Upgrade your climate control with the Braeburn® 4020, a versatile and reliable thermostat designed for a wide range of heating systems. Engineered for ease of use and lasting performance, this thermostat offers advanced features in a sleek, compact design.

Key Features:

• Universal Compatibility: Works with low voltage single-stage gas, oil, electric, and hydronic heating systems, as well as 250mv–750mv millivolt systems and 2- or 3-wire hydronic zone systems.

• Dual Power Options: Operates on 24V AC or two AA alkaline batteries (3.0V DC).

• Power Failure Protection: Retains all settings—even during a power outage—thanks to permanent non-volatile memory.

• Precision Temperature Control: Adjustable between 45°F and 90°F (7°C to 32°C) with an accuracy of ±1°F (±0.5°C).

• Bright Blue Backlit Display: Clear, easy-to-read screen with adjustable lighting.

• Flexible Installation: Separate sub-base for simplified mounting and setup.

• Secure Settings: Multi-level keypad lockout for installer and user settings.

• Smart Features: Includes Adaptive Recovery Mode (ARM™) for optimal temperature recovery and energy efficiency.

• Sensor Ready: Compatible with indoor remote and slab sensors, with support for freeze protection and high/low floor limits.

• Durable Performance: Operates in humidity ranges from 5% to 95% relative humidity.

Whether you're installing a new system or upgrading an existing one, the Braeburn® 4020 is built to deliver dependable comfort and control for years to come.

Features

• Non-Programmable
• Large Display with Adjustable Backlight
• Minimum Boiler on Time
• Freeze Protection
• High/Low Floor Limits
• Remote Floor/Slab Sensing*
• SmartLimit® Temperature Limits
• Indoor or Outdoor Remote Sensing*
• SpeedSet® Programming Mode
• Hardwire or Battery Powered
• User and Installer Lock Modes
• Adaptive Recovery Mode (ARM )
• Temporary Override Limits
• Compatible with 2 or 3 Wire Hydronic Zone Systems
* Separate remote sensor required.