Autoterm Air 4D Boat Heater 4 kW 24 V – Diesel heater for boat, camper & RV (Pre-order)

The Autoterm Air 4D 4 kW 24 V diesel heater is a powerful and reliable heating solution for those who want efficient, economical and stable heating in boats, motorhomes, caravans or other mobile spaces with a 24 V system. With a heating output of up to 4 kW, the Air 4D delivers fast heating and a high level of comfort even in cold conditions, making it optimal for winter use in Nordic climates.

This model runs on 24 V DC , making it ideal for installations in larger vessels and vehicles with 24 V battery systems. Please note that this variant must be pre-ordered as it is not in stock.

⭐ Product benefits

🔥 Powerful heating effect

• Up to 4 kW , perfect for larger rooms and cabins.

• Suitable for both marine and mobile living spaces.

📉 Efficient & economical operation

• Low diesel and energy consumption despite high heat output.

• Reliable operation even in cold temperatures.

🤫 Quiet function

• Designed for minimal noise during heat dissipation.

🛠️ Robust & flexible installation

• Compact 24 V unit – easy to integrate into existing installations.

🛍️ Why choose this diesel heater?

✔ 4 kW power provides comfortable heating in larger rooms
✔ 24 V variant – perfect for larger vehicles and marine systems
✔ High operational reliability in cold environments
✔ With low consumption and quiet operation
✔ Pre-order – we will order to your home!

📌 Areas of application

• ⛵ Boats & yachts with 24 V systems

• 🚐 Vans & larger vehicles with 24 V battery

• 🏕 Caravans & mobile homes

• 🛠 Workshops and off-grid installations

⚠️ Important – Pre-order

This 24 V variant is not in stock and must therefore be ordered . Contact us if you would like an estimated delivery time or help planning an installation.

🔧 Compatible accessories

• Hot air hoses Ø60 mm & Ø75 mm – for heat distribution

• Air inlet valves and nozzles – for a neat air outlet

• Reducing adapters and connectors – for flexible piping

• T-pieces and Y-valves – for branching hot air

📌 Related products

• Autoterm Air 4D 4 kW 12 V – 12 V variant for smaller installations

• Autoterm Air 2D 2 kW – smaller heater for compact rooms

• Reduction adapters 75↔60 mm – for hot air ducts

• Air nozzles & grilles for hot air outlets – for neat heat dissipation