Parking Heater Exhaust Silencer Kit

What is this silencer made from?

The listing title says stainless steel. The product description and bullet points say aluminium alloy. Go by the second version. The body is blue and the surface is clear with no burrs. Aluminium alloy is light and it resists heat and corrosion. The makers also say it handles impact well.

This Parking heater exhaust silencer is made by Auirshiky and comes from China. It is listed as universal fit.

How much quieter is it than the silencer supplied with my heater?

Most buyers say it is a clear step up. One UK buyer called it much quieter than the original. Another said it was a great improvement on the one that came with the heater. A German buyer said it cut noise immensely compared with the thin sheet metal silencer that ships with many diesel heaters.

It is not a miracle fix though. One 4-star reviewer found it only slightly quieter. Another buyer noticed something odd once the exhaust went quiet. The black air intake was now just as loud. They lined the inside of the intake with 1 cm thick foam and fitted both parts outside. Their advice is to treat intake noise as well if neighbours are close.

What temperatures can it handle?

The maker rates it for exhaust gas of 400 to 600 degrees Celsius. That covers the heat from a diesel parking heater. The body is built to take it without damage.

Will the colour change? One reviewer reported the blue finish turns purple when hot. That is a cosmetic change. The listing also warns that colour may differ slightly from the photos because of screen settings.

How big is it and how much does it weigh?

The size is 15 x 11 x 3 cm. The weight is listed two ways. The product description says 200 g (0.2kg). The specification table says 0.41kg. The difference may come from the clamps and brackets. Treat 0.2 to 0.41kg as the range.

Is it bulky? One German buyer thought so. They said it is quite large and that the mounting holes sit in awkward places. They had not fitted it yet because they needed to work out a way to fix it. Check you have room before you buy.

Will it fit my heater and vehicle?

The title gives the exhaust size as 24 mm. Measure your exhaust pipe first. It suits all types of diesel parking heaters. The listing also says it suits the exhaust systems of cars and motorcycles.

Use this Parking heater exhaust silencer only on a pipe that matches that 24 mm size. Clamps hold the pipe in place. A mismatch will leave a loose joint.

What comes in the box and how hard is it to fit?

You get the silencer plus two clamps and two screws. The listing also names brackets. You need no welding and no special fabrication. A UK buyer said it was simple to install.

You will need basic hand tools to tighten the clamps. Plan where the brackets will sit before you drill anything.

Why does it cut noise better than a straight pipe?

The design uses a curved pipe and a honeycomb structure. This adds resistance to sound travel and friction. A plain straight pipe has none of this. The gas still flows smoothly because the body is strong and keeps its shape.

One buyer compared it with branded silencers. They said it is similar to those with a coil inside. They did not mean the ones with a straight tube full of holes. The silencer can also expand freely while the heater runs and when it shuts down. That puts no extra strain on the exhaust pipe.

What do buyers rate it and what are the returns?

It holds 4.5 out of 5 stars from 26 ratings. In total 71% gave 5 stars and 15% gave 4 stars. Another 5% gave 3 stars and 9% gave 2 stars. Nobody gave 1 star. It carries the Amazon's Choice label and ranks 15th in Car Silencers.

Returns are free if the item is new and unused. You get a 30-day return window. The listing shows no manufacturer warranty. Keep the packaging until you know it fits.