WEBASTO Thermo Top Pro 90 Marine Water Heater / 12 V / 9.1 kW

Only 1 in stock
SVB price: €2,168.03
You save: 9%
Excl. VAT, excl. shipping costs.
This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
€2,168.03 This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
Available variants:
Image of THERMO PRO 90 Marine Diesel Water Heater / 24 V / 9.1 kW

WEBASTO THERMO PRO 90 Marine Diesel Water Heater / 24 V / 9.1 kW

Ensure you have warm water as well as a warm cabin on board with this diesel water heater. If you use water on your boat, you'll also want it to be hot. Not a problem for Webasto's modern water heaters. They can also be used to preheat the engine.

Article Number
Model no.
WEBASTO - Pro 90 Water Heater
Operating voltage
12 V
Heating capacity (continuous operation)
1.8 - 7.6 kW
Heating capacity (boost function)
9.1 kW
Max. flow rate
12 l/min
Power consumption
20 - 90 W
Fuel consumption
0.18 - 1.3 l/h
Boost function
Number of outputs
20 mm
20 mm
38 mm
35.2 cm
13.1 cm
23.2 cm
5.3 kg
For boats
10 - 15 m

Product details

Comfortable heating is not limited to just the air. Being able to warm water on board is also beneficial. No problem at all for Webasto water heaters!

Advantages at a glance:
  • Space-saving installation in the engine room
  • Possible preheating of the engine
  • Hot water for the galley and shower
  • The perfect temperature - no dry air
  • Low fuel consumption
  • Space-saving installation with thin hot water pipes (copper, plastic pipes or tubing)
  • Possibile connection to a hot-water fan heater

Technical data:

Heat output Stepless 1.8-7.6 kW
Fuel Diesel
Power consumption 37-83 W
Fuel consumption 0.19 - 0.9 l/h
Circulating pump 700 l/h
Dimensions 355 x 133 x 232 mm
Weight 4.8 kg
Exhaust pipe inner-ø ø 38 mm
Heating type Stepless water heater
For ship lengths of: 10-15 m
Equipment Marine
Delivery contents of the marine version:
  • 12V heater with circulation pump
  • Mount for heater
  • Cable harness
  • Switch with light
  • Dosing pump
  • Fuel hose: 6 m
  • T-piece fuel extractor
  • Intake hose: 0.4 m
  • Inlet silencer
  • Exhaust gas silencer, stainless-steel
  • Plastic pipes + clamps
  • Through-hull fittings
  • Hoses


de-flag Brochure
PDF, 16,85 MB
de-flag Datasheet
PDF, 233,16 KB
de-flag Manual
PDF, 3,05 MB

What other SVB customers have to say

100% real reviews

1 customer reviews

4 (out of 1 ratings)
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1 Stars
Jean marc C.
by Jean marc C. Flag of France 8/26/2019 Verified purchase
Effective but a bit noisy
Installed in the engine compartment of a 12 meter aluminum sailboat quite well insulated. Used for the moment on North Norwegian Navigation and Spitsbergen Associated with 3 water radiators with 2 speed fan. Efficient and reliable A little noisy. Seamless support by the SVB services during the installation that I made alone. A big thank you to them

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Comparison with other products

This product
Item no.
Customer ratings
WEBASTO - Pro 90 Water Heater
WEBASTO - Thermo Pro 90 Marine water heater
Not specified
Operating voltage
12 V
24 V
Availability / Price
only €2.168 03
Buy now
only €2.201 64
Buy now

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