re: CNG stove and microwave
Perhaps you mean CNG (Compressed Natural Gas)? CNG stoves can be converted to propane, it primarily involves burner orifice modification, I think. CNG availability is not as good as propane, and with CNG you're carrying high pressure cylinders on board. On the plus side it's lighter than air so leaks will dissapate rather than collect in the bilge- it's inherently a safer gas, but stored under higher pressures, and is slightly slower to cook with.
If you plan to cruise BC waters CNG may become problematic from a supply perspective.
Many boats have microwaves, however the power draw is large and requires shore power or rather large, greedy inverters.. They also take up a chunk of storage space, something often in already short supply on many boats.
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345 "FastForward"