Product details

More than just hot air!
Webasto air heating systems have proved their worth more than a million times in yachts, cars, buses and trucks.
The hot air blower of the compact heater creates your preferred room temperature individually. Moisture and cold stay where they belong: outside!

Special features of the Webasto air heating systems:
Easy to install, economical in their purchase and consumption, quiet operation, stepless ventilation function, delivered with complete marine installation kit, meets current requirements for boats.
The new EVO units are supplied with the new MultiControl ATE control panel and additionally feature a boost function for rapid heating, an ECO mode for reducing power consumption (approx. 70%) and improved operating software.

The Air-Top 2000 ST version has a connection Ø of 60 mm on both sides, the Air-Top 3900/Air-Top 5500 versions have a connection Ø of 90 mm on both sides.

Marine Heater Kit:

  • Heater with mount bracket
  • Control unit with thermostat and temperature sensor
  • Fuel pump with bracket
  • Electrical Prewire Kit for heater (9.5 m) and fuel pump (7.0 m)
  • Fuel filter and 5 m fuel line
  • Combustion air supply duct 25 mm Ø
  • Stainless steel thru hull flue gaskets
  • Stainless steel flexible Exhaust duct with muffler
  • Tank connector

Included with the Webatso marine version:
We deliver all Webatso warm air heaters with the complete marine Heater Kit. Ducts for air supply and warm air, air outlets, clips, elbow pipes, couplings and reducer are not included in delivery.

A. Exhaust pipe / muffler
B. Tank connection
C. Diesel metering pump
D. Control panel
E. Cable set
F. Exhaust gas passage

Functional structure:

  1. Air supply Ø 90mm
  2. Air Top 3900/5500 Evo diesel heater
  3. Inlet combustion air
  4. Diesel connection
  5. Exhaust pipe
  6. Hot air pipe Ø 90/95 mm
  7. Hot air distributor T-piece A-Ø67 / I-Ø80 / A-Ø72 mm
  8. Hot air distributor Y-piece I-Ø65 / A-Ø67 / I-Ø65 mm
  9. Hot air tube Ø 67/72 mm
  10. Exhaust muffler
  11. Warm air outlet with aerator nozzle
  12. Exhaust connections
  13. Hot air tube Ø 60/65 mm


de-flag Manual
PDF, 540,83 KB
de-flag Manual
PDF, 4,34 MB
de-flag Manual
PDF, 1,25 MB
Item no.: 42801
de-flag Manual
PDF, 907,31 KB
de-flag Short manual
PDF, 443,40 KB
fr-flag Manual
.PDF, 3,45 MB
fr-flag Manual
PDF, 4,01 MB
multi-flag Manual
PDF, 3,75 MB
Item no.: 42801
multi-flag Manual
PDF, 1,86 MB
Item no.: 42846,42847,42848,42849
multi-flag Manual
PDF, 4,01 MB

What other SVB customers have to say

100% real reviews

4 customer reviews

5 (out of 4 ratings)
4 Stars
3 Stars
2 Stars
1 Stars
Helmut D.
by Helmut D. Flag of Germany 5/4/2017 Verified purchase
Great product - keeps what is promised.
Guy G.
by Guy G. Flag of Switzerland 10/15/2016
Proche de la perfection; gardez le cap!
Reception in Greece on time even if it is the Greek Post and not DHL book. Easy assembly after several readings of the guide. Everything is working. Thank you and congratulations for excellence.
Dr.-Ing. K.
by Dr.-Ing. K. Flag of Germany 4/9/2013
Very good, complete kit. Very quiet heating; Dosing pump despite isolated installation pretty loud (you get used to it). Something peculiar constructive detail - the cable for the dosing pump is led out through the connecting piece for the combustion air intake. WHY? Overall - I am very satisfied so far.

Customers ask customers

Ask other SVB customers who have already purchased this product from us about their experience.

Your question will be automatically forwarded to other SVB customers and published on the product page. Please do not ask any questions which can only be answered by the SVB team – such as the status of an order or product availability. You are also more than welcome to contact our SVB team by email at: or by phone on: +49 (0)421 57290510 .

  • More "Customers ask customers" available in the following languages :
  • Flag of Italiano
No questions asked yet. Be the first to ask a question!