Silencing a 'Chinese diesel heater

I got given a 5kW heater for the workshop, powered by diesel fuel and colloquially known as a 'Chinese diesel heater' (right) - they seem to be based on

Fault with heater bought on blamed for deaths of two men in York

Mount PRO30 Eberspacher Espar or Webasto Floor Turret Mount Plate 30mm 30mm turret for added protection on deep and/or insulated floors in motorhomes, campervans and other recreational vehicles. The heater mount solution chosen by the professionals Ideal for Motorhome RV heater installation through wooden lining or deep corrugations No worries SAFETY FIRST installation - Allows for gastight and secure clamping of exhaust, combustion air and fuel pipe, prior to mounting heater unit.

Eberspacher Webasto Chinese Diesel Heater Stainless Turret Mount Pro 30mm Plate

Almost SILENT Easy Diesel Heater Modifications DIY Motorhome. For Self Build Motorhome Enthusiasts

I love my Chinese diesel heater. Every one on seems to be the same. It kept 3 tents piping hot in 5 degree Fahrenheit weather! : r/CampingGear

Combustion Air Silencer 2/2.2/4/5kW - Lifestyle Equipment & Supplies

Silencing a 'Chinese diesel heater

Chinese Diesel Heater - Workshop Install : 4 Steps (with Pictures) - Instructables

Silencing a 'Chinese diesel heater

Diesel Heater Exhaust Silencer for VVKB Diesel Heater

How To Fix A Noisy Fuel Pump On A Chinese Diesel Heater - Quiet Fuel Pump And No More Ticking Noise

Cheap 60-300cm Stainless Exhaust Muffler Silencer Clamps Bracket Gas Vent Hose Pipe Silence Kit for Car Air Diesels Heater