

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ADEMCO INC RTH111B1024/E1 is a basic digital heat and cool thermostat designed for straightforward residential temperature control. It features a one-piece vertical form factor built to drop in where standard manual thermostats currently sit, reducing retrofit labor. Soft-touch buttons provide simple setpoint adjustments without mechanical switches. Temperature accuracy is rated at plus or minus 1 degree F, giving homeowners and technicians reliable readings without the drift common in older bimetal designs. This thermostat is compatible with heat pump systems that do not use auxiliary heat, making it a practical choice for single-stage heat pump installations.
The RTH111B1024/E1 is intended for residential heating and cooling applications where a no-frills digital control is preferred over programmable or smart thermostat options. Its vertical profile and compact footprint make it especially useful as a direct upgrade from legacy manual slide or dial thermostats, minimizing wall patching during changeouts. HVAC technicians and service contractors will find it a reliable stock item for standard single-stage system calls.
Designed as an OEM-style replacement digital thermostat for residential single-stage heat and cool systems, including heat pump systems without auxiliary heat.
Installation should be performed by a licensed HVAC technician in accordance with local mechanical codes. Power down the system at the air handler or furnace disconnect and at the breaker before removing the existing thermostat. Confirm low-voltage wiring configuration before terminating leads to the new sub-base. Follow the manufacturer wiring diagram included with the unit to ensure correct terminal assignments.
Thanks for subscribing!
This email has been registered!