Tankless Water Heater
Installation in Southern NH
A.J. LeBlanc Heating installs Navien and Rinnai tankless water heaters across Southern NH. Family-owned since 1928. Tankless units deliver endless hot water on demand, use 20 to 30 percent less energy than a tank, and last twice as long.
Tankless Water Heater Installation
A tankless water heater heats water only when you need it. There is no tank kept hot all day, you never run out of hot water, and most homes see a 20 to 30 percent reduction in water heating costs. A.J. LeBlanc Heating installs Navien and Rinnai tankless systems throughout Southern NH and handles all the gas line, venting, and electrical work.
- Navien and Rinnai tankless installation
- Endless hot water on demand
- 20 to 30 percent energy savings over tank units
- Compact wall-mounted, frees up floor space
- 15 to 20+ year lifespan vs 10 to 12 for tanks
- All gas, venting, and electrical work included
Combination Heat & Hot Water
Navien and Rinnai combi-boilers handle both space heating and domestic hot water in a single wall-hung unit. For homes with hydronic (hot water) heating systems, this eliminates a separate boiler and water heater, saving space and reducing equipment costs. The condensing combi units we install are among the most efficient systems available.
- Space heating and hot water in one unit
- Replaces both boiler and water heater
- Condensing efficiency, 95%+ AFUE
- Ideal for homes with baseboard or radiant heat
- NHSaves rebates may apply
- All permits and inspections handled
Recent Installations
Tankless Water Heater FAQ
How much does tankless water heater installation cost?
A tankless water heater installation in Southern NH typically runs $2,800 to $5,600 installed depending on venting requirements, gas line work, and any electrical upgrades needed. We provide free written estimates.
How long does installation take?
Most tankless installations take four to six hours. More complex installations involving new gas lines or venting routes may take a full day.
Do I need to upgrade my gas line?
Sometimes. Tankless heaters have a high BTU demand when firing, which can require a larger gas line than what served your old tank. We check this during the estimate and include any required gas line work in the quote.
Are there rebates for tankless water heaters?
NHSaves offers rebates on qualifying tankless units through some utility programs. We check current availability at the time of your estimate.
Get a Free Tankless Water Heater Estimate
Never run out of hot water again. We'll assess your home, recommend the right system, and give you a written quote upfront.
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Contact Information
Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service
24/7 Emergency Service
No heat? No hot water? Call 603-623-0412 any time.