NPE240A2
Navien 199,000 BTU
11.2 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.
NPE240A2 is the highest-capacity A2 option in this lineup, typically chosen for higher-demand Ottawa households that also want the comfort benefits of onboard recirculation features. It’s a strong fit when multiple fixtures can overlap and you want more consistent “ready hot water” behavior in day-to-day use.
The pitfall is assuming the biggest unit automatically equals the best outcome—site constraints still matter. We verify gas capacity and pressure, venting route/termination, condensate management, and a sensible recirc configuration so you get both performance and comfort without overcomplicating the install.
We confirm sizing and pricing on site – no pressure, no upsells.
Installed in Ottawa and surrounding areas by Peak Comfort HVAC
Specs for the NPE240A2
- 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): 13,300–199,900
- Max DHW flow @ 35°F rise: 11.2 GPM
- Max DHW flow @ 67°F rise: 5.6 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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