Felt has to be installed indoors.

For pleasure skating, rinks have been installed indoors at resorts and entertainment venues while newer installations are being made outdoors.

(Sometimes it is more convenient and economical to route wiring outdoors even though it links outlets installed indoors.)

Clay courts are installed indoors with underground watering systems.

Meanwhile, a considerable number and variety of pieces have been installed on the grounds and indoors at the Longhouse Foundaton for their first public showing.

The chief drawback of adhesive-backed weatherstripping is that it has to be installed indoors, where it may be visible.

It was installed indoors in the Henry Ford Museum in 2001 with a full exhibit.

EZ-Glide 350 is an artificial ice-skating surface that can be installed indoors or out.

These models could be installed indoors or outdoors.

The package systems require electricity but are self-contained and can be installed indoors.