This model has been designed to be especially user-friendly and features a simple and precise round that's been celebrated for its ease of use and precision. Mercury-free and featuring a decorative covering ring to cover surrounding wall marks, the round heat only manual thermostat is a modern classic that has earned its distinction as a top end thermostat. The CT87K Honeywell thermostat is compatible with heating only systems including: forced air (gas, oil and electric), hot water and steam, heat pumps without backup.

• Mercury-free thermostat with simple worry-free operation
• Honeywell's classic round design, worlds most popular thermostat
• Precise temperature control for heat only systems
• Classic round styling
• Decorative wall cover ring included, hides wall marks from previous thermostat

• https://assets.unilogcorp.com/187/ITEM/DOC/Honeywell_100008774_Instruction_Installation_Manual.pdf Instruction/Installation Manual
• https://assets.unilogcorp.com/187/ITEM/DOC/Honeywell_100022564_Instruction_Installation_Manual.pdf Instruction/Installation Manual
• https://assets.unilogcorp.com/187/ITEM/DOC/Honeywell_100022564_Owners_User_Manual.pdf Owners/User Manual