Truma Cowl Extension AKV

Truma Cowl Extension AKV

The Truma Cowl Extension AKV is a genuine spare part designed to extend the roof flue outlet of Truma caravan and motorhome heaters. This extension raises the height of the heater chimney by approximately 150 mm, helping ensure proper exhaust ventilation and preventing the flue outlet from becoming obstructed by snow, debris or strong winds.

It fits directly onto compatible Truma roof cowls and flue systems, making it an ideal upgrade or replacement component for caravans and motorhomes fitted with Truma S-series gas heaters. 

Why Choose This Spare Part

• Extends heater flue by approx. 150 mm – improves exhaust ventilation.

• Prevents blockage from snow or debris – helps maintain heater performance.

• Helps stabilise the flame in windy conditions – reduces the chance of the burner blowing out.

• Compatible with Truma S-series heaters commonly used in caravans and motorhomes.

• Simple push-fit installation onto existing Truma roof cowl systems.

Key Features

• Flue chimney extension for Truma heater roof cowls

• Extends exhaust outlet height for improved airflow

• Helps protect the heater flue from snow and environmental obstruction

• Lightweight weather-resistant construction

• Suitable for caravans, motorhomes and campervans

Technical Specifications

Installation Notes

The AKV cowl extension fits between the existing Truma roof cowl and heater flue outlet, raising the chimney height to improve ventilation and reduce the risk of blockage from snow accumulation or external obstacles.

This extension is commonly used on Truma S3002 and similar roof-flued heaters, where increased chimney height improves safe exhaust operation.

For safety, installation should be carried out by a competent person or qualified technician, particularly when working with gas heating appliances.

What’s Included

• 1 × Truma Cowl Extension AKV (150 mm)

Why Buy This Spare Part?

If your caravan or motorhome heater flue sits close to the roof surface or may be exposed to snow build-up or strong winds, the Truma AKV cowl extension provides a simple and effective solution. By raising the flue outlet height, it helps maintain proper heater ventilation, consistent flame operation and safe exhaust performance during all seasons.