Air heater sd air top evo 40 D, 12V – code: 9036994A – Webasto

Webasto Air Top Evo 40 D 12V air heater (code 9036994A)

The Webasto Air Top Evo 40 D is an air heater designed for marine applications where comfort on board and effective humidity management are needed. The compact size facilitates integration into small technical spaces, while the distribution of warm air through multiple outlets helps create a more pleasant environment and supports the dehumidification of the boat.

Thanks to the control of multiple parameters (with multiple sensors), the heating adjustment can, to some extent, decouple the thermal power from the blower speed. This approach aims for more balanced operation during normal use, with attention to electrical consumption and noise.

Main features and details

This model belongs to the Air Top Evo family and is configured for power supply Diesel. It is suitable for sailing and motor boats up to 45 feet (usage indication provided by the manufacturer/product description).

Highlighted functions and features

• Rapid heating with declared nominal power up to 4.0 kW (in boost).
• Intelligent blower control, designed to optimize operation according to heat demand.
• Flame detection via exhaust gas temperature sensor.
• Automatic cold start function to enable a quicker start in cold conditions.
• Improved air intake silencer.
• Vibration dampers for supply pipes.
• Compatibility with digital user interface MultiControl.
• Quiet operation supported by lower blower speed and quiet fuel pump (DP42), as indicated in the description.

Technical data (as per datasheet)

• Thermal power, control/boost range (kW): 1.5 – 3.5/4.0
• Fuel consumption, Control/boost range (l/h): 0.18 – 0.43/0.49
• Rated voltage (V): 12 / 24
• Nominal power consumption, control/boost range (W): 132/140
• Fuels: Diesel EN 590, FAME DIN EN 14214
• Operating temperature range (°C): from -40 to +40
• Dimensions LxWxH (mm): 423 x 148 x 162
• Weight (kg): 5,9
• Automatic height adjustment (m): 2200

Recommended applications in the nautical field

The air heater is a typical solution for winter and mid-season air conditioning, especially when a system that distributes heat targeted to different areas of the boat is desired.

Where it fits best

• Cabins and dinettes: to increase comfort during onboard stays.
• Technical areas and passages: useful when you want to bring warm air to less served areas, compatible with the system design.
• Sailboats and motorboats: suitable for units up to 45 feet according to the product description.

Dehumidification and onboard comfort

The presence of multiple hot air outlets helps better manage heat distribution and can contribute to a drier indoor environment, an aspect particularly important in boating (condensation, humidity in rooms, perceived comfort).

Operational advantages

The design of the Air Top Evo 40 D emphasizes control and quality of operation, with solutions oriented towards practical use onboard.

Why choose it

• Advanced adjustment: controlling multiple parameters allows finer management of heating, with the possibility to reduce the blower speed at the same thermal power under certain conditions.
• Electrical efficiency: the blower control logic is designed to contain electrical consumption during normal operation (as indicated in the description).
• Acoustic comfort: quieter operation thanks to blower at lower speed and silent fuel pump (DP42), as well as improved air intake silencer.
• Cold start: automatic cold start function to support commissioning.
• User interface: compatibility with MultiControl for digital management.

Usage and installation notes

To achieve an effective system consistent with onboard requirements, it is important to properly design air distribution and heater placement, considering available spaces and duct routes.

Practical indications (general)

• Air distribution: evaluate the number and position of outlets to serve internal volumes evenly.
• Alimentazione: the product is indicated with nominal voltage 12 / 24 V; check the onboard system configuration and the correct version/connection during installation.
• : supply and return lines (pay attention to material and hose compatibility).: use fuels indicated on the datasheet (Diesel EN 590, FAME DIN EN 14214).
• Noise and vibrations: the presence of vibration dampers for supply pipes is a useful element for neater installation and to reduce mechanical transmissions.
• Controls: if digital control is desired, consider compatibility with MultiControl and plan the placement of the panel/interface.

Product identification

• Webasto code / supplier: 9036994A
• SKU: WEB000000008

FAQ – Frequently Asked Questions

Is this heater suitable for boating?

Yes, it is described as an air heater for sailboats and motorboats, with usage indication up to 45 feet.

What is the product code?

The indicated product code is 9036994A (Webasto / supplier code).

What fuel does the Webasto Air Top Evo 40 D use?

Diesel EN 590 and FAME DIN EN 14214 are indicated on the data sheet.

Is it compatible with a digital control?

Yes, the description indicates compatibility with the new MultiControl digital user interface.

What are the main available technical data?

They include: thermal power 1.5–3.5/4.0 kW, fuel consumption 0.18–0.43/0.49 l/h, nominal voltage 12/24 V, dimensions 423 x 148 x 162 mm, and weight 5.9 kg.