Was at Rural King a few weeks back on a mission to obtain welding rods and wood stove gaskets and it was unfortunately Black Friday and passing through the heater section Somehow a 170,000 BTU torpedo heater, a overhead garage heater, and both Models of the Mr Heater Buddy Heaters made onto my flatbed cart before I got to the gaskets Mrs T5R was a little bit less than impressed with the $500 extra I spent on unintended heaters but the marked down on sale prices were too good to pass up on all of them. The Buddy Heater is a 1 burner that I figured would make a decent little propane heater to run in my camper that I converted to my office/Mike Cave. Expected it would keep the front room and kitchen warm. With a small fan running it keeps the entire camper warm on the low setting in the 73-75 degree range when outside temps are in the 40s. On the high setting it does the same have been dipping down into the mid 20s-30s the last few nights and it has no problem keeping the camper warm. The Big Buddy is the same as the Buddy except it has a 3rd setting and two burner plates instead of one and made MRs T5R Happy enough to get over being angry about the heater buying binge On the high setting and both burner plates going it heats the 16x46 cabin up pretty quickly on a cold morning until the wood stove is refueled and cranking out cheap BTUs. I am not a fan of 1# disposable cylinders. So I keep a good selection of gas lines to hook the things set up for 1# cylinders into my 20#-150# tanks. I have an abundance of 20 pounders like 20 exchange tanks, four 100# and three 150# that I run on the Chuck Wagon. During the winter they all get used for Propane heaters and the gas lights. RK I noted also sells 12' hoses that fit the Buddy Heaters and hook to the bigger tanks. You Do NOT have to hook two hoses and two tanks or build a hose with a Y to hood into both propane ports on the Big Buddy. One hose and Tank into the right port (Facing it) does the job. Anyway I have a Narrow propane tank shed built beside the Cabin that holds the seven 100-150# tanks and them all jumped together on a main line with quick connects. The main line comes into the Cabin and feeds a hub of 4 quick connects that various things can be connected to...... like the propane stove, some indoor propane lights etc and the Big Buddy fit right into the mix. When one tank on the line runs dry, just go outside and open the door and turn it off, put the empty tag on it and spin the knob on the next one in line. Have yet to empty all 7 tanks over the course of a winter. Came close to emptying the last one last spring with the cold that just kept going. But still had all of the full 20pound tanks in reserve. I don't remember exactly what I paid for them but am thinking the Buddy was like $80 and the Big Buddy was $120 ish with the Black Friday sale. The overhead garage heater was 50% off and is 240 electric I know it was $69.99 because I have 3 of them already that I paid regular price for a few years back. I use them in the Chuck Wagon, my woodshop, the warehouse and now have one to mount in the Commercial Kitchen. Even at regular prices they are cheap and make a lot of heat BUT they are electric hogs on the high setting and there was the one that caught on fire inside, Looked like the thermostat and on off switch connected to it malfunctioned and shorted the entire thing out and the little wires ignited and then the big wires followed suit. No damage and RK replaced it no questions asked. All encased in steel so little to no chance of a fire spreading beyond the inside of it. The other two have worked well and without incident. I prefer gas or wood heat but there are some places I just won't risk a open flame. LOL if a barrel of gas springs a leak in the warehouse a lot lower odds of the electric heater making a big ball of fire than a wood stove or a propane job A LOT of propane things should never be used indoors. The Buddy Heaters are not among them, they are indoor safe and don't require any special venting. I get 5 days burn time on a 20# tank on the low setting in the camper and the Big Buddy (Hooked a 20 up to it to test gas use) gets the same on low and 2 1/2 days on high and 3-3.5 days on medium. A whole lot better and just as warm as the previous heater that burned through 20 pounds on low in 1 1/2 days. And the Big Buddy heats just as well. The previous heater to its credit on its high setting would take it from 40 degrees to 80 degrees in the cabin in about 5 minutes, at a huge propane cost. The Buddy takes about 30 minutes to go from 40 to 70 on high and then maintains it on medium or low. I totally expected to not be impressed with these little heaters and have found myself being really impressed with both the heat they make and the fuel efficiency they have in making that heat. A small fan for circulation is a must as they are a radiant heater. I just use little 12 volt fans in that camper hooked into the batteries the solar panels keep charged and the ceiling fans in the cabin. LOL the camper has a RV furnace that as soon as you turn it one it feels like the two 20 pound tanks go empty instantly LOL makes and blows a lot of heat fast but is a total gas hog. Anyway thought I would share my experience with the Buddy and Big Buddy Heaters here since they have proven to be very good little heaters.