The thermostat connections on the back panel of the Stoker Control are .25 inch male quick connect terminals. The mating connectors (supplied) should be .25 inch female quick connector terminals. The wire should be no smaller than 22 gauge.
The thermostat connections should only be connected across the thermostat switch inside the thermostat unit. This switch is the type which opens (turns off) when the set point temperature is reached, and closes (turns on) when the room temperature falls below the temperature. (This is the type supplied with the unit.
on the Thermostat
1. Loosen screw terminals, insert wires into terminal block, then re-tighten screws.
2. Push excess wire back into the wall opening.
3. Plug the wall opening with nonflammable insulation to prevent drafts from affecting thermostat operation.
R & Rc terminals (T87N)
In single-transformer system, leave metal jumper in place between R & Rc
. Remove metal jumper if two-transformer system.
Heat pump systems (T87N)
If wiring to a heat pump, use a small piece of wire (not supplied) to connect terminals W and Y.
Use 18-gauge thermostat wire. Shielded cable is not required.
Terminal Designations—T87NW Heat relay.
Y Compressor contactor.
G Fan relay.
O Heat pump changeover valve energized in cooling.
Rc Cooling power. Connect to secondary side of cooling system transformer.R Heating power. Connect to secondary side of heating system transformer.
B Heat pump changeover valve energized in heating.
hope this helps
i use a hunter model 42999b works great and there cheap get them at wally world IRC cost was around 20 bucks i hve 2 of them one on my gas heat in garage and one on the stoker http://www.hunterair.com/product/just-r ... t-b-42999B