An exhaust pipe assembly for a gas-powered electric generator includes a pipe and a connector. The pipe includes a first pipe portion and a second pipe portion transverse to the first pipe portion. The first pipe portion includes an input opening and the second pipe portion includes an output opening. The connector is positioned at the input opening of the first pipe portion and designed to be detachably connected to a gas-powered electric generator to operatively connect the input opening to an exhaust port of the gas-powered electric generator. The connector is designed to orient the second pipe portion in a substantially vertical direction to guide exhaust gases upwardly and away from structures adjacent sides of the gas-powered electric generator.

Connecting assembly of a gas cooking appliance that includes a flexible tube and a connector fixed to a first end of said flexible tube, the connector being configured to be directly connected to an opening of a manifold of the gas cooking appliance.

A delivery system can include a bridge portion, wherein the bridge portion includes a flared connection protrusion.