Navien NPE-A2 240A vs Rinnai RU199IN
Verdict: The Navien NPE-A2 240A outperforms the Rinnai RU199IN with a 11.2 GPM flow rate versus 11 GPM and includes a built-in recirculation pump and buffer tank per the grounded facts. The Rinnai RU199IN is ENERGY STAR qualified but discontinued with no equivalent integrated features. Navien wins on performance and support for modern installations.
Winner: Navien NPE-A2 240A
Navien NPE-A2 240A: 8.5/10
Rinnai RU199IN: 6/10
Spec-by-spec comparison
| Navien NPE-A2 240A | Rinnai RU199IN | |
|---|---|---|
| Max Flow Rate | 11.2 GPM | 11 GPM |
| Max Input | 199900 BTU/hr | 199000 BTU/hr |
| Heat Exchangers | Dual stainless steel | — |
| Special Features | Built-in recirculation pump and buffer tank | ENERGY STAR qualified |
Navien NPE-A2 240A
What works
- 11.2 GPM max flow rate supports higher simultaneous demand
- Current NPE-2 generation with built-in recirculation pump and buffer tank
- Dual stainless steel heat exchangers for durability
What doesn't
- Higher upfront cost typical of feature-rich models
- Requires proper venting and gas line sizing for 199900 BTU/hr
Rinnai RU199IN
What works
- 11 GPM max flow rate for standard household use
- ENERGY STAR qualified for efficiency
- Compatible with natural gas or propane
What doesn't
- Discontinued model with no ongoing manufacturer support
- Lacks built-in recirculation pump and buffer tank
Bottom line
Our pick: Navien NPE-A2 240A.
View full comparison on GoodPickr
Related Comparisons
- Rinnai RUR199iN Tankless Water Heater vs Rheem Performance Platinum 50-Gallon Tank Water Heater
- Nespresso Vertuo Next vs Nespresso Vertuo Plus Deluxe
- Netgear Orbi vs Eero Pro 6E
- Ninja Creami vs Ninja Creami Deluxe
- Ninja Foodi vs Cosori Dual Blaze
- Ninja Foodi Air Fryer vs Cosori Dual Blaze Air Fryer
- Ooni Koda 16 vs Ooni Karu 16
- Oral-B iO Series 7 vs Oral-B iO Series 9
- Oral-B iO Series 9 vs Sonicare DiamondClean
- Oral-B iO Series 9 vs Philips Sonicare DiamondClean
- Zojirushi NS-ZCC10 Neuro Fuzzy Rice Cooker vs Tiger JNP-S10U Rice Cooker
- Ring Video Doorbell vs Arlo Essential Video Doorbell
Affiliate disclosure: GoodPickr may earn a commission from qualifying purchases made through partner links on this page. Verdicts are editorially independent and never influenced by affiliate relationships.
GoodPickr · Data-backed product comparisons