I just wanted to let everyone here know that I now have my "Garn" like boiler up and runnng. It works better then my expectations. I want to thank all my friends on this site for the wealth of information I have and still am gleaning from this site. I made my boiler (really hydronic heater), from a 3000 gallon tank that I bought off Ebay. I have been running it for the last week, I realize that the temperatures are not really cold yet, but I do live in the U.P. of MI so the temps are going down to the low 20's overnight. Right now I fire once a day (I should say my wife fires once a day). The temperature on the boiler usually read a starting temp of around 160 degrees and an ending temp of between 185-195 degrees. Friday night I was home and the temperature was 195 near the end of the burn (about 6 pm) the next afternoon about 4:30 pm it was still 173, but it was a nice day with outside temps around 50 degrees. Right now I put 3 pcs of paper, 4 pcs of kindling wood, 3-4 pcs of regular wood, turn on fan, light fire with match, shut door, wait 3-4 minutes, fire is roaring by then, load 4-6 pcs of wood in the fire, wait 45 min, reload 6-8 pcs of wood turn timer to 3 hours and forget about the fire. Come back and the temperature has climbed from about 160 to 185-195 depending on how much wood was put in the second load. My wife finds it very easy to operate (she did not grow up on wood). You can't tell the boiler is running except you hear the fan, other wise there is no visible smoke coming out the chimney. I will post some pictures later of the completed project.