MRN_909349_Coolant Heaters Data Sheet

Marine Coolant Heaters Thermo Pro 50 Eco Thermo Pro 90

Marine Coolant Heaters Thermo Pro 50 Eco n Thermo Pro 90

Delivering the ultimate on-board heating solutions. Webasto Marine Coolant Heaters are an excellent addition to any vessel. They provide on-board hot water for the galley and head, and can also deliver warm air to the cabins and compartments to keep the crew comfortable.

Thermo Pro 50 Eco

Key Features  Heats cabin interiors and provides heat to potable water for shower and galley  High heat output in a compact design  Low fuel and electrical power consumption  Even distribution of warm air  Quiet operation  Space-saving installation  Excellent opportunity to combine with the Webasto BlueCool and FCF air conditioning systems  Separate temperature control in every cabin  Compact design  Robust aluminum casing, resistant to high temperatures or salt  Meets currect boating requirements and standards

8,500 – 17,100 BTU/h

Thermo Pro 90

6,100 – 26,000 BTU/h

Automatic overheat protection

Can be used to heat your hot sanitary water

Space-saving installation in the engine room

Heating comfort just like at home

Even distribution of warmth by means of radiators or blowers

Compact design

Excellent possibilities for combining with Webasto BlueCool air-conditioning systems

Meets current Marine requirements and standards

Low fuel consumption

Installation example for Coolant Heater:

Space-saving and inconspicuous installation in the engine room Boiler for heating hot water – for extra comfort One air handler for Each cabin allows an individual temperature control Controls – simple and logical to use







d e f g h i


Circulating pump Fresh water tank­ Engine Fuel tank Stainless steel exhaust








Coolant Heater Webasto offers several sizes of Coolant Heaters


Technical Specifications:


Thermo Pro 50 Eco

Thermo Pro 90

5011447 (24 V)

5011094 (12 V) Standard Kit 5011095 (24 V) Standard Kit 9029949 (12 V) Base Heater 9029951 (24 V) Base Heater

Part Number & Description

Boost: 31,000 BTU/h (9.1 kW) Operating Range: 6,100–26,000 BTU/h (1.8–7.6 kW)

Heat Output

17,100 BTU/h (5.0 kW)




Boost: 0.29 gal/h (1.1 l/h) Operating Range: 0.05–0.23 gal/h (0.2-0.9 l/h)

Fuel Consumption

0.08 – 0.16 gal/h (0.3 – 0.6 kl/h)

Boost: 90 W Operating Range: 37–83 W

Rated Power Consumption

28 – 46 W

Flow Rate of Circulating Pump Heater Dimensions (LxWxH)

2.2 gal/min (500 l/h) (against 0.14 bar)

7.3 gal/min (1650 l/h) (U4846 against 0.3 psi)

8.6 x 3.6 x 5.7 in (218 x 91 x 144 mm)

15 x 5.5 x 9.1 in (381 x 140 x 231 mm)


5.3 lbs ( 2.4 kg)

10.8 lbs (4.9 kg)

Webasto Thermo & Comfort North America, Inc. 15083 North Road Fenton, Michigan 48430 USA Toll Free: 800-860-7866 Phone: 810-593-6000

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