The Bromic Expansion Board is a dedicated accessory designed to extend connectivity and control capabilities for Bromic Smart-Heat On/Off and Dimmer Controllers (1-Channel and 2-Channel models). This expansion board enables hard-wired Ethernet integration for a stable, secure network connection while also providing 0–10V input terminals for seamless integration with building management systems (BMS) or third-party home automation platforms.
When installed, the expansion board allows outdoor heating systems to be controlled through commercial or residential automation infrastructure, making it ideal for hospitality venues, commercial patios, and smart home environments requiring centralized control. Power is supplied directly through the controller, eliminating the need for a separate power source, and the board mounts securely within the controller housing using the included hardware.
Note that BMS or 0–10V operation disables app-based control, allowing full authority to be transferred to the connected automation system
Note: This expansion board is not required and not compatible with Bromic 5-Channel Smart-Heat Controllers. Ethernet and 0–10V BMS functionality are already built into 5-Channel models.
Key Features
Enables hard-wired Ethernet connectivity for enhanced network reliability
Integrated 0–10V terminals for BMS and home automation system control
Designed for Bromic Smart-Heat On/Off & Dimmer Controllers (1-Channel and 2-Channel models only)
Plug-and-play internal mounting with included hardware
Powered directly through the controller; no external power supply required
Ideal for commercial, hospitality, and advanced smart home installations
Free Shipping on All Orders – We provide free standard delivery on all orders within the contiguous U.S.
Ground Shipping for Smaller Items – Accessories and lighter products ship via standard ground carriers such as FedEx, UPS, or similar.
Freight Delivery – Large items (HVAC/Heaters) ship via LTL freight. Drivers deliver to the curbside only; they cannot bring items into your home or garage.
Tracking Information – Tracking is typically provided within 3–5 business days after your order is placed.
Carrier Updates – Once tracking is issued, allow 1–2 business days for the carrier to populate shipment details.
The expansion board is required if you intend to use Ethernet connectivity or 0–10V BMS control with 1-Channel or 2-Channel controllers. These features are built into Bromic 5-Channel controllers and do not require an expansion board.
Can I still use the Bromic app if I connect the expansion board to BMS or 0–10V control?
No. Once BMS or 0–10V control is activated, app functionality is disabled and the heater is controlled exclusively through the connected automation or management system.
Does the expansion board require its own power source?
No. The expansion board installs directly inside the controller and receives power from the controller itself. No additional power supply is required.