Good job Kurt... If the steam supply pipes were uninsulated, you'd tell them to re-insulate them. If there was no Hartford return, you'd point that out.. (I found two in the past 5 days that did not have the return...both were from the 1990's... ) I use a 'this is a teakettle' talk and emphasize the importance of taking care of the LWCO (flushable type) and the checking of the probe type. I take a photo of the boiler (standing back) and mark the gauge glass optimal water level area, the manual fill valve, the LWCO, etc.. We deal with steam boilers very regularly in the Boston area. We also deal with some cool 'indirect' steam systems in the City. (Steam generated at central 'plants' sent to indirect systems that heat hydronic systems or 'coil units' in tall buildings).