Simply Green

Over a year and a half ago, I had Simply Green install a new furnace and water heater into my house. I won't go into the story, but it was a chaotic disaster that took quite a bit of emails and calls to get a solution, that involved a threat of fines for improper installation, and a motor that was so noisy that you couldn't sleep. This was all happening in Dec and Jan when temperatures in this area get to below -40 at times! Everything was resolved to my satisfaction, but I knew that I would have trouble trusting them in the future.
Jump to today. I called to find out what I had to do to get my furnace cleaned. I am on a rental program and when I signed up, I was told that someone would come out once a year to clean and check the furnace. When I asked about that service today, I was told that I had a warranty program and not a maintenance program and that getting my furnace cleaned and serviced, was NOT PART OF MY RENTAL AGREEMENT. Then the gentleman told me that as long as I changed my filter every TWO YEARS, I would be fine. OK, clearly this guy is an I d I o t--a filter in a furnace for two years would be so filthy as to be useless and hazardous, and anyone who deals with furnaces knows that filters have a MUCH shorter shelf life in a furnace. He also told me that I would have to sign up for a maintenance plan (at an additional cost) to what I am already paying monthly to have the furnace.
He then told me to find someone in town to check and clean the furnace. Of course, if anything happens while they do it, it could void the warranty that I have on the furnace!!!