Gas Kiln Firing (Crafts (Hardcover Ritchie Unlimited))
Have you read the headlines lately? We are facing a fuel shortage come winter and fuel costs are predicted to skyrocket. Combustion efficiency means getting all the heat from the fuel that you have paid for. If you are a ceramist, getting the most heat from your fuel could mean survival of the craft. If you are a homeowner, it could keep you from converting to pauper or from becoming a Popsicle. ISBN 0939656175 contains the needed information for checking combustion efficiency the way the pros do, and it also checks  fuel oil and propane. Gas still burns the way it did 30 years ago, it just costs more.