Where should gas drip legs not be installed to prevent freezing?

The correct answer points out that gas drip legs should not be installed in rooms that can freeze because these areas pose a significant risk of condensation building up within the gas line. When temperatures drop, any moisture present in the gas can freeze, potentially leading to blockages or even gas leaks.

By avoiding installation in spaces where the temperature can drop below freezing, you ensure that the gas remains in a gaseous state and that any potential moisture does not become ice, which would obstruct the flow of gas. This is critical for maintaining safe and efficient operation of gas appliances and fixtures.

Other locations, such as unheated buildings, garages, and attics, can also present risks due to cold temperatures, but the primary focus here is on rooms specifically identified as having the potential to freeze, which directly correlates with the risk posed to gas drip legs.