scope:

This guideline applies to the inspection of induced draft furnace heat exchangers.

Purpose. The purpose of this guideline is to outline a test procedure for the inspection of induced draft furnace heat exchangers.

Intent. This guideline is intended for the guidance of the industry, including gas utility companies, government authorities, manufacturers, engineers, building inspectors, building code officials, installers, and contractors.

Review and Amendment. This guideline is subject to review and amendment.