In the April issue of Woodworker’s Journal, Sandor Nagyszalanczy offered some cool tips for keeping your shop warm during the winter months.
He has also provided some links for information on helping you know your shop’s conditions.
–This Slant/Fin Android and iOS app will help you calculate your BTU needs.
-The U.S. Energy Information Administration has a spreadsheet available to help you compare fuels and heat sources in terms of their output and prices.