Met with Jose and proceeded to perform a PTU on a Peerless oil fired boiler. I replaced the oil tank filter along with the fuel pump strainer. Next, I opened up the combustion chamber and removed the gun assembly. I degreased, scrubbed clean and replaced the nozzle with a 85/80B. I reassembled the gun assembly, restored power and fired up the unit. I bled the oil lines and observed the boiler run, cycle and reach temperature. Boiler is showing signs of decay and a rough life. Repairs will be needed in the near future. Replacement would be recommended. Boiler is good for now.