How big a heater do you need?
A tank is chosen for the busiest hour of hot-water use. A tankless model is chosen for the flow running at once and the chill of the incoming water. Our tankless flow calculator assumes 52°F incoming water for New York City and the Long Island towns, and 42°F for the upstate villages, where the unit has the most work to do.
Estimates are a click away. The water heater size calculator returns a tank size and a first-hour rating, and the tankless flow calculator returns the gallons per minute and the temperature rise to expect in your part of the state. Neither replaces a site visit, but both give us something concrete to discuss on the phone.
Finding your heater's age
Every tank carries a label, and on it a serial number that hides the build date in a brand-specific code. The water heater age by serial number tool translates the common ones. Once you know the age, judge the condition. Rust around the fittings and a damp base point to replacement, whereas a young heater with a single failed part is worth repairing, and a quick call can settle which you have.
If the floor is wet and the heater looks dry, the water may be coming from a hidden leak. Our leak detection page covers how we track one down, and the main page lists the other services.