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Tankless Hot Water Heaters

High Efficiency Tankless Hot Water Heaters Save You Money!


Tankless hot water heaters offer unlimited hot water at a steady temperature whenever you need it and for as long as you need.

Tankless hot water heaters offer unlimited hot water at a steady temperature whenever you need it and for as long as you need.

They offer the industry’s highest energy efficiency at 98% which lowers your annual operating cost and the best payback over tank type water heaters.

Another advantage of the tankless hot water heater is that they only produce hot water when needed instead of storing it in a hot water tank that has to use energy to maintain temperature.

That alone dramatically decreases your energy cost.

Finally, adding a tankless water heater to your home will drastically maximize space, whether in your basement, garage or a closet. Just another added benefit of going tankless!

SJ Johnson offers only the highest quality tankless water heaters by Navien.  Navien is the leader in condensing technology, providing condensing tankless water heaters, combi-boilers, and boilers. Navien’s products possess state-of-the-art technology, high efficiency, and reliable quality.navien hot water heater

The Navien NPE Series, is the ultimate hot water solution.  It offers all the hot water you need, for as long as you
need it. A Navien hot water heater will help lower your energy bills and is environmentally friendly. You can communicate with your Navien system navien hot water systemfrom anywhere with the NaviLink app giving you convenience and control in the palm of your hand.

  • Endless hot water without wasting energy heating a tank.
  • Space saving 80% smaller than traditional tank water heaters.
  • An integrated and easy to use control.
  • Cascading capabilities without an external control for larger homes. 
  • 1/2″ gas pipe capability up to 24 feet – use existing gas line for easy retrofit.An industry leading warranty. 
  • Dual stainless steel heat exchangers for longer life. 
  • Field gas convertibility from NG to LP.

Contact us Now for more information on tankless hot water heaters!

Is A Navien Hot Water Heater right for you?


Lower Energy Bills

Lower energy bills. Lower impact on the environment

Unlike systems that waste energy to hear large tanks of water, Navien tankless units utilize up to 99¢ of every $1 to heat your water. Unlike a conventional tank system, it only fires up when hot water is needed allowing great utility savings and a lower impact on the environment. What's more, Navien tankless heaters reduce CO2 output by 1,216.8 lbs.* per year compared to traditional tank types heaters. This would be equal to saving 62 gallons of gasoline in your car**


*Source: www.ElA.gov **Source: www.EPA.gov

Navien offers Endless Hot Water

AHHHHHH..... Finally Endless Hot Water

Navien tankless water heaters deliver a continuous flow of hot water for as long as you need it. There's no waiting for a storage tank to warm up and the hot water navien tankless hot water heater brochure coverwill never run out when sized correctly.

Only Navien NPE-A tankless water heaters offer Comfortflow® technology to eliminate cold water shock associated with other tankless systems. Our unique buffer tank and recirculation pump assures fasters delivery of heated water.

Navien Saves Space

Save Space

The Navien NPE Series wall-mounted tankless water heaters are easy to install and occupy 80% less space than traditional 50 gallon tank-type heaters. Our largest unit is only 17.3"W x 27.4"H x 13.2"D.

Navien was first to offer dual stainless steel heat exchangers, rather than copper.

Dual Stainless Steal Heat Exchangers

Dual stainless steal heat exchangers extends the life of the unit by resisting corrosion. The units are also NG/LP convertible.

Navien offers the industries strongest residential warranty.

The industry's strongest residential warranty

Long life components, advanced technology and superior craftsmanship assure that your Navien tankless water heater will provide years of trouble-free service. For added peace of mind, we offer the industry's strongest warranty, including 15 years on the heat exchanger.

WATCH this Navien Tankless install in time lapse format.

In this video you'll see how fast and easy an install is you'll want to call SJ Johnson today!


Serving Southern Maryland, Anne Arundel County, Charles County, Calvert County, Upper Marlboro, Lower Prince Georges County.