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Comfort Doctor Heating and Coolingstarstarstarstarstar4.8 / 5

441 Total Reviews /files/Comfort-Doctor-Cursive.png505-257-8109$po box 28463, santa fe NM

Domestic Water Heating Service, Repair, Installation, & Replacement

Tankless Water Heaters


Gas hot water heaters are efficient and effective. You now have the choice of traditional or tankless hot water systems. We would like to provide you with some information to help in the decision making process of your new water heater system.

Navien Condensing tankless water heaters are compact heating units that provide hot water as it is needed, and do not store hot water like traditional tank-type water heaters. When a hot water tap is turned on, water enters the tankless water heater. A sensor detects the water flow, and activates an electric or gas heating device, which quickly raises the water temperature to a preset level. When water flow stops, the heating element shuts off. Thermostatically-controlled tankless water heaters vary their output temperature according to water flow rate and inlet water temperature.

Enjoy endless hot water with a tankless system from Rinnai!

Unlike traditional storage tank water heaters, Navien tankless water heaters do not store a reservoir of hot water. As a result, standby losses are reduced, which makes them an energy-efficient alternative to traditional water heating. When water flow is detected, they begin heating water, making them highly efficient and cost effective. When the demand for water ceases, they shut down and use no energy.

There will always be hot water. Endless hot water - for bathing, cooking, dishes, laundry, and all the other countless ways hot water enriches our lives.

We Carry Navien Tankless Water Heaters

Enjoy up to 40% energy savings, endless hot water, and significant space savings.


Rinnai tankless water heaters are incredibly powerful and efficient water heating systems.

Tankless water heaters consume a fraction of the space consumed by a tank heater. They can be mounted inside or outside.

Because tankless heaters do not store water, they are less subject to corrosion than tank-type heaters. As a result - their expected equipment life is possibly longer - possibly more than 20 years, compared with 10 - 15 years for traditional heaters. Also, because they are not heating 40 - 50 gallons of water 24 hours a day, tankless water heaters are less susceptible to leakage than tank-type water heaters.