What minimum amount of slope per foot should a vent connector have when directed upward toward the chimney?

The minimum amount of slope per foot that a vent connector should have when directed upward toward the chimney is 1/4 inch. This slope is crucial because it ensures that condensate and any other byproducts of combustion flow properly up the vent and do not accumulate in the vent connector, which could lead to blockages or improper ventilation. If the slope is inadequate, it could result in inefficient venting and increased risk of backdrafts or the build-up of harmful gases inside the living space.

In addition to promoting effective drainage, the 1/4 inch per foot slope is also an industry-standard recommendation that balances effective venting with practical installation considerations. Using this slope helps prevent maintenance issues and ensures the safety and efficiency of the gas appliance being vented.