Collection: Air Conditioning

Keeping a boat cabin comfortable in summer heat takes more than a fan, and the right marine air conditioner depends heavily on your boat's electrical system and the space you need to cool. Velair dominates the self-contained unit side of this category, offering compact variable-speed inverter models from 9,000 to 21,000 BTU in 12V DC, 24V DC, 115V, and 230V configurations. The DC voltage options make the Velair i09 a practical choice for vessels that spend time away from shore power, while the 115V and 230V AC units suit marina-based or larger boats with generator capacity. Dometic's EnviroComfort retrofit kits cover a different need entirely, designed to drop into existing installations where the original unit has failed and a full replacement would mean significant cabinetry work.

Before buying, confirm your available voltage, measure the compartment the unit needs to fit into, and calculate the BTU load for your berth or cabin area. Undersizing a unit for a large, sun-exposed cabin will leave it running constantly without reaching temperature. Dometic's kits are sized from 6,000 to 16,000 BTU to match common original installations. Trident Marine's reinforced polyester hose rounds out the category for installations or service work requiring seawater intake or discharge runs. All products here are sold as an authorized dealer with full manufacturer warranty.