The installation of my Xtreme heater was a breeze. Literally a tape measurer, screw driver and four screws is all that it took to install the heater. I chose my 600 watt Xtreme Heater because of its compact design and good looks. I like that the Xtreme Heater can safely remain in its place year round and not be a hindrance when I need to do maintenance. I wanted to maximize the boating season and with this product I feel confident staying in the water until December. This adds a month to my boating season each year. The cost of the heater will be recouped after the first year in storage fees alone! Thank you, Pat B Chesapeake Bay With confidence I’m looking forward to a safe and warm 2011 winter boat season! I did not want to worry about cold weather problems in the engine compartment.