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White rectangular digital thermostat with LCD screen and buttons

Honeywell

Honeywell RTH2300B1038E1 Digital Non-Programmable Thermostat

SKU CH-79FD-2QHNX MPN RTH2300B1038E1

Digital non-programmable thermostat with easy-read display and precise comfort control for low-voltage heating and cooling systems

  • Easy comfort control with precise digital accuracy
  • Retains your set temperature during power outages
  • Simple battery access for quick maintenance
  • Compatible with low-voltage and millivolt systems
  • Straightforward installation for heating and cooling setups

Non-Programmable Digital Thermostat

The Honeywell RTH2300B1038E1 provides straightforward temperature control for homes with low-voltage heating and cooling systems. It supports millivolt configurations and heat pumps that do not require auxiliary heat. The unit is not compatible with 120 to 240 volt electric baseboard heat. Installation is designed to be simple for most users.

Wall-Mount Build with Battery Backup

A clear digital display shows the current setpoint at a glance. The thermostat retains its programmed temperature during a power outage, avoiding the need to reconfigure settings. Batteries can be replaced from the front without removing the device from the wall. Wiring terminals accommodate standard low-voltage system connections.

Low-Voltage Operation and Quiet Running

Because the thermostat draws minimal power from the control circuit, it adds negligible load to the transformer. No moving parts or fans are present, so operation is completely silent. The solid-state design contributes to consistent accuracy over time. Power consumption remains low during normal heating or cooling cycles.

How it compares

Measured against everything we stock in NVR & DVR Recording Systems, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 96% of the 246 comparable items (median $272.99).

Specifications

Size & build
Shipping weight0.91 kg
Package size203 × 165 × 64 mm

Questions about this item

Does the Honeywell RTH2300B1038E1 thermostat support 120-240V electric baseboard heating systems?

No, this thermostat does not work with electric baseboard heat rated at 120-240V. It is designed for low-voltage heating and cooling systems including millivolt and heat pumps without auxiliary heat.

What wiring terminals are required to mount the Honeywell RTH2300B1038E1 thermostat?

This unit fits standard low-voltage wiring terminals used by millivolt systems and heat pumps without auxiliary heat. It does not support line-voltage connections such as 120-240V electric baseboard heat.

How is the Honeywell RTH2300B1038E1 thermostat installed and what step is commonly missed?

Install by connecting the low-voltage wires to the matching terminals, insert batteries for backup, then mount the unit. A common mistake is attempting to wire it to 120-240V electric baseboard circuits which are not supported.

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