Inverter/12volt-24 volt question

DIVE2XS wrote:
Thanks for your responses. My original intent was to utilize what I already have to both keep the cost down and investigate a design a system for a future RV.
The Tundra is a 2000 watt inverter. Not sure but I think it is a modified wave.
My friend did all the wiring and set up for this system. He did so using the 2-6 volt Trojan batteries and it didn't work. I replaced all the electrical outlets on the 20 amp circuit thinking that I had a short. Didn't work.
I installed switches to isolate the inverter from the shore power.
You most likely saw in my signature the I have a 100 watt solar on my rig. I don't think that I used it maybe more than a few times. It doesn't put out enough energy with the 2 50 watt panels.
I would like to learn more on what I can do with my 2 6 volt batteries even if I have to get another inverter.
For the time being, I don't need the solar. I would like to be able to run 2 CPAP machines at night. I want to run the refrigerator while driving instead of using the propane. Most likely I could charge the batteries while driving from place to place.
Is a 2000 watt inverter large enough to run that 20 amp circuit?
Any ideas would be appreciated.
Thanks

Well, you’d have to do somewhat of a redesign just to be able to utilize the 24v inverter, so if it were me I’d simply stick with the two 6v batteries (in series to arrive at 12v) and get a decent pure sine wave inverter…A 2000w inverter could provide approximately 16 or so amps, so if wired into an existing circuit you’d want to avoid exceeding that amount (e.g. by avoiding simultaneous multiple large appliances…). I doubt your CPAC approaches that amount, but your refer may well (??)…One other thing to remember with 12v dc is to make sure your inverter cables are sized correctly for the particular load (AWG Gauge and round trip to inverter cable lengths) - this should not be assumed or overlooked…

3 tons