To connect the pstat to the boiler I had to adapt one of the original nuts to a pipe I made. This is because the thread the nut screws on is not BSP, but a metric thread. I used a compression bushing instead of a normal nipple when brazing. I then used an adapter to go from 3/8" BSP to 1/4" BSP and had a second pipe brazed to connect to the pstat. I also made another pipe for the steam arm since the replacement fitting for the steam valve is not the original 3/8" BSP. Wiring was the last step completed before testing.

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