The smaller appliance vent should connect into the chimney ________ the vent from the larger appliance.

Connecting the smaller appliance vent into the chimney above the vent from the larger appliance is essential for ensuring proper draft and venting efficiency. This arrangement allows the gases from the smaller appliance to rise and exit through the chimney without being affected by the larger appliance’s exhaust. It ensures that the flow from the larger appliance does not interfere with or backdraft the smaller appliance’s venting.

Positioning the smaller appliance vent above the larger one helps prevent condensation and the buildup of potentially harmful gases in the smaller vent, maintaining the integrity of the venting system. Proper placement also complies with safety standards, reducing the risk of exhaust gases leaking back into the living space. This is particularly important in multi-appliance systems where ensuring a clear, unobstructed exit for combustion gases is critical.