Our insulation factory line are able to pre-insulated all vessels up to 4000L in capacity before they leave the factory.

WH Cylinders provide many types of insulation and finishes, please see below examples of the insulation and finishes we can provide. If you would like to discuss any of these finishes for your cylinders please feel free to contact one of our expert technical sales people on

0161 343 8610 or email

Powder coated mild steel cased cylinders with injection insulation provide the greatest insulation values.


Cylinders up to 500 litres can be foam spray insulated.

rapid cyl

Large commercial calorifiers can be insulated with 50mm up tp 100mm polyurethane injection with a grey cased finish.