The engine compartment on my boat is small and jam packed full of everything. Space was very limited as to where I could locate the heater without blocking the intake or exhaust ports. The best place I found was high up on the stern (port side) angled down towards the starboard outdrive. Even with removing the alternator and various other parts, I’m still not sure how I fit back there.
I installed two of your Xtreme heaters in my 2005 Monterey 250CR cabin cruiser
The Xtreme Heater and its customer service surpass any company I have dealt with in a very long time