MaxEarn 9PCS 75mm Diesel Heater Ducting Set

What comes in the box and what does each part do?

This Diesel heater ducting set has 9 pieces. You get 2 flexible ducts with a 75 mm (7.5 cm) diameter, 2 air vent outlets, 1 T-pipe and 4 hose clamps.

The ducts carry warm air from the heater. The T-pipe splits that air between hoses. The vent outlets sit at the end of each run and let you aim the air. The clamps hold each joint in place.

Which diesel heaters is it compatible with?

It suits 2 kW, 5 kW and 8 kW diesel air heaters. The listing names Webasto, Propex and Eberspacher as the main brands.

Check one thing before you buy. Your heater outlet needs to take a 75 mm duct. Most heaters in those power ranges do. Some budget units use 60 mm, so measure yours first.

How long are the ducts once fitted?

Each duct is telescopic. It stretches from 50 cm to 100 cm. Two ducts give you up to 200 cm of total run before you add the T-pipe.

Is that enough for a van or a boat? It depends on the layout. A short run to one vent will fit easily. If you need a longer path to the back of a vehicle you may want extra ducting. Longer 300 cm hoses are sold separately.

What is the ducting made from and does it handle heat?

The duct is multi-layer. The inner layer is aluminium foil. It resists high temperatures and corrosion and is flame retardant. An outer reinforcement layer keeps the shape stable and cuts heat loss along the run.

The kit is black and listed as metal. The full set weighs 0.52kg. The listed nominal wall thickness is 0.02 mm.

What does the T-pipe do and when do I need it?

The T-pipe connects 3 hoses at once. One hose comes from the heater and two carry air away. Warm air then reaches two separate areas, such as a sleeping space and a work area.

If you only need one outlet you can skip it. A Y-pipe version of this kit is also listed. It splits the air in the same way but with a Y-shaped branch.

How do I install the air vent outlets?

The outlets come with pre-drilled holes. You do not need to drill the outlet itself. You do need to cut a hole in the panel or floor where it will sit.

A German reviewer advised using a 100 mm (10 cm) hole cutter for this. Each outlet rotates 360 degrees. Once fitted you can turn it to point the air where you want it.

Do the parts get hot during use?

Yes. One reviewer ran a test and found that all parts became very hot at the warm air outlet. They warned of a burn risk.

That makes sense because the air comes straight from a diesel heater. Keep the vents clear of skin and bedding. Keep them away from anything that melts or burns. Do not cover them while the heater runs.

How well do customers rate it and what is the returns policy?

It holds a 4.5 out of 5 rating from 73 ratings. 80% of those are 5 stars and 7% are 1 star. Reviewers describe it as well made and a good accessory kit. One said it fits perfectly.

Returns are free. You have 30 days to send it back in new and unused condition. Start the return from your orders page and choose a return method. The item is made in China.