Many questions and the best I can answer:
1. My battery bank is 410ah plus dedicated starter.
2. I currently use a 30 amp charger
but plan to experiment
with a 70 amp which the Honda 2000 can handle.
3. The outside night temp in my A/C test started at 88F and dropped to 82F in the morning. South FL is hot in late June.
4. The Honda 2000 runs in Eco mode so when the A/C cycles off the Honda slows to idle.
5. A 3 week cruise
is hard to predict but the Honda fuel consumption
is about one gallon per 4 hrs under full load. Hot water takes less then 30 minutes for my 6 gal hot water tank. A/C running for 4hrs with compressor
on full time takes one gallon of gas. Batteries at 75% discharge takes about 3-4 hours to recharge with my 30 amp charger but the Honda rpm
and load is quite low in Eco mode, do not know the fuel consumption
. Clearly the dominate fuel consumption is use of the A/C.
6. The project
was designed for anchorage power. The Honda wet exhaust outlet is on the starboard side 8" above the water line and a heavy heal on that side might submerge the outlet and create too much back pressure on the Honda exhaust.
7. The container sound box measures about W=20", H=21", L=30" or 7.3 cubic feet, the rest of the hardware
takes little space.
8. Hours to install were many primarily spent on custom building the sound box in pieces to be re-assembled in the very tight cockpit
stern lazarette and the many hours designing and brazing the wet exhaust muffler
. It was a 3 month project on the weekends and a lot of trial and error.
9. I do not know the specific ABYC standards for storage of gasoline but I store the 5 gallon gas tank for the Honda in the stern swim platform storage area for the Catalina
375 which is a completely segregated area from the rest of the boat and designed by Catalina
for fuel container storage. When cruising I store extra 5 gal cans tied to the fore deck
along with extra diesel
I am also looking at the propane
conversion kits available for the Honda to us as a fuel which could also be stored in this same stern compartment area in lieu of gasoline. A 20# propane
tank is about the same energy fuel for 5 gallons of gasoline. This conversion would be simple to make to my design.