I had the same shocking realization - there are EIGHT 120V receptacles on a Catalina 36. I'm never more than six feet from one. Not a single factory-installed 12-volt DC, but I can use an electric shaver in the head. Why anyone would shave with anything on a boat is a different question. Now if only someone would come up with a good, standard 12V DC plug rather than the silly "cigarette lighter" thing. //End Rant//I don't think you are missing anything, Greg. Like you, we have no need for an inverter on the boat. That being said, I was very surprised to realize after I bought my boat, that there wasn't a single 12v outlet on the boat. There were a half dozen 120v outlets, but no inverter. Apparently, Catalina assumed I would be living at the dock, plugged into shore power. My first project was to install three 12v outlets at various places on the boat.
Here is my 12 Volt source, USB charger, portable dingy pump power source, emergency engine Start battery, 12 VDC battery charger, emergency light, etc.Now if only someone would come up with a good, standard 12V DC plug
That is a really cool idea.Dom, It's an Igloo.. 14"x12"x9". Quick bracketed to the top of the gimbaled stove will allow it to make ice while carrying a small heel...
Thanks DLThe manual says 120 watts or 2 amps. https://www.nostalgiaproducts.com/user-manuals/igloo/ICEB26BK_WL_TRI_IM_BW.pdf
When I rewired my boat, I made sure to have 2 - 12V plugs that are each a separate 20A circuit, 12 gauge wire, less than 2' long.I'm not the OP on this thread, but it has answered some of the questions I've had. Installing an inverter has finally reached the top half of the boat improvement list. One question I had was how large an inverter I would need. This discussion has led me to believe I need a much smaller inverter than I was considering. We don't use hair dryers, micro waves, TVs or other high draw electrical devices. We do use cordless tools that will need to be charged, an electric toothbrush, and a computer, all need 120v but less than 150 watts. With the addition of the ice maker this summer, will need AC for that.
Tomorrow a 150 watt pure sine wave inverter will arrive that should meet my needs. It has a 12v plug and can be hard wired, which it will be.
Thanks for sharing your thoughts!
12,000W at 12V...?I installed a BIG ONE..lol 12,000. watt inverter. You say why so big.. I wanted to never be bothered with "OH god I need to stop to figure out what I need to shout off to let me run the hair dryer or oop's I'm I overloading a thing.. So far no problems running AC, Refrigerator, Microwave, coffee pot computers etc. Heck.. I could even light up the town...LOL
In my opinion, more means the unit runs cooler and more reliable.
Only thing with a smaller inverter, the fan will run to cool it increasing 12 volt consumption.Tomorrow a 150 watt pure sine wave inverter will arrive that should meet my needs. It has a 12v plug and can be hard wired, which it will be.
Thanks for sharing your thoughts!
I had similar thoughts, so a quick web search revealed several inverters rated at 12,000 watts peak and much lower sustained. Here's one on Amazon. https://amzn.to/2RDxd7712,000W at 12V...?
12,000W/12V = 1000A X 1.15 for inverter inefficiency = 1150A load
They don't make wire large enough, without doubling it or tripling it, to even handle a 12,000W inverter. The maximum allowable ampacity on a 4/0 wire is 445A.. 4/0 wire is close to garden hose size.
Are you sure you don't have a 1200W inverter?