Listed materials used as flue linings in masonry chimneys must be installed according to what requirement?

Flue linings in masonry chimneys are critical for safety and effective operation, as they are designed to withstand high temperatures and corrosive byproducts from combustion. When it comes to installation, both the terms of their listings and the manufacturer's instructions contain essential information.

The terms of their listings typically come from certification agencies or standards organizations which detail the conditions under which a product can be used safely and effectively. These listings ensure that the materials meet certain performance criteria, and compliance with these conditions is vital for safety and legality.

On the other hand, the manufacturer's instructions provide specific guidance on installation practices that are to be followed to ensure the product operates as intended. This typically includes details about compatibility with other components, proper securing methods, and any adjustments needed for different configurations.

Following both the terms of the listings and the manufacturer's instructions is crucial because it ensures not only adherence to safety regulations but also maximizes the performance and longevity of the flue lining. Failing to comply with either could lead to unsafe conditions, inefficiencies, or even failure of the chimney system, which underscores the importance of following both sets of guidelines during installation.