Webasto A18 BlueCool A-Series Slimline Air Handler – 18,000 BTU – 230V

Cabins with a narrow, tall installation bay needing a full 18,000 BTU of cooling get their match in the Webasto A18 Slimline Air Handler, delivering the largest single-blower capacity in the A-Series lineup within a vertical chassis built for tight width constraints. This narrow bay large cabin unit stands 26.2 inches tall but just 8.60 inches wide.

At this capacity, the slimline configuration solves a real installation problem for bigger cabins: a room genuinely needing 18,000 BTU often can’t spare the floor footprint a standard compact handler demands, and this vertical chassis delivers the same output by using height instead of width — fitting behind a bulkhead or in a tall, narrow closet space.

Why Choose the Webasto A18 Slimline

This unit carries Webasto’s standard 2-year warranty. If your cabin needs 18,000 BTU of cooling but the installation space is tall and narrow rather than wide and shallow, this is the largest slimline option Webasto offers in the single-blower A-Series range.

What to Know Before Installing

• A Webasto A-Series Cabin Control Kit is required for installation — this listing is the air handler only
• Measure your installation bay carefully — at 26.2″ tall and only 8.60″ wide, this is the tallest slimline unit in the A-Series lineup
• This handler requires a matching Webasto chiller (C-Series, V-Series, or VX-Series) as the central cooling source
• Can be extended with an EHM1200W or EHM1800W electric heat module and flow control valve for independent cabin heating