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  • Hah! Well I'll grab a sample from the one with the buggered element and have a look.

    On the plus side, it's definitely working better than previously. It's only used when people are in the room (and the room has a fire extinguisher) so fingers crossed for no sudden surprises!

    Do very much appreciate the input!

  • It’ll probably definitely likely be diathermic oil. Try searching transformer oil.

    I got some off a big plumbing firm who had it in barrels (but not in London and a while ago).

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