Lennox AC maintenance and inspection. AC is in good condition at this time. All electrical components are in good shape, refrigerant levels are within normal range and system is cooling very well with a 19f temperature drop between return and supply. Lennox furnace maintenance and inspection. Furnace is operating safely and efficiently and in good condition for its age. Found no problems or concerns with the furnace or AC during visit Did not perform tankless flush due to copper heat exchanger and copper pipes internally. It has been a number of years since it was last flushed and did not want to risk the flush opening up a pinhole leak which is common on these style of tankless units.