Put this steamer in. HO had just bought house and was still in process of moving in. Put on new main air vents, too.
Fixed this setup on the gas line. I like the improvized gas cap. Wouldn't have helped, the elbow it dropped down from (for gas dryer) was so loose the pipe swung freely. There was duct tape on the tee off main line. We ended up redoping the line to the water heater also, since it all came loose on us when the boiler was disconnected from the gas.