14x25x8 room measurements Talked to customer about when the water heater pilot typically goes out. Customer stated that their is not specific pattern and the pilot goes out randomly. And that it is only the left water heater that needs to be relit. Took DV milivolts at each thermopile. Left water heater was sitting at approximately 450. Right at approximately 250. Took incoming gas pressure. Gas pressure was at approximately 6.5 WC. Fired off both water heaters and the gas range. WC did not drop bellow 5WC. Took manifold gas press At both water heaters. Both water heaters sitting at approximately 4WC when both water heaters firing. Performed draft test. Smoke from draft test went into venting without issue. Room is at 2800 Cubic feet. Was on hold with Bradford white for a hour. Was not able to reach them. Performing replacement of both thermopiles and left side gas control valve per management. 2/17 Shut gas off to both water heaters. Drained down water heater that pilot