This does work great. The unit is easy to operate. A few hoses to put together, add the fuel and you are ready. Once turned on the unit takes about three minutes to reach full heat. Working at the fire department tonight, and we tested the C0 output. There are zero Carbon monoxide emissions from the vent. The unit is extraordinarily quiet. The exhaust coming out of the bottom is HOT!!! You will need to manage this as the exhaust could ignite a fire.