Hey there trying to wire a themostat to a newmac wg-100 wood/coal furance I live in what use to be a duplex home, converted into one living area. Theromostats are summaire 1 upstairs has red white green and black wires, down stairs has black and white wires. The furnace has a fan draft on it, whitch therm to use and where do I hook up the wires. Sorry about the spelling.
