I bought a second hand one of these [250L version] off eBay a few months ago for £360 including a load of other stuff. Searched the internet and found they're Chinese. Also spotted that HSE had placed a prohibition notice on them due to a safety issue. I phoned HSE but they didn't have any further details about what their concern had been and the UK distributor who got the notice had stopped selling them. It's got a grundfos type circulation pump for water washing so it might have been this [if it was used to circulate the oil/methoxide by mistake]. Other than that I'm impressed by it. 2 independently switched 1.5kw heaters and you can set the temperature and just leave it. The main pump is an industrial one [according to the limited literature it came with] and works brilliantly. I haven't used it yet for water washing but pump it over to my Green Genie one to do the cleaning and polishing. Apparently the Chinese manufacturers also had a condensing kit that could be attached for methanol recovery but I haven't found out who the manufacturers were/are.
