Understanding Modern Heating Technology

When it comes to home comfort during those bitter Illinois winters, two-stage heating systems have revolutionized the way we think about temperature control and efficiency. At R. H. Witt, we regularly encounter homeowners in Glenview and surrounding areas who are curious about this advanced heating technology.

What Is Two-Stage Heating?

A two-stage furnace operates at two different levels:
• High fire (100% capacity)
• Low fire (typically 65% capacity)

Unlike traditional single-stage systems that only run at full blast, two-stage furnaces can operate at the lower setting for about 80% of the time, providing several benefits:

• Improved temperature consistency
• Reduced energy consumption
• Lower operating noise
• Better humidity control
• Extended equipment lifespan

Energy Savings Breakdown

The efficiency gains come from:
1. Reduced cycling frequency
2. Lower average fuel consumption
3. More consistent operation temperatures
4. Less heat loss during operation

Regional Considerations

In areas like Northbrook and Highland Park, where winter temperatures frequently drop below freezing, two-stage heating systems prove particularly valuable. The ability to run at a lower capacity during mild cold and switch to full power during extreme weather provides optimal comfort and efficiency.

Maintenance Requirements

Two-stage systems require professional maintenance to ensure both stages operate correctly. Regular inspections should include:
• Thermostat calibration
• Burner inspection
• Heat exchanger examination
• Control board testing
• Filter replacement

Understanding these technical aspects helps homeowners make informed decisions about their heating systems, ultimately leading to better comfort and energy efficiency in their homes.