If you're thinking about an EARTH boiler you need info from someone who has actually USED one, not people who have one waiting to be hooked up but it looks great sitting in their yard. Or someone who just lit theirs 2 weeks ago. SO… here goes. I've used my Rancher 365 for 4 seasons so far. I'm trying to get it ready for season #5. First off, let me say that mine does heat my house of close to 5000 sq ft (not properly insulated yet) pretty well. In our coldest part of winter in IN I do have to be very religious about stuffing every ounce of wood I can get in the boiler every 12 hours or the fire goes completely out. I work 12 hour days so some days it sucks when I get home. Second, let me say that mine does reach 180 degrees and shut off, no problem. So anyway… I got the boiler installed and fired it up. Right off the bat the air damper was sticking closed once the boiler shut down. I knew this was due to burning green/wet wood… as soon as the water gets to temperature (165-180 degrees) and the blower stops, the damper closes and the fire goes out. As the inside of the firebox begins to cool, the moisture in the air inside the box, from the green/wet wood, cools also, which condensates first on the damper flap. This is because it's the coolest piece of metal (there is nothing on the other side except cold winter air). The moist air is full of creosote and that's what glues the damper closed. I stuck a paper clip on the edge of the damper tube so the damper won't completely lay flat against the lip. This helps significantly but allows the embers in the fire to keep smoldering a bit. This wastes wood and makes smoke. Also the first season the heat shield they put inside the door began to warp and pop the welds off that held it on the door. That heat shield also has a 4" square pipe welded to it which surrounds and covers the 2" damper pipe and keeps wood from falling on top of the damper (without it the damper would be blocked by any wood falling on it). When air is blown in by the blower thru the 2" pipe it creates a venturi effect which sucks air from the firebox around all 4 sides of the heat shield and then thru the 4" pipe surrounding the 2" damper pipe. The air being sucked around the heat shield is supposed to preheat the cold air from outside so you get a better burn. However, that air in the firebox is the hottest air (probably even a lot of flames… we're talking major heat!) and it's drawn over the heat shield and warping it so badly it pops welds. After my 2nd season the heat shield was hanging by 1 corner and the 4" pipe was sitting on the 2" damper tube. I propped it up with a piece of gravel to get thru that season. The folks at EARTH said they would pay a welder with a credit card to fix it for me. Two problems with that… it was below zero, I was heating my house with it and I would have let the fire go out and cool down so it could be fixed… and also there are only 2 welders I know of around me out here in the country and neither accept credit cards. Oh, and another thing… the door isn't new anymore, remember, so there's no way to weld it without first taking the door off the boiler and cutting the remaining angle iron heat shield bracket off so they can clean the metal to make it weldable. There's also the fact that the shield plate would need to be flattened back out somehow. The EARTH people told me any good welder should be able to fix it in 30-45 minutes. In sub zero temps? On the boiler? Whatever. If their welder couldn't make it good enough on a bench, how the heck is someone else supposed to make it good enough after it's all warped to heck and covered with creosote? They blamed it on a new guy they had welding at the time mine was built. I eventually got them to ship me a new door. I got by with the door hanging by 1 corner the rest of that season but had the new door just in case. Next, I unpacked the new door to install it before the next season and found that they never even stove blacked it. It was as orange as rust could be. It didn't have the nice EARTH logo on it. It didn't have the holes drilled to mount the blower cover or anything. It was just a rusty mess! The worst part was that they now build it differently around the hinges and once I got it mounted it wouldn't close. So then I had to take it back off and get a right angle grinder and cut the hinge brackets on the boiler itself so the new door would close. Of course it was now only a couple weeks before I needed to light it again so the pressure was on to get it done. Remember I said they blamed it on that new welder? Not 3 weeks after I lit the boiler with the new door and once again the heat shield was warped and 1 corner popped off. Within the next month it was also hanging by 1 corner. Did they let that same welder wannabe make my 2nd door too? Guess what else… my neighbor took my trailer to Missouri and picked up 3 boilers when we bought them… mine, his, and 1 for a guy I work with. The guy I work with… his 1st door did the same thing as mine and they sent him a new door also. It didn't fit and he also cut his boiler with a grinder to make it fit. The other major thing to complain about is the fact that these things are so inefficient… I mean they are literally a big can with a stackpipe dropped half down inside… any wood burning anywhere near that stack and the fire just shoots right out the top… I mean it looks like a jet airplane with the afterburner on. And there is nothing you can do to prevent it. When the blower is on it is forcing air in which is forcing air out and the flames, and heat, go out with it. I've shot the top of my stack with an infrared thermometer, just for grins, and it was at 985 degrees. A ton of heat is lost out of that 6" pipe. I've often said that if I could catch that heat for just a few minutes my house would be plenty warm. Anyway, it has gotten so hot in the firebox that I now have a notch in the front of my stack inside the firebox from the heat literally burning the metal away as it is rushing into and up that stack. I would say it is at least a 3" notch now. My door is currently at a welder friend's shop. I'm not messing with the idiots at EARTH anymore. I am also going to have the welder repair my stackpipe and build a device of my own design to attempt to get more of the heat from my wood. The only question is whether I'll have enough room left after the modifications to put a sufficient amount of wood in there to heat the house. After this, if it doesn't do much better, I will junk my EARTH boiler. Oh, one more thing… With that short little smoke stack my firewood pile (mountain) caught fire twice last winter. I'm only guessing it's because of the notch I told you about that was burned in the bottom of the stack. It never happened the first 3 seasons. Anyway, I added 4 feet of stovepipe to the top and haven't had any recurrences. My boiler, woodpile and 3 beagles in a kennel would have been totally burned up that night if I didn't decide to go out and get my phone charger out of my car at midnight! If I lost all 3 of those things, which would I have missed the least? Hmmm! So, I'm sure by now you can guess, I would never spend the money to buy another EARTH boiler. I plan to keep heating with a boiler as I know it can be done better, just not with EARTH'S "pipe in a can" design. Good luck to all considering a boiler.