TANKLESS water heaters

Kelly and Elmer Priegnitz believe firmly in minimizing the impact of modern comforts on their old house. For that reason, they chose a tankless water heater. “We love it,” Kelly says. “It heats the water much more quickly and efficiently, and it’s also a space saver.”

For homeowners, tankless heaters provide advantages. Number one is probably space. A traditional water tank holds 40 to 60 gallons, while the wall-mounted tankless water heater is generally less than half the size. Reduced energy consumption is another consideration: In order to provide on-demand hot water, standard storage tank heaters work to constantly keep water hot. Tankless ones also provide hot water on demand, but through an initial draw of energy. And although the upfront cost of a tankless heater is greater, their lifespan is almost double and energy savings indisputable.

Sound like a no-brainer? It’s a little more complicated for old-house owners. Plumber Corey Szczesny of Szczesny Home Improvements in East Aurora, N.Y., cautions: “Tankless uses less energy overall, but the initial demand when the hot water gets turned on is huge. Old-house gas lines just weren’t meant for that.” The cost of retrofitting gas lines therefore becomes a factor in overall cost. “Otherwise it’s like trying to cook a steak with a BIC lighter,” Szczesny explains. He notes that it’s wise to consult a professional plumber to determine what’s best for your household size and needs.