Navien Water Heaters, Boilers, and Combi-Boilers

Navien, the leader in condensing technology since 2006, produces energy efficient state-of-the-art tankless water heaters, combi-boilers, and boilers. Their commitment to quality has made them one of the fastest-growing companies in the home comfort sector.

Tankless water heaters

Navien’s efficient tankless water heaters provide as much domestic hot water as you require, all while keeping your utility bills low. The Heating Specialist offers both condensing and non-condensing models. Both types are efficient and affordable to operate although there are key differences. The biggest one is that non-condensing water heaters must vent the steam that is generated during the heating process while condensing water heaters recycle the extra heat in a closed system.

Both systems deliver an endless flow of hot water, which means you’re not waiting for a tank to reheat more water. Guarantee your comfort without wasting time and energy.


Navien residential combi-boilers provide hot water on demand, as well as whole house heating. Enjoy affordable warmth from our high-efficiency combi-boilers. These efficient systems offer higher turndown ratios, wider BTU ranges, and longer venting, as well as easy-to-use controls. And they are compatible with a variety of heating applications, including baseboards, radiators, and radiant floor heating systems.

Home Heating Condensing Boilers

There is nothing outdated or old-fashioned about high-efficiency condensing boilers that heat entire homes or businesses, both small and large. Save space and energy with these energy-efficient heating systems! While conventional boilers lose heat, condensing boilers retain that heat for peak efficiency and affordability. Their space-saving design occupies 80% less space while running at least 25% more efficiently than other models. Plus, low noise levels and low exhaust gas temperatures provide flexible installation options and cost-efficient venting. All in all, these boilers will decrease your utility bills while reducing your carbon footprint!


Ready to Get Started?

Contact The Heating Specialist for Navien heating systems in Portland, OR

If you’re interested in installing or upgrading to a boiler, combi-boiler, or tankless water heater, call The Heating Specialist at 503-257-7000 or fill out our form. Our NATE certified technicians will help you decide if a Navien home comfort system is the right choice for your home or business.


From customized installation to maintenance and repairs, we provide you with the best option for comfort, efficiency, and budget.


We supply trustworthy mechanical and design services to local businesses, including offices, warehouses, retail, and multifamily units.

Radiant Floor Heat

Enhanced comfort, economy, and flexibility — providing constant, even warmth throughout your home.

Emergency Service

We’re available 24 hours a day, 7 days a week for emergency service. Call anytime: 503-257-7000.