Bromic Gas Valve for Cobalt Gas BH8180042Bromic Gas Valve for Cobalt Gas BH8180042 Review Do you need to change the Bromic Gas Valve for your Bromic Cobalt Gas heater? The Bromic Gas Valve BH8180042 s what you are looking for. Get it here at Flame Authority, your Trusted Dealer! The Bromic heater gas valve controls the flow of gas to Cobalt units. This would plug into the PCB control and provide automatic features such as safety shutoff. The wall bracket needs to be vertically oriented or