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How do I measure the BSP thread size of my immersion heater?

This is a frequently asked question on our website. How do I measure the BSP thread size on my immersion heater?

The following steps will help you solve this issue:


Tools needed: Vernier Caliper (easier than a tape measure)

  • Using the vernier caliper, measure the thread of the immersion heater at the bottom of the head (as shown on video)
  • Taking the measurement from the calipers, find the corresponding BSP size in our BSP Thread Size table.
  • Once you have measured the thread, use the link to buy your replacement immersion heater on our webshop.


How to measure BSP thread size on Immersion Heaters


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