7 thousand dollar mistake. In the Spring of 2012 I had a local licensed plumber replace an old oil heating boiler with a High Efficiency Gas fired direct vent condensing boiler. According to the plumber this was the way to go, it was manufacture by a reputable company by the name of Crown Boilers now owned by Velocity Boiler Works, it was efficient and reliable, a good fit for rental and residential properties. The boiler know as a Bimini bwc070 worked well the Fall of 2012, Winter and Fall of 2013 and Winter of 2014. The heating bills were very reasonable. The Fall of 2015 the unit abruptly failed to work. The same plumber determined the blower motor was deceased and had to be replaced. Crown Boiler refused any warranty and during some heated conversations with Crown support people they actually hung up on me. The plumber supposedly tried to help, but did not succeed either. The total bill came to $973, $550 for the part, the rest labor, five man hours to replace a blower motor. I knew I was in deep trouble right away because the plumber's technicians had no clue how to service this unit and were basically on the phone the whole time trying to find out how to remove the next screw. Totally unfamiliar with the product they suppose to service, it was pathetic. The Fall of the 2016 I hired the same plumber ( I know, I'm an idiot ) to give the unit a once over before the start of the winter. Again the technician sent to perform the procedure had no clue, but deemed the unit in working order, which it did for another year. During the Fall of 2017 my tenant informed me the unit was not turning on. I was away and neither the plumber nor its answering service picking up. Discovered that by turning the ac power to off for a few minutes and then back on, the unit would continue to work, sometimes for weeks and months before failing again. Limped a long for the winter of 2018. Made several attempts to have the unit checked out by a factory rep without any success. One did finally come by without any notice when I was away on business, so nothing got resolved. This past September, Fall of 2018 I started to get really worried, no support from the Plumber and the unit would not even run one complete cycle without the controller crashing and shutting down. Called the original plumber, they were on time but again no proper tools and had no clue what the errors meant. Got a hold of a different plumber somewhat familiar with the Crown Boiler, after and hour of trouble shooting and some calls indicated the computer was now bad as well as a possible clogged heat exchange. According to him and not mentioned in the maintenance schedule the heater exchanger is supposed to be removed and cleaned every year, a procedure that takes several hours. Wow. The repair with parts and labor would be practically the price of a new unit. Nice, 7 thousand up in smoke in roughly five years. Ripped it out of the wall and replaced with a Bosch. Welcome to the joys of rental properties and dealing with unscrupulous vendors and contractors. How do they sleep at night is beyond me. Will never buy anything Crown again.