Yrichtra 75mm Diesel Heater Ducting

What size connections does this ducting fit?

The outer diameter is 75mm and the effective inner diameter is 80mm. The 80mm bore is built to slip over standard 75mm outlets. Two stainless steel hose clamps then tighten it for an airtight hold. Reviewers of the bigger 150mm version said the fit was snug and needed some effort. Test it on your outlet before you trim any length.

How long is the hose and can I shorten it?

The title and specs list 5m. The bullet points say it extends up to 2.5m. That likely refers to the stretched length of the product description, so confirm before buying if you need a precise run. You can cut it to length. Use a sharp knife or snips on the aluminium and PVC wall. Cut between the wire coils and clamp the new end as normal.

What temperatures can it handle?

The stated range is -30°C to 85°C. The aluminium layers are flame-retardant. The hose stays dimensionally stable through temperature swings. The brand says it is suited to dryers and ventilation. Do not use it directly on a hot exhaust. Check the heater manual for the temperature of the warm air outlet before you fit it.

Is it quiet in use?

Noise dampening is one of its main features. The 5-layer wall buffers airflow vibrations. The listing says this makes it much quieter than thin single-layer hoses. Fan noise from the heater itself will not change. Secure the hose so it does not flap against panels. Reviewers noted that loose hoses move around.

Is it stiff or floppy?

It is flexible. One reviewer said it sags when run sideways and flaps unless the end is fixed. Another found it easily crumpled and not able to hold a shape. A third liked that it did not buckle. Use clips or cable ties every 30 to 50cm on horizontal runs. This stops sagging and keeps airflow clear.

Does the hose get hot on the outside?

Yes it can. Heat emitted had 10 customer mentions and 8 were negative. One reviewer felt a lot of heat coming from the hose wall. Another said it did not get too warm. A French reviewer pointed out that hot air will always warm the hose. Wrapping it in insulation helps. Keep it clear of fuel lines and wiring.

What else can I use it for?

The listing names tumble dryer vents and heating systems. It also names portable AC units and extractor fans. It suits kitchens and bathrooms and grow tents. Yrichtra also lists it for cooker hoods. Pick a size that matches your outlet. The range runs 75mm 100mm 125mm and 150mm. The 150mm size is wider than a standard 150mm fitting according to some reviewers.

What comes in the box and can I return it?

You get one hose and two stainless steel clamps. The seller is meirier and it ships from Amazon. Returns are free for the shipping address you chose. You get a 30-day return window on many products. The item must be new and unused. One German reviewer found the clamp threads a little rough. They swapped to two hardware store clamps. Keep a spare pair to hand.