Take Control of Your Airflow
Running a diesel heater in your van or overland build means heat goes everywhere or nowhere. This AUTOTERM Variable Flap Y-Piece with Bowden cable puts you in charge — redirect warm air to the living area, sleeping zone, cab, or wherever you need it most, all without touching the heater itself.
The built-in adjustable flap is operated via the included 1.5m Bowden control cable, so you can divert airflow on the fly. No tools, no guesswork — just point the heat where it's needed.

Fits Your Ducting Setup
The Y-piece can be trimmed to suit 60mm, 75mm or 90mm ducting, covering the most common diesel heater duct sizes used in van conversions and expedition rigs. Cut once, fit it right.

What's In the Box

1 × AUTOTERM Variable Flap Y-Piece
1 × 1.5m Bowden Control Cable


Compatible Duct Sizes

60mm
75mm
90mm


Key Features

Genuine AUTOTERM ducting adaptor
Integrated adjustable airflow flap
Includes 1.5m Bowden control cable
Trimmable to 60mm, 75mm or 90mm
Durable, high-quality construction
Ideal for custom warm air distribution systems


Ideal For

Campervans and motorhomes
Overland and expedition vehicles
Caravans and boats
Any off-grid vehicle heating installation