Re: Sun-Mar Composting Toilets
The specs found when selecting a model at that link say the 12-volt heater is 120 watts. That is 10 amps. If the heater ran 24/7, the maximum would be 240 amp-hours (2880 watt-hours) per day. It also notes that the models with the 12-volt option still include the standard 120 VAC heater for shoreline (or genset) use.
Someone said "Making good decisions comes from experience, experience comes from bad decisions." I say there are three kinds of people: those who learn from their mistakes, those who learn from the mistakes of others, and those who never learn.