another angle - my SS eletric boiler and HLT - HLT has polycarb sightglass - runs on 1 kettle element- controlled by thermostat. All fittings on Kettle are SS except for p/u tube which is copper - I use a SS braid in the bottom - no problems so far - has 2 kettle elements - one controled by electric stove type controler - works much better than I thought - very easy to control boil lou
