control of old firetube boilers

tim from Reed Wright

?? to Wallies, I am trying to decide on the best control of old firetube h20 boilers. Going to get rid of old controls except for safeties and re-control with reset, Tekmar specifically. Although don't like there timer as the bldg managers won't understand them. Any Ideas on a good timer setup to cycle the system on and off, but easy to set for customers. Also still not sure how much benefit they will get when you cannot go below 140 degrees and the system is really designed for 160 at low od temps. Ideas???? Thanks in advance and Happy thanksgiving.