So I've been in my house for 3 weeks now and from paying $365 at closing for the leftover fuel oil, plus 140 gallon to fill the tank, plus another 60 gallons the brought today (about two weeks later). That would have been coal for the hole year. I know what I must do this summer. It's going to be a Keystoker KA6. I really wanted the EMF 520, but I can't justify $3000 for used or $4000 for rebuilt. And I think it's overkill for what I need. The Weil-McLain P-WGO-2 I have is like a 75k BTU and I think it heats the place easy. Plus my father in-law has the a Keystoker and really likes it. I'm checking on some prices for the KA6 and theirs a shop 10 miles away that said about $6000 with tax. And I found a place about a hour and a half from me (14883) that has one on ebay for $5,150.00 or make offer. So I emailed them for a price if I pick it up with bank check in hand. If you sell them new feel free to PM me.