Looks like a good start. I am planning to use similar ideas for heat. I plan on using a solar hydronic system to heat water which in turn heats the ground. The water used to store heat for the solar heat is also heated by a rocket stove. The stove then heats the air and water. I am working on a waste oil and/or wood pellet fire unit to give longer run times. I have not implemented this yet, but it seems like a great idea!