Oven temp reange
It depends on how the control used on it was designed and whether the appliance is gas or electric.
Generally, a gas range thermostat will usually have a much narrower on/off temperature differential. For an electric ranges, a 50°F differential may be normal especially for an older model whose control may no longer be working 100%.
The Appliance Information Site
[This message has been edited by DanO (edited January 30, 2004).]