This manual explains in detail how the wood stove and gas or oil boiler can be integrated as a unit to automtically heat your house using the original water based heating system. If the wood stove is hot the water will circulate trough the stove and will circulate trough each zone according to the original thermostact set point request. Using this system is the same as using the boiler only supplies heat to the specific zone if requested making the system efficient. Six different electric options and the hardware layout is included. I am using this system in my house and I reduced my gas bill montly from average $500.00 to $0.00 monthly. I assembled and designed the system, and I believed anybody will be able to do the same; save money, save natural resources and have fun.