To replace your Dometic Brisk II with a Furrion Chill Cube on your 38’ Forest River Cherokee bunkhouse (30 amp, single A/C setup), you will need a Furrion Chill Cube rooftop unit available in 13.5K, 15K, or 18K BTU sizes. Since your RV has a ducted system, a compatible Furrion ducted air distribution box is required. The Furrion system also requires its own wall thermostat and controller, as your current Dometic thermostat will not be compatible. Wiring adaptations are necessary due to different connectors and control logic; professional installation is recommended if you're not comfortable with 12V/120V wiring.

Regarding startup current draw, Furrion Chill Cube units are designed for improved efficiency and have a lower startup surge than many older air conditioners. However, a 15K or 18K unit still draws significant current at startup, so avoid running other high-draw appliances simultaneously on your 30 amp service to prevent overloads. Using a compatible soft start device such as SoftStartRV or Micro-Air EasyStart is highly recommended. These devices can reduce the startup surge by up to 70%, helping protect your generator and allowing smoother operation during camping off-grid.