Solar & Energy Efficiency · Property Services
Tankless Water Heater Installation
Tankless water heaters heat water only when you ask for it, so they never run out as long as the flow rate is within their capacity, and they take less space than a tank. They need proper gas or electrical supply, venting and maintenance. NorTech connects you with vetted licensed plumbers who set their own price and size the unit for your home.
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Understanding flow rate and temperature rise
A tankless heater is rated by how many gallons per minute it can heat by a given temperature rise. In cold-water regions, the rise is bigger and the capacity smaller. The plumber adds up the fixtures you might use at once, such as two showers and a dishwasher, and picks a unit that can handle that demand. Undersizing leads to lukewarm water when several fixtures are running, so sizing is key. List the fixtures that run at the same time in your home, such as two showers plus the dishwasher, and share the list so the plumber can size the unit properly.
Gas lines, venting and electrical needs
Gas tankless units need larger gas lines than tanks, because they burn more fuel at once, and they need special venting made for high-efficiency exhaust. Condensing models produce acidic condensate that must be drained. Electric tankless units need heavy circuits that many panels cannot support. The plumber checks all of this before recommending a unit, and a permit and inspection are required. Ask about recirculation options, because tankless units can deliver cold water for a short moment unless a loop or small buffer tank is added.
Maintenance, scale and long-term cost
Hard water causes scale that reduces efficiency, so flushing the unit with vinegar or a cleaning solution once a year is important. Isolation valves make this easy. Tankless units can last twenty years, but they cost more up front than tanks. Some models include recirculation to cut wait time. Keep the manual and a log of flushes for warranty. Schedule an annual flush and write the date on the unit, since scale from hard water is the most common reason tankless heaters lose efficiency.
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