Shropshire Fire and Rescue Service scrambled a crew from the station at Much Wenlock to Sytch Lane in the town at 1.42am on Saturday.
A spokesman for SFRS said: "Fire Investigation called out and confirmed deliberate ignition."
Firefighters have asked anyone with information to call police on 101 or Crimestoppers on 0800 555111.
The fire crew had used breathing apparatus, cutters/spreaders and a hosereel jet to deal with the incident. They declared the danger was over at 3.18am.
As well as a fire investigation officer, police were also at the scene.
At 01.42hrs 04.02.23 crews were called to a van on fire in Sytch Lane Much Wenlock. Fire Investigation called out and confirmed deliberate ignition. If you have any information please contact @LpptNWestMercia on 101 or @CrimestoppersUK on 0800555111 pic.twitter.com/8eOAQaf3jd
— Shropshire Fire and Rescue Service (@shropsfire) February 7, 2023
