Type: Gas Fired Boiler System - Low Voltage
Number of Thermostat Wires: 2 or 3
Voltage: 24 Volts AC
System Attributes: Hot water boiler for radiant heat or baseboard hydronic systems
Type: Oil Fired Boiler System - Low or High Voltage
Number of Thermostat Wires: 2 or 3
Voltage: 24 Volts AC or 120 Volts AC
System Attributes: Hot water boiler for radiant heat or baseboard hydronic systems
Type: Electric Boiler System - Low Voltage
Number of Thermostat Wires: 2 or 3
Voltage: 24 Volts AC
System Attributes: Hot water boiler for radiant heat or baseboard hydronic systems
Type: Oil Fired Furnace System - Low Voltage
Number of Thermostat Wires: 2; with air conditioning 4 or 5
Voltage: 24 Volts AC
System Attributes: Forced air furnace
