During our visit, a previous job was completed. The gas line was installed to the new tankless water heater. The venting was installed through the roof. A roofer installed a new boot and painted the termination black. The tankless was fired up and tested. Everything worked accordingly. The gas line was isolated and pumped up to 15 psi for inspection. An appointment was scheduled for Friday after the inspection is completed to remove the air test and turn the tankless on.