Does anyone have the dip switch settings to change the model number to NCB-240/110H. I think the unit is oversized and I want to cut the unit back to see if I can make it use less propane. I have tried some other things but these have not helped.. Also if you have any suggestions I would appreciate them as I am learning what makes this unit run properly.. The installing contractor doesn't appear to know how the unit works so is no help with making it run most efficiently. Thanks for your help..