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Webasto Dual Top ST 6 Standard Heater kit

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  • Webasto Dual Top 6 Base Plate (Inside Installation) - Image 01


The latest in the Webasto Dual Top series, the ST 6 is a combined diesel air and water heater. Designed with external mounting in mind and powered from the vehicle’s fuel tank, it’s a great space-efficient solution, producing 6KW of heat.


ST 6 provides 6KW (20,500 BTU/hr) of warm air and hot water up to 70°C (158°F).

Webasto Dual Top ST 6 requires no extra wiring and installation in altitudes up to 7,200ft.

Low noise profile due to smooth burner and blower operations ensures comfort.

Features an Anti Drain mode and an Antifreeze function with adjustable temperature modulation.

Save on maintenance, fuel, storage, and campground fees thanks to an efficient and lightweight design

The GoSun Camp 365 off-grid trailer unfolds in under 10 minutes into a 100 sq.ft. spacious camper.

A built-in water purifying system and power station to store solar energy let you stay on the road for longer.

This off-grid camper includes all the household appliances for comfortable living on the road.


The latest in the Webasto Dual Top series, the ST 6 is a combined diesel air and water heater. Powerful and energy-efficient, the Dual Top ST 6 consumes only 0.05 – 0.17gal/hr.

Powerful and reliable, this dual heater will support you in cold climates and in altitudes up to 7,200ft. With 6KW of heat output, it’s a perfect fit for medium-sized vehicles. Designed with external mounting in mind, this Webasto diesel heater can be installed underneath the vehicle.


Webasto Dual Top ST 6 provides air heating and hot water in one unit. It comes with a stainless steel 2.6gal boiler that won’t need to be replaced during the heater's lifetime. The standard control unit that smoothly switches between several operational modes, including cabin heating and sanitary water heating.

Heat your water on the go at a temperature range of 104°-158°F. Never worry about the boiler freezing over due to its Antifreeze mode. What’s more, boiler maintenance is made extra easy due to the Anti Drain mode.


The Webasto Dual Top ST 6 is certified according to ECE standards for quality assurance.

All ducting accessories and fittings are compatible with Webasto DT EVO / RHA units.

The combined air-water heater is equipped with a stainless steel 2.6 gallon water boiler.

Design allows for installation outside the vehicle to save cabin space.

Innovative design and super efficient solar-powered appliances.

Durable and lightweight all-aluminum frame is immune to mold or rust.

A complete electricity system, powered entirely by solar panels.

100 square feet of customizable open space to fit all your needs.


Fuel Type
Rated Voltage
Fuel Consumption
0.05 – 0.17 gal/hr (0.19 - 0.64 l/hr)
Heat Output
6 KW (20,500 BTU)
Boiler Capacity
2.6 gal (10 l)
External Dimensions
12 x 13.9 x 10 in (305 x 353 x 25 4 mm)


  • Webasto Dual Top ST 6 Heater

  • Manual Control Panel

  • Extension Cable for the Control Panel (3m)

  • Wiring Harness

  • External Temperature Sensor

  • Dosing Pump DP40

  • Extension Wiring Harness for the Dosing Pump (7m)

  • Fuel Hose (5m)

  • Pipe connectors (10mm)

  • Air-Intake Silencer

  • Exhaust Silencer

  • Air Intake Cover

  • L-Shape Mounting Brackets

  • Mounting Parts with Shock Absorbers

  • Operation / Installation Manual



Installation, servicing and maintenance must be done in accordance with manufacturer’s guidelines. Failure to follow these guidelines will result in voiding your warranty. 

We provide free technical and installation support via email or phone to all of our customers who purchase a heater, heater kit or other products from Heatso. We take pride in our customer service and want to ensure that your heater system is properly installed. As a result, if you have any difficulties, please do not hesitate to contact us at [email protected].

If you require removing and/or refitting your item, please visit a local professional or authorised specialist, if you can not find one you can contact us and we will try to recommend a local partner to assist with the task. The cost of removing and/or refitting this item is not covered by the warranty.

Standard/Premium Warranty Terms for Espar/Eberspacher or Webasto Heaters & Heater kits

2 Years + optional 1 year extended Warranty available

If the item has failed within warrantable conditions:

  1. Please fill out the contact form on the “Contact us” page.
  2. A representative will contact you within 24 business hours to confirm the details and assist you further.
  3. If the product needs to be inspected by our service engineer, we will provide shipping labels for you to print and attach before handing over to our courier for collection.
  4. The shipping label will contain instructions for arranging pickup at your location or drop off at a nearby FedEx location. Follow these instructions to pass the package to FedEx.
    1. *The Label must be attached to the packages before leaving the package with FedEx.
    2. *You can also choose to drop off the item at a FedEx post office instead of requesting a courier collection.
    3. *If after inspection it appears that the item is not warrantable and the malfunction is caused by a non-warrantable condition, we will kindly ask you to cover shipping expenses at a discounted flat rate.
  5. On average, diagnostics of heaters and their parts takes 3 to 4 working days from the moment the item has reached our warehouse.
    1. *The diagnostics report is provided by a manufacturer approved authorised service centre.
  6. If during diagnostics it was concluded that the fault falls under non-warrantable conditions, our customer support will reach out to you and provide you with an estimated repair cost.
    1. *Please note that we strive to provide the lowest possible repair prices.
  7. Under normal circumstances it can take 3-7 working days after diagnostics to repair most minor malfunctions.
    1. *Please note that each case is unique and your repairs may take longer depending on the fault.


*Please note that all deadlines above are approximate and everything depends on the specific details of each case.

**If your item has been installed by a third party, please save all the documentation.This documentation can help find and fix the fault faster.


4 Reviews Hide Reviews Show Reviews

  • 5
    Great product

    Posted by Brian H. on 20th May 2021

    I researched this product very carefully before buying and Heatso was the only company that actually had this unit in stock. Very fast shipping, friendly customer service.

  • 5
    Well worth the wait

    Posted by Andy Bates on 6th May 2021


  • 5
    Great company

    Posted by Chester B. on 22nd May 2020

    I cannot recommend enough Heatso as company. The extra mile they go for their customers is much appreciated.
    I had to pre-order (not straight out "Buy") this Webasto Dual Top EVO 6 heater, and had to wait a few months (I'll be honest here...), but it was worth it. Folks at Heatso thoroughly explained whole order process, told me what's the reason for the wait, constantly had given me an update, so I was completely relaxed that I will receive my heater with not problems. And I did.
    The heater itself works perfectly. It was quite straight forward installation, though it took some time. But overall, I'm very happy with the quality of the heater (though, it was expected from Webasto).
    The care of Heatso staff was just a cherry on the top.
    Highly recommended!

  • 5
    Great customer service and product!

    Posted by Tom C. on 30th Oct 2017

    The Dial Top Evo 6 has been in our van for a few weeks and has been working flawlessly on the cold nights. It’s quiet, yet pumps out the heat very well. Even though it’s on the larger side, it takes up much less space then a propane system with heater and water heater. Being able to never have to worry about filling up both diesel and propane is a wonderful luxury as well.

    The install instructions are very well laid out and easy to follow. You will, however, need to be able to fabricate a mounting system if it’s going on the outside of the vehicle. There is a kit for inside installs, but we had the perfect spot saved up under the van.

    Most everything was included in the kit, aside from ducting and water lines. Wiring is very easy.

    The product was back ordered a month or so and the folks at Heatso communicated very well with me and were helpful.

    I definitely recommend this as a solution for hot water and air for an RV or conversion vehicle.