The 30D has two warm air outlets, each of these can be fitted with warm air tubes up to 8 meters long and can have a second outlet branched from them offering four outlets in total. The 30D can be operated using the standard control panel offering indication lights giving status and simple diagnostics, a heat-vent and off switch and steeples power adjustment. The more advanced option is the Info Control Panel this offers a once on and off timer, cabin thermostat, power and fuel consumption, operating hours, operating status, service advice and battery voltage etc. This heater is ideal for installation within the cabin of the boat because of its quiet operation and it pulls the air to be heated from the surrounding area.