Eberspächer in your camper: control the Airtronic from the SmartKnob and your phone

Updated 27 October 2026EberspächerHeaty

In short

You can control the Eberspächer Airtronic S2 and S3 with Camper Jarvis on the SmartKnob and from your phone, without a separate app and without internet. The Heaty module connects directly to the heater with the included wiring harness: target temperature, control sensor, schedules and fault memory are in the dashboard and on the SmartKnob. We are currently working on the other Airtronic and Hydronic heaters and the Breezonic air conditioner.

Eberspächer parking heaters are installed in many motorhomes and campers. Instead of using the original control panel or a separate app, with Camper Jarvis you set the heater on the SmartKnob and in the dashboard on your phone or tablet, together with your lights, water and energy. For this, Heaty connects directly to the heater with the included wiring harness and talks to it through its data interface.

Which Eberspächer heaters work

Model Connection What works Status
Airtronic S2 Heaty with the wiring harness for Eberspächer Target temperature, control via the sensor in the SmartKnob or the heater's own sensor, read and clear the fault memory Supported
Airtronic S3 Heaty with the wiring harness for Eberspächer Target temperature, control via the sensor in the SmartKnob or the heater's own sensor, read and clear the fault memory Supported
other Airtronic and Hydronic heaters Heaty The integration of the remaining models is under way. In progress
Breezonic roof air conditioner Thermy Integration via RV-C In progress

In progress means: the integration is being developed and cannot be used yet. We do not give a date for it. You always find the current status in the heater compatibility list and, for the Breezonic, in the air conditioner and fridge compatibility list. You have a different Eberspächer model? Write to us using the contact form with the exact model name from the rating plate and which control panel is installed.

What you need

  • A SmartKnob as the central unit.
  • A Heaty with the wiring harness for your Eberspächer heater. The wiring harness is always included.

Heaty takes its power directly from the heater through the wiring harness, so you do not need an extra power cable. It works on 12V and 24V. You use one Heaty per heater. The Breezonic air conditioner will run through Thermy, not through Heaty.

What you get

  • Heat with a turn and a press: set the target temperature directly on the SmartKnob.
  • Schedules: preheat in the morning before the alarm goes off and lower the temperature at night.
  • From your phone in the vehicle: in the dashboard on your phone or tablet you control the heater just like on the SmartKnob, both in sync. You open the dashboard in your browser, no app needed.
  • Fault memory at a glance: read the heater's faults in the dashboard and clear them there.
  • Gentle warmth: with this option less hot air comes out of the outlet, for example by the bed. It only appears if your heater supports it.
  • Without internet: everything runs locally in the vehicle, without cloud. If you have internet on board, you can still use it, for updates for example.

Important: never switch a parking heater off simply through its power supply. After switching off it needs an afterrun so the burner can cool down. This is why a heater in Camper Jarvis always runs through Heaty.

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Related questions

Which heaters can I control with Heaty?

Heaty controls your existing parking heater directly, currently the Autoterm 2D and 4D, Timberline 1.0 and 2.0, the Webasto Air Top Evo 40 and the Eberspächer Airtronic S2 and S3. Heaty connects directly to the heater with the matching wiring harness, which is included. We are working on more Eberspächer and Webasto models as well as Truma, Alde, Wallas and Scheer. The current status is in the [heater compatibility list](/blogs/wissen/kompatibilitaet-heizung). Instead of fiddling with your heater's small original control panel, you simply set temperature, timer and operating mode on the SmartKnob or in the dashboard. One control for everything in the van, without a brand-specific display or app.

Do I need a SmartKnob for Heaty to work?

Yes. Heaty is a module and connects to the SmartKnob, which is the hub of the system. Without a SmartKnob there is no user interface and there are no automations. If you already have one in your vehicle, you simply pair Heaty with it.

Is one Heaty enough for my whole camper?

One Heaty controls exactly one heater. If you have two separate parking heaters in your vehicle, each gets its own Heaty. In return, each one stays individually and cleanly controllable via the SmartKnob and fits perfectly into scenes and automations.

What is included with Heaty?

Everything you need to connect it: the Heaty module, the wiring harness for exactly the heater you select when ordering, and four mounting screws. Because the cable already fits your heater, installation is genuinely plug-and-play: no tinkering, no hunting for adapters.

Does Heaty need a separate power supply?

Usually not. The supplied wiring harness is designed so that Heaty gets its power directly from the heater. That saves you extra cables and valuable build time. The exception is the Timberline: there, Heaty needs its own additional 12V supply. Just plug it in: as soon as Heaty is supplied with power, it actively starts looking for a SmartKnob in pairing mode.

Does Heaty work on 12V and 24V?

Yes. Heaty works in the range from 9 to 36V, so it fits both 12V and 24V systems. It takes its power directly from the heater via the supplied wiring harness anyway.

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