This is an update to my recent review. Besides all the things wrong that I mentioned in my original review, it turns out that Kevin put on the wrong nozzle, despite the tag on the front of the burner saying which nozzle to use. This explains why it was running so inefficiently after he was done with the "cleaning". Also, when he closed up the front of the furnace, he allowed insulation to get caught up on the threads of one of the closing bolts which means that the nut will have to be cut off and replaced. To force it would break the bolt holding the door closed. Besides the $185 he charged for the cleaning (he was quick to cash the check), it will cost me over $400. to have my furnace repaired to the condition it should be in. He also told me that he would check out the price of a new combustion chamber and get right back to me. He never did. This guys work was a disaster! read more