How do the Thermostat Controls work?
The only visible addition to the heating system inside your home is the thermostat which is located near the existing thermostat. The two thermostats are installed so that if the outside wood furnace is not in operation, your existing unit will automatically take over to maintain your household temperature. The wall thermostat which regulates the heat from the outside furnace performs two functions; when it senses your need for heat according to your temperature setting, it turns the water pump on to circulate the hot water through the coil and also turns the blower on inside your central unit to force air across the hot coil; t his forces hot air into your central duct system. The outside furnace has a hot water thermostat which senses the water temperature of the unit. If the water is not as hot as the thermostat setting (normally set on 180°) then the combustion air intake is automatically opened and remains open until such temperature is attained.
