Looking out your window in the middle of winter, you begin to recall a time when you once visited a natural hot spring and thoroughly enjoyed it. You are now wanting to recreate this moment at home but do not know how or where to start. Here’s a tip. Consider building a wood-fired hot tub so you can enjoy it at home, all year round. Here are two metal components of your hot tub that may require assistance from a professional fabrication service. Heat Exchanger One of the most important metal components for your wood-fired hot tub is the coil heat exchanger....