Water Heater Maintenance by a Professional Plumber - Illustration #3370500 (License: Personal Use)

The black-and-white line illustration shows a cartoon plumber wearing a cap, glasses, and work overalls, kneeling beside a vertical storage water heater. He is using a wrench to adjust or inspect the temperature-pressure relief valve and control module near the base of the unit, with a toolbox at his side. The heater features visible piping, an access panel, and a vent stack above-typical of gas-powered models.

This image is commonly used on plumbing service websites, HVAC repair blogs, DIY maintenance guides, and educational materials about home water heating systems. It supports user intent related to troubleshooting, preventive maintenance, or hiring a professional for water heater issues.