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West: (416) 298-6874

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(416) 298-6874

Navien NR-180A




  • Ultra condensing efficiency
  • Dual stainless steel heat exchangers
  • Low NOx emissions (≤ 20ppm)
  • SCH 40, 3” PVC venting up to 100’
  • Cascading capable
  • Remote controlled included

Ultra Condensing Efficiency

  • Boasts one of the industry’s highest ratings of 0.96 DOE energy factor.
  • Low annual operating costs and the best value and payback.

Extended Lifecycle

  • Dual stainless steel heat exchangers provide longer life expectancy and more resistance to erosion than copper heat exchangers used in other water heaters.

Navien Technology is Eco Friendly

  • The Eco Pre-mixed burner dramatically reduces NOx emission levels.
  • Boast the lowest emission levels in the industry.
  • Each Navien unit installed equates t0 31 cypress tress.

Inexpensive PVC venting solution

  • Lower exhaust temperatures allow for the use of 3” SCH 40 PVC venting.
  • Offers significant cost savings when compared with other venting materials.
  • Reduces installation time and makes it easy to run a 100 feet of venting.

Enhanced Safety with Dual Microprocessors

  • Two microprocessors offer better control and safe operation.
  • Not only control the burner for ideal combustion but also maintain the steady hot water temperature.

Optimal and Stable Combustion with APS and GPS

  • APS (Air Pressure Sensor) maximizes combustion efficiency by sensing and controlling the air required for optimal combustion.
  • GPS (Gas Pressure Sensor) offers stable combustion by sensing gas pressure and controlling the fan speed to maintain optimal combustion.

Leak Detector

  • Prevents damages to water heaters as well as personal property.

Space Saving Design

  • The wall mount design occupies approximately 80% less space than a traditional 50 gallon tank-type water heaters.


Data FieldNR-180A
Heat Capacity (Input)Min: 15,000 Btu/hr Max: 150,000 Btu/hr
Energy Factor (DOE)Natural Gas0.94
Propane Gas0.94
Dimensions (W x H x D )17” × 28” × 14”
WeightNR-A77 lbs
NR67 lbs
Installation TypeIndoor /Outdoor Wall-Hung
Venting TypeForced Direct Vent
IgnitionElectronic Ignition
Water Pressure ( min-max)15 – 150 PSI
Gas Supply Pressure (from source:min-max)Natural Gas5.0”W.C. ~ 10.5”W.C.
Propane Gas9.0”W.C. ~ 13.5”W.C.
Minimum Flow Rate to activate Water HeaterNo minimum flow rate requirement.
Connection SizesCold Water Inlet3/4” NPT
Hot Water Outlet3/4” NPT
Gas Inlet3/4” NPT
Power SupplyMain Supply120VAC, 60Hz 200W (max 2A)
Heat ExchangersPrimary Heat Exchanger: Stainless Steel Condensing Heat Exchanger: Stainless Steel
Venting (0” Clearance)Exhaust (ø3”)SCH 40 3″ PVC, 3″Polypropylene, SCH 80 3″ CPVC
Intake (ø3”)PVC, Flex Aluminum, Flex Stainless Steel, ABS

We Service the Following Areas

What Our Customers Say

"I just want to say how much I appreciated the prompt service yesterday. Joseph the technician was wonderful. He knew his trade well and he was so polite and pleasant. He did a terrific job, was very thorough and left the furnace and humidifier working in good order. Thanks again."

— Margaret, Scarborough


Memberships & Associations

Licenses & Insurance

Master Heating License, Refrigeration License, Gas Fitters License, $5 M Liability Insurance, Workers Compensation. All employees are Bonded.

Payments Accepted

We accept cash, cheque, & all major credit cards