Gas outlets must be installed far enough from floors and walls to allow the use of what tool without strain?

The requirement for gas outlets to be installed a certain distance from floors and walls is primarily to facilitate the safe and effective use of tools, particularly wrenches. Wrenches are commonly used for connecting and disconnecting gas appliances, and having sufficient space around the outlet allows the technician to maneuver the wrench comfortably without undue strain or the risk of damaging the fittings.

Wrenches require a free range of motion to properly grip the fittings and apply the necessary torque. If the outlet is too close to floors or walls, it can restrict movement, making it difficult to use the tool effectively and safely. This could not only lead to a potential leak if connections are not secure, but also increases the risk of physical strain or injury to the technician due to awkward body positioning.

While other tools like screwdrivers, hammers, or pliers may also be used in the installation or maintenance of gas appliances, the specific concern with gas outlet installations highlights the importance of accessibility for tools that require significant torque and movement, hence, reinforcing the necessity for optimal spacing in relation to wrenches.