I have this connected to my 250 gallon propane tank. It comes with a 1/2 inch male quick connect for propane hose, so fittings on a longer propane hose if you need one would need a female 1/2 inch quick connect fitting. It comes with a hose for portable tanks. All works perfectly so far. Ran it break in period with no load on it for 5 hours then changed the oil. Oil change was easy. It will easily handle the 7000+ watt load we put on it while running the cloths dryer, computers, tv and lights in the house. It will handle up to about 5000 watts running on the quieter eco mode without bogging down. No hiccups so far. Electric start fires it right up and it purrs along nicely. The included battery tender keeps the battery charged to run the LCD display and electric start but isn't necessary as the recoil pull will start the generator even if the battery is dead. The display center reports hours is has currently been running AND total accumulated hours the Generator has on it. Voltage output and Load it is handling is also displayed. Safe to say I am happy with it! I should add that this generator is neutral bonded to frame which is good for stand alone use. If it is connected for whole house backup where it would be grounded by the house electrical system, it needs to be unbonded at the frame which is easy as removing 6 screws from the front panel and removing the white neutral jumper wire from the panel connection and taping it up or shrink wrapping it then tuck it out of the way. I suggest getting an electrician if you are not familiar with these things.