Flexible diesel heater and water heater in a compact format

More and more people want to take advantage of the large diesel tank, and the convenience it brings. Choose the Alde Compact 4000 D for a flexible, user-friendly and reliable heating system that will make your journeys easier and more comfortable.

Don’t let anything stop you from exploring new places and enjoying the freedom of the road.

Advantages

Stepless diesel burner

Automatic high altitude mode

Heating and hot water

Quiet and cosy hydronic heating

10 L hot water tank

Information

Alde Compact 4000 D

Article number: 40009091

The boiler Alde Compact 4000 D provides both heating and hot water. The heating system contains both a diesel burner and electrical cartridges, and can be powered with either one energy source separately or both.

System description

The Alde Compact 4000 D operates in different steps (1-6 for diesel, 1 kW-3 kW electric) to provide heating and hot water. Heating is distributed via pipes, convectors and other heating accessories throughout the whole vehicle.

The heat convects up through air pockets, enveloping the entire inside in an gentle and unobtrusive warmth. Being a buildable and adaptable system it is also suitable for a vast scope of vehicle types.

The Alde Compact 4000 D is available from may 1st 2025

High output

Being able to combine two power sources, electrical and diesel, the Alde Compact 4000 D delivers an impressive total output of 9 kW. This dual-power capability ensures robust and reliable heating performance, making it suitable for a wide range of climates and conditions.

Advanced Dual-Zone Heating Option

Building on the success of our previous models, the Alde Compact 4000 D offers an advanced dual-zone heating option. This allows users to set and control temperatures in two distinct zones within their vehicle.

Premium Silent and Even Heat Distribution

The Alde Compact 4000 D continues our tradition of providing premium silent and even heat distribution. The smart Alde system, based on convection technology, ensures that every vehicle is heated quietly and eciently, creating a comfortable environment without noise or temperature fluctuations.

Height x depth x width	305 x 420 x 500 mm
Weight	14 kg
Fluid volume, glycol tank	3,5 litres
Fluid volume, water tank	10 litres
Max. pressure glycol circuit	0,05 MPa (0,5 bar open system)
Max. pressure water circuit	0,3 MPa (3,0 bar)
System temperature	max 90 °C
Battery voltage	12 V DC
12 V power consumption	max. 20 A
Fuse 12 V	2 x 15 A
DIESEL	-
Effect	1–6 kW stepless
Consumption	0,1 to 0,6 L/h
ELECTRICITY	-
Voltage	230-240 V AC 50 Hz
Fuse size	16 A
Power step 1	1200 W
Power step 2	2100 W
Power step 3	3300 W

So much more than a diesel heater

User-friendly control panel

A simple, modern and easy-to-navigate control panel.

2 in 1-solution

Get heating and hot water in one. Spacious 10 L hot water tank.

Alde ICT

Smart technology and algorithms that sense your surroundings for you.

Utilise the vehicle fuel tank

An obvious choice for the long-distance and winter camper. Thanks to being diesel fueled the heater is even more flexible.

Ask your dealer about Alde heating systems today!

We understand what it takes when you want to feel free on the road. Since 1966, we have been developing hydronic heating systems, and since then we have dedicated ourselves to creating functional, robust and high-performance products.

Whatever the terrain or season, our diesel heater, the Alde Compact 4000 D, delivers both heat and hot water to your recreational vehicle.