Years later..... No one seems to have answered the original question, which I also have. I have the same setup - oil heat, tankless boiler, and indirect hot water. All other issues aside, can't my Beckett burner be set up with a timer to shut all heating down. ( I have programmable thermostats, but the boiler still maintains a 104 degree temp that isn't necessary). I flip the emergency switch every day, but want an automated way to do it. Tried a cheap timer (rated for 15 amps), but only managed to weld the contacts together. Are there heavier duty timers or a power relay I can time that don't cost a fortune?