Sancho is a Spanish name and it means Saint. In slang it means the other man, a guy a girl is cheating with. Sancho means sancho in English as well as Spanish. Pearl Yamada.
The general rule of thumb for a horizontal smoker is that the firebox should be 1/3 the size (volume) of the cooking chamber. These are just guidelines based on years building smokers but your mileage may vary! Cooker Chamber Type & Size.
According to the postal service recommendations web site The Federal Highway Administration (FHWA) has determined that mailbox supports no larger than 4 inches by 4 inches, or a 2 inch diameter standard steel or aluminum pipe, buried no more than 24 inches, should safely break away if struck by a vehicle.