"I would like to add my name to your list of very satisfied customers. I have been heating 99% with wood in my Yukon Husky since 1989. I love having a gas backup, but with fuel prices escalating I am glad it only runs when we are not at home. I live in Southwest Michigan so we do occasionally get some REAL winter weather. I recently needed some advice concerning my furnace. My contact at Alpha is Keith Nelson, and he spent nearly an hour explaining how I can adjust and fine tune my furnace to make it even more efficient. Thank you Alpha and Keith. Keep up the good work."