Tankless Water Heater in Laurel, MD

Laurel conditions to know first

The City of Laurel's own permit checklist says the city doesn't review or inspect plumbing; plumbing permits go straight to WSSC Water, and Prince George's County requires one for water heater replacements. The city's Fire Marshal and Permit Services office handles building permits if the job also changes walls or framing. Keep in mind that the Laurel mailing address reaches well past city limits, into unincorporated West and South Laurel and across county lines into Howard and Anne Arundel counties, where those counties' rules apply.

Inside the city, WSSC Water supplies water from the Potomac River and the Patuxent River reservoirs, disinfected with chlorine and treated with an orthophosphate corrosion inhibitor. The median home was built around 1984, so many heaters sit in basements or garages with a flue shared with the furnace.

Tank, tankless or heat pump?

Signs it's time to decide

• Rust-colored hot water or a damp floor around an older tank
• Hot water running short now that the household has grown
• Popping or rumbling from sediment in the bottom of a tank
• An existing tankless unit that fires slowly or throws repeated errors

Timing and seasonal notes

Spring and early fall are the easiest times to schedule a switch, since you can live with a day of limited hot water and plumbers are less busy with emergency calls. Winter is the hardest season on any heater because incoming river water is coldest, and a tankless unit sized for summer can come up short in January. If you're planning a switch, doing it before cold weather leaves time for gas pipe changes and the WSSC inspection. If you ever smell gas, leave the house first and then call BGE at 877.778.7798 or 911 from outside. BGE's guidance is to leave the area before calling.