The CT87K1004 Round Heat Only Manual Thermostat by Honeywell is a classic and reliable thermostat designed for heating-only systems. Its familiar round design and simple operation make it a popular choice for homeowners seeking straightforward temperature control without the complexity of programmable features.

Key Features

• Classic Round Design: The iconic round shape of this thermostat is not only aesthetically pleasing but also easy to use. The large, readable scale allows for precise temperature adjustments 
• Heat Only: Specifically designed for heating-only systems, including forced air (gas, oil, and electric), hot water, steam, and heat pumps without backup . Note that it is not compatible with electric baseboard heat (120-240V), heat pumps with backup, or multi-stage heating/cooling systems
• Mercury-Free: This thermostat is mercury-free, making it an environmentally friendly choice 
• Easy Installation: Comes with a decorative wall cover ring to hide any marks left by previous thermostats, and includes screws and solderless connectors for copper wires 
• Reliable Performance: Honeywell's quality ensures long-lasting performance and dependable temperature control 

Usage Instructions

1. Installation: Mount the thermostat on a wall using the provided hardware. Ensure it is placed in a central location for optimal temperature control.
2. Operation: Simply turn the dial to your desired temperature. The thermostat will maintain the set temperature by cycling the heating system on and off 
3. Maintenance: Regularly check the thermostat for dust and debris. Clean the unit periodically to ensure accurate temperature readings  

Safety Recommendations

• Placement: Install the thermostat in a central location away from direct sunlight, drafts, and heat sources to ensure accurate temperature control  
• Testing: Test the thermostat periodically to ensure it is functioning correctly. If the thermostat fails to maintain the set temperature, consult a professional  

Ideal For

• Homes: Suitable for use in living rooms, bedrooms, and hallways.
• Offices: Ideal for workspaces, conference rooms, and common areas.
• Rental Properties: Perfect for apartments, condos, and vacation rentals  

Conclusion

The CT87K1004 Round Heat Only Manual Thermostat is a dependable and user-friendly choice for anyone seeking simple and effective temperature control for heating-only systems. Its classic design, ease of use, and reliable performance make it a trusted option for maintaining comfort in your home or office