment method.
Free International Shipping
Free standard delivery to the United States, Canada and Australia.
Product Support
Ask for product and compatibility information before ordering.

Reviews
There are no reviews yet.