Converting from 12vdc to 230vac and back to 36vdc is extremely inefficient.
Unless you have excess energy to literally burn, you'd be better off getting a 12v to 36v boost converter. You'll possibly find the manufacturer even sells a correctly sized boost converter.
If you're buying an inverter that needs a 10A circuit breaker installed on the AC side, then legally this must be installed by an electrician and include appropriate earth/neutral protection.
If you're buying an inverter with a 3pin AC socket on it, then these use a isolated IT earthing system and do not need an add