B-COOL 12RM Dual Fan | 12V & 24V DC Powered Roof Mount Air Conditioner

The B-COOL 12RM Dual Fan is the most fully-featured rooftop no-idle air conditioner in the B-COOL lineup. Powered by 12V or 24V DC, it runs entirely off your battery system with no engine idling, no shore power, and no generator — and it comes loaded with operating modes, dual fans, a drier bottle, and an optional Hybrid Control Panel that no other rooftop unit in our lineup offers. At 400 m³/h airflow and 99 lbs, the 12RM Dual Fan is built for large cab spaces — semi trucks, sleeper cabs, heavy equipment, and any application where maximum features and high airflow are the priority. It draws between 35 and 85A at 12V, giving fleet managers and owner-operators the most capable DC-powered rooftop AC we make. No engine idling. No shore power. No generator. The 12RM Dual Fan runs entirely off your 12V or 24V DC battery system — keeping operators cool, comfortable, and compliant with anti-idling regulations without burning a drop of fuel.