I'm sure there has been a thread about using a coffee urn as a HLT but I had a feeling it related to the ones then offered on Trademe. I don't seem to find any offered there now and I reckon I'd like to try and hunt out a 20L (or thereabouts) urn with a settable thermostat to use as a HLT, since for my first brew my kettle had to double as a HLT and it seemed quite a hassle. I wondered how many people do this and whether there were any tips on where to get a suitable urn in NZ?