I heat with coal burned in a stove in my livingroom from mid fall to early spring. I also have an oil fired furnace that delivers hot air to the basement and to the upstairs living area of my one story ranch house via ductwork and registers. The furnace is controled by one thermostat located upstairs.
Some of the basement registers can be closed and all of the upstairs registers can be closed. None of the registers close off all of the air flow due to the design and construction of these units. Not that they are defective, just the normal, crude in floor registers.
What I would like to do is use my upstairs thermostat to control the furnace from early spring to mid fall. At those times of the year I would like to shut off all basement registers so that no heat is delivered to the basement, and open all of the upstairs registers so that all of the heat is delivered upstairs.
In the mid fall to early spring heating season when I am heating with my upstairs coal stove, I would like to have a basement thermostat control the furnace. At this time of year I would like to close off the heat going to the upstairs and have it all exit the registers in the basement.
I need help in designing thermostat controls and heat duct regulating. I have some thoughts and many questions about how to best go about this.
I would like to have two thermostats located upstairs. One regular thermostat like I have now, and one that senses and displays the basement temperature but can be read and set from upstairs.
Question: Would using two thermostats require an A-B switch to manualy switch from the upstairs thermostat to the basement thermostat, or would I just turn one thermostat off and the other to the desired temp.?
If registers are made that close off nearly all of the air flow when desired are available, that would probably cheaper for me than completely reconstructing the ductwork near the furnace to occomodate splitting the ductwork into two zones (upstairs and basement) and putting some kind of single shut off in each zone ductwork. However I would do whatever I need to do to make the system most effective.
Question: What devises are available to accomplish my goal of being able to divert heat to only basement or only upstairs or both?
Question: Are there solutions to my goal of heating just upstairs or just basement seasonaly that I have not considered?
I consider myself to be an advanced do-it-yourselfer with things mechanical and electrical, but have very limited experience with oil furnaces and their controls.
Your input, instructions, or ideas would be greatly appreciated.