This thing is a beast I have traveled across the country and used this in both weather extremes. I have been in Texas, Arizona, south Florida during summer; as well as, Alaska, North Dakota, Vermont in the winter. Between +120 to -10 degrees!!!! The modifications installed made living comfortably. Like two Roof AC/heat pump units both capable of 30000btus! Dometic Air Conditioners H551816AXX1C0 Blizzard Nxt Hp 15.0 Wht Upper was installed in the front. Recpro RV Air Conditioner 15K Quiet AC Unit with Heat Pump, Remote Control was installed in the back. These two combined kept the inside of the RV at 68 in the hot temperature with ease. For the cold, I upgraded the propane heater which supplies 30000btus with ease. The roof AC’s also have heat pumps the are in use until about 20-25 degrees then the propane furnace takes over. I also installed AIRSKIRTS. This was one of the best purchases!!! This is hot I beat the cold months. Easily staying 75 degrees in negative temps!!!!! AIRSKirts go under the RV to better insulate the floor. I also upgraded the tank heater and system. Never was I fighting to dump in the cold months, thank God. I also upgraded my burner stover to a full oven. I like to eat. Because I am finally settling down, I am also throwing in all my RV gear; like my Blue Ox BRK2019 Patriot 3 Brake System and Blue Ox BX7420 Class IV Avail 10,000 lb. Capacity Tow Bar with Safety Cable, Brown, etc and etc. I have so much RV gear that this is a steal.