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Water Heater Installation in Vermont

A failed water heater is one of the most disruptive home plumbing events – no hot water affects every member of a household immediately. At Langlois Plumbing, Heating & AC, we prioritize water heater calls and can typically complete replacements the same day or within 24 hours of assessment. We install both tank and tankless systems and will give you an honest comparison before you choose.

A standard 40-gallon tank water heater recovers at approximately 22–30 gallons per hour (GPH) depending on the fuel type and first-hour rating. Tankless (on-demand) water heaters provide continuous hot water at 2–5 gallons per minute (GPM) and are 24–34% more energy-efficient than standard storage tank models per U.S. DOE data. Vermont homes on propane benefit more from tankless efficiency than natural gas homes due to propane's higher cost per BTU.

Tank vs. Tankless Water Heaters

Tank water heaters store hot water continuously – simple, reliable, and less expensive upfront. Tankless units heat water on demand – higher efficiency, unlimited hot water supply, but higher upfront cost and, in Vermont, require attention to freeze protection in unheated mechanical rooms. The right choice depends on your household’s hot water usage patterns, fuel type, and whether efficiency savings over a 10–15 year lifespan justify the higher initial investment.

Heat Pump Water Heaters

Heat pump water heaters use the same refrigeration technology as heat pumps to heat water more efficiently than electric resistance – typically 3x the efficiency of a standard electric element. They qualify for Vermont and federal incentives (see /hybrid-water-heater/). For Vermont homes with electric water heating, a heat pump water heater upgrade is one of the highest-ROI investments available.

Frequently Asked Questions

A standard tank replacement is typically completed in two to three hours. Tankless installations requiring new gas line or electrical work may take four to six hours.
For a household of 1–2 people, a 30–40 gallon tank is typically sufficient. 3–4 people: 40–50 gallons. 5+ people: 50–80 gallons, or a tankless system. First-hour rating (FHR) is the more precise sizing metric - we calculate this for every installation.
Tank water heaters typically last 8–12 years. Tankless units last 15–20 years with regular maintenance (annual descaling in Vermont's hard water areas). Signs of imminent failure include rust-colored water, pooling water around the base, or inconsistent hot water temperature.
Yes. Call (802) 233-0790 for urgent water heater failures. We triage all no-hot-water calls promptly.

Schedule Your Water Heater Assessment

Call (802) 233-0790 or request service online for a same-day or next-day water heater assessment. We’ll evaluate your current system and give you tank and tankless options with honest cost and efficiency comparisons.
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