yes
I can get the pilot to stay lit
Gas stoves require that the pilot light is lit on the oven because otherwise it would just be leaking gas.
Gas ovens usually use one of the surface burners as an exhaust for the oven, therefore the surface burners (usually just one) get hot durng the use of the oven.
They are toxic if you turn on the gas and leave it on without lighting the burners. The gas that escapes is toxic and can be fatal if you breathe it for any length of time. You should always light the burners if you turn on the gas.
On a gas stove or oven the flash tubes are the means of connecting the pilot light. The flash tubes carry the flame from the pilot light to the individual burners.
Oven cleaner, But replacements are not costly.
No. The oven has a vent already. It is probably under one of the back burners.
The Bertazzoni Professional Series rangeis. It has gas stove with 6 burners, double oven, and griddle.
a convection oven is really no different than a "normal" oven with the exception of a fan to circulate air to even out the temperature gradiant zones. As a result, the air blowing around is a little hotter than stagnant air. Set the temperature 25 degrees cooler than your recipe calls for.
The light in the oven
It depends on several factors. Did you preheat? If so then the top is is your best bet. If not then the bottom will get the benefit of the burners firing off more often until the oven is heated to the desired temperature. Of course if your oven is poorly insulated and requires the burners to fire quite often then the bottom is probably still your best bet.
The Bertazzoni Heritage Series gas range with six burners and double oven can easily hold 2.
I have used both and gas burners do work a little better in my opinion. You can find a used one on www.ebay.com or www.craigslist.org or you can check your local home improvement store.