I have a gas stove (+ electric oven) which has one large burner, two medium burners and a small burner.
The main burner is acceptable, but the medium burners are insufficient to boil a saucepan of water in a reasonable time, even when on full. (I don't even bother with the small burner.) As a result, I can't cook a sauce on the main burner, and boil rice/potatoes/spaghetti on the back burners at the same time.
The stove is about 13 years old, but has had limited use in its life. It is pretty clean, and I don't believe the gas lines are clogged. The valve leading to the stove seems to be fully open (i.e. the knob is in a position parallel to the pipe).
Is it possible to turn up the pressure of the gas entering the stove? Is this a consumer-adjustable item (e.g. adjusting a regulator), a job for a plumber, or will I need to replace the whole stove (which isn't warranted)?