These thermostats are suitable for use with furnaces and hydronic These thermostats are suitable for use with furnaces and hydronic heating systems (boilers) in which the house does not have central air conditioning. This would include oil and gas-fired systems, forced hot air, steam heating systems, and forced hot water systems. To install you will need to have available a Philips head and/or flat head screwdriver. If you are not confident in your ability to install a programmable thermostat, consult with a qualified HVAC company.
