The Lennox 29U51 Honeywell TH1100U4000/U FocusPRO N100 non-programmable thermostat is a simple and reliable temperature control solution for residential and light commercial HVAC systems. Designed for 1 heat 1 cool applications, this thermostat delivers straightforward operation with easy-to-read digital display and precise temperature control. It is ideal for homeowners, property managers, and contractors who want dependable performance without complex programming.

The FocusPRO N100 series is known for its durability and user-friendly interface. Large buttons and a clear screen make temperature adjustments quick and intuitive, while the non-programmable design helps reduce setup time and prevents accidental schedule changes. This thermostat is commonly used as a direct replacement for older Honeywell and Lennox thermostats in conventional heating and cooling systems.

Built for compatibility with standard low-voltage HVAC equipment, the Lennox 29U51 is a practical choice for system replacements, repairs, or new installations where simplicity and reliability are required.

 

Key features:

Non-programmable digital thermostat
1 heat 1 cool conventional system compatibility
Large, easy-to-read display
Simple push-button operation
Reliable Honeywell FocusPRO series design
Ideal for residential and light commercial use
Direct replacement option for many existing thermostats

Typical applications:
Gas, oil, or electric furnaces
Central air conditioning systems
Residential homes, apartments, and light commercial spaces