Navien NAZ Air-to-Air Heat Pump
One system heats and cools your home year-round. The NAZ operates down to -20°C (-4°F) and pairs with the NPF Hydro-Furnace for the ultimate dual-fuel solution when Calgary temperatures plummet.
Two-Way Comfort: Heat & Cool with One System
A heat pump works like a reversible air conditioner — absorbing heat from outside air and transferring it indoors for heating, or expelling indoor heat outdoors for cooling. The NAZ does both with exceptional efficiency.
The NAZ’s inverter-driven compressor continuously adjusts its capacity by monitoring refrigerant pressures and temperatures — automatically matching the exact comfort needs of your home at any given moment. The result: maximum comfort with minimum energy use.
Two SKUs — NAZ-17V36 (2–3 ton) and NAZ-17V60 (4–5 ton) — cover the full range of Calgary home sizes from small condos to large family homes.
- Heating and cooling in one outdoor unit
- Operates in heating mode from -20°C to 23.9°C outdoor temp
- Operates in cooling mode from -15°C to 51.2°C outdoor temp
- Gold Coat outdoor coil — sheds water and facilitates efficient defrost
- Bluetooth module included — contractor setup and diagnostics
- Works with conventional single- or two-stage thermostats
- Dual-fuel compatible — works with NPF Hydro-Furnace or other gas furnaces
- Field-selectable defrost: adaptive or time-temperature modes
- R-454B low-GWP eco-friendly refrigerant
- Large suction accumulator for reliable cold-climate performance
Perfect for Calgary’s Climate
Handles Alberta Winters
Unlike standard heat pumps that lose effectiveness below -10°C, the NAZ operates in heating mode down to -20°C — covering the vast majority of Calgary winter days without assistance.
Dual-Fuel for Extreme Cold
When temperatures drop below -20°C, pair the NAZ with an NPF Hydro-Furnace for automatic dual-fuel operation. The gas furnace takes over seamlessly — you stay warm no matter what.
Summer Cooling Included
Flip to cooling mode for Calgary summers — up to 19.5 SEER2 efficiency means comfortable indoor temperatures at a fraction of the cost of a window AC or conventional central air system.
Capacity-Matching Operation
The inverter compressor self-adjusts so the NAZ always operates at the exact output needed. No over-cycling, no temperature swings — just steady, quiet, efficient comfort.
Efficient Defrost System
The Gold Coat outdoor coil sheds water and ice effectively. Field-selectable adaptive or time-temperature defrost modes ensure year-round reliability in Alberta’s freeze-thaw cycles.
Contractor Bluetooth Module
The included NAC-10SM Bluetooth module lets ER Plumbing technicians configure and diagnose the NAZ quickly and accurately — faster installs and fewer service calls for you.
NAZ Specifications & Performance
| Specification | NAZ-17V36 | NAZ-17V60 |
|---|---|---|
| Capacity | 2–3 Ton | 4–5 Ton |
| Max SEER2 | Up to 19.5* | |
| Max HSPF2 | Up to 9.3* | |
| Cooling Range | 5°F to 124°F (-15°C to 51.2°C) | |
| Heating Range | -4°F to 75°F (-20°C to 23.9°C) | |
| Refrigerant | R-454B | |
| Voltage | 230V / 1-Phase / 60 Hz | |
| Min. Circuit Ampacity | 20A | 30A |
| Max Overcurrent | 25A | 40A |
| Compressor Type | Rotary, 18–100 Hz | |
| Expansion Valve | EEV (for heating) | |
| Dimensions W×D×H | 29⅛″×29⅛″×25″ | 29⅛″×29⅛″×32⅞″ |
| Weight (net) | 142 lbs | 190 lbs |
| Includes | Bluetooth Module (NAC-10SM) | |
*With select AHRI matched indoor equipment.
Get a Free Heat Pump Installation Quote
Thinking about a heat pump for your Calgary home? ER Plumbing & Heating will assess whether the NAZ alone or the NAZ + NPF dual-fuel system is right for your climate zone, home size, and budget.
- Heat pump sizing for your specific home
- Dual-fuel configuration available
- Existing ductwork assessment included
- Rebate eligibility review (ask us!)
Also explore: NPF Hydro-Furnace · NAS Air Handler · Dual-Fuel System