NPE210A2
Navien 180,000 BTU
10.1 GPM
Upgraded Tankless Water Heater
The Navien NPE A2 series adds ComfortFlow features—an internal 0.5-gallon buffer tank and built-in recirculation pump—for tankless performance with improved hot-water comfort.
NPE210A2 is typically selected when you want both higher capacity and the comfort advantages of built-in recirculation features. In Ottawa homes with busier peak windows, it can be a strong fit when you’re trying to avoid hot-water bottlenecks while also reducing wait time at fixtures.
The pitfall here is paying for capacity and comfort features without confirming that the gas supply, venting, and condensate routing can support the installation cleanly. We verify gas capacity and pressure, venting routing, and the recirc approach so the unit’s features translate into real comfort—not complexity.
We confirm sizing and pricing on site – no pressure, no upsells.
Installed in Ottawa and surrounding areas by Peak Comfort HVAC
Specs for the NPE210A2
- System type: Gas-fired, condensing, tankless, wall-hung (forced draft direct vent)
- Fuel compatibility: Natural gas or propane (LP conversion kit required)
- Installation type: Indoor or Outdoor (with approved outdoor vent kit)
- Efficiency (UEF): 0.95
- Input range (BTU/h): 12,000–180,000
- Max DHW flow @ 35°F rise: 10.1 GPM
- Max DHW flow @ 67°F rise: 5.1 GPM
- Hydraulic range: Minimum flow 0.5 GPM (optional <0.01 GPM in ComfortFlow/recirc mode); water pressure 15–150 PSI
- Gas supply pressure (in. w.c.): NG 3.5–10.5; LP 8–13
- Venting: Forced draft direct vent; 2 in or 3 in PVC/CPVC/approved polypropylene/stainless; 0 in vent clearance to combustibles
- Connection sizes: Hot 3/4 in NPT; Cold 3/4 in NPT; Gas 3/4 in; Air intake 2 in; Exhaust 2 in
- Physical (W×H×D; weight): 17.3 in × 27.4 in × 13.2 in; 77 lbs
Technical documents
Key features of the NPE S2 family
What it is:
- Premium condensing tankless with ComfortFlow components built in
- Internal 0.5-gallon buffer tank and integrated recirculation pump
Comfort & operation
- Intelligent preheating learns usage patterns to reduce “wait time” in many setups
- Optional crossover valve support for certain recirc approaches
Build & serviceability
- Dual stainless steel heat exchangers for efficiency and durability
- Advanced control panel with setup wizard and diagnostics
Install + ownership notes
- Recirculation changes system behavior and can increase energy usage depending on configuration
- Natural gas or propane capable (conversion kit required; qualified installer)
Want to see if this tankless is the right fit?
We’ll map your plumbing layout and set up recirculation the right way—so comfort improves without creating callbacks.
Get in Touch
Office Address:
275 Montfort St, Ottawa
ON K1L 5N8
Servicing: Ottawa, Orleans, Nepean, And the surrounding areas
Phone:
E-Mail:
info@peakcomfort.ca
Quick Contact
Email: info@peakcomfort.ca
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