For years at my camp I have used a Magic Chef 3 burner RV stove. The burners are a little tight and the surface oven vent prevents using large pans. Now that I am spending more time there it was time to move up. I obtained a 2006 Maytag MGS5770 gas stove. When new this retailed about $1300 . As a stove it is prety generic but it has very large burner plates which I liked. It is natural gas and would have to be converted to propane. The question was coule it be converted to 12V. I have a small 400W inverter that I could dedicate to it and the surface burner igniter module worked fine with it. I would only need to wire the burner switches to a double pole relay to turn on the inverter and switch it to the igniter module. Everything fine so far.
Next I looked at the control module. There were five 24V relays and a 3W resistor that powered the microprocessor. Only two of the relays would actually be used, the cabinet fan and the oven valve. I could easily drive a FET when the fan was changed to a 12V computer type and a 12V relay to operate the oven valve. A $2 2596 regulator module from China could power the micro and a few diodes and caps on the output pin of the chip would provide enough voltage for the fluorescent display. It would be nice to have a night light in the kitchen.
Now I just needed to get the oven igniter to work. I mesured the resistance and it was about 200 ohms. OK, 50W but I could live with that. I powered it up on my 400W inverter, set the temp, ant it immediately went into overload. Then I powered up the generator and it drew 12,5A at 120V. The ignightor didn't seem that bright. Disconnected the fan, oven light and electric broiler element. Yup, they turn on the broiler to get it up to temp fast. Now the current was 3.5A @ 120. 420W is a goodpart of my solar output and ovens are used generally later in the day. I never did check if the gas broiler valve turned on at the same time. Didn't need to. 200W just to run an oven was still out of the question. Wonder how 200 ohms draws 3.5A? These glow plugs are connected in series with the gas valve. As they heat up the ceramic decreases in resistance. When they draw enough current the gas valve opens up. This prevents gas build up before the heating element gets up to temp. By the way these elements do age. The broiler element was closer to 300 ohms.
Bottom line, this stove is going on craigs list and the search goes on.
