Thermwell AC11H Indoor Ac Cover 2 Piece Large 20x28 in

Product Description

The THERMWELL AC11H is a two-piece quilted indoor air conditioning cover designed to seal and protect window or through-wall AC units during the off-season. The set includes a plastic liner that blocks cold air drafts at the unit opening and a decorative fabric outer cover that fits over it. Both pieces work together to reduce heat loss and keep interior spaces more comfortable when the unit is not in use. The fabric cover is machine washable for easy maintenance. Fits units measuring up to 20 inches high by 28 inches wide.

This cover is suited for residential applications where window or through-wall air conditioning units are left in place during colder months. HVAC service technicians, property managers, and knowledgeable homeowners install this type of cover as a seasonal energy-saving measure. The two-piece design makes installation and removal straightforward without requiring tools.

Key Features

• Two-piece system: plastic draft-blocking liner plus decorative quilted fabric outer cover
• Fits AC units up to 20 inches x 28 inches
• Plastic liner seals against cold air infiltration
• Machine washable fabric cover for easy cleaning and reuse
• Quilted construction adds a finished, decorative appearance

Compatibility

Designed as an OEM-style seasonal cover for residential window and through-wall air conditioning units measuring up to 20 inches high by 28 inches wide.

Installation Notes

Installation does not require tools and is typically performed by a homeowner or HVAC technician at the start of the heating season. Power down and unplug the air conditioning unit before applying the cover. Ensure the unit face is clean and dry before fitting the plastic liner to achieve a proper draft seal. Remove and store the cover before restarting the AC unit in the spring.