Welcome! Here are the website rules, as well as some tips for using this forum.
Just got a system 2000 Frontier 1 and 40 gal water heater in mid November. Also filled my oil tank at the same time. Its about 45 days and have gone through 3/4 of a tank. Approximately 4 gal per day. I have 2 heat zones along with new thermostats. It has not been extremely cold and I do have the thermostats set to lower temperatures when nobody’s home. My problem is that my old boiler was burning the same amount of oil. Ive checked for leaks and everything appears fine. Is it possible that my system 2000 is not tuned or set up properly? I am going to have a technician come look at it this weekend but would like any feedback. Thank you