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Rinnai · Series

Rinnai SENSEI RX / RXP (condensing)

The SENSEI RX series is Rinnai's current flagship condensing tankless line in Canada (manual 100000839): RX199iN, RX180iN and smaller sizes with UEF 0.98, Wi-Fi control, ENERGY STAR listing on rinnai.ca, and the RXP models adding a built-in recirculation pump.

Current seriesSold in CanadaGas tanklessNatural gasPropaneresidential
Request service for this seriesReplacement estimate

Series facts

System type
Gas tankless
Efficiency
UEF 0.98 (high draw)
Energy
Indoor models end iN (natural gas) or iP (propane); RXP models add a built-in recirculation pump. Rinnai Canada leads its tankless listing with this series as of the verification date.
Venting
Condensing PVC/CPVC/polypropylene venting per manual 100000839; Rinnai publishes separate common-venting instructions (100000625 PVC/CPVC, 100000557 polypropylene).
Models documented
3
Warranty
Published terms

UEF 0.98 for the RX and RXP residential models per rinnai.ca. The site labels ENERGY STAR for these models; draw patterns are not printed on the product pages.

About the SENSEI RX / RXP (condensing)

The RX series replaced the RU as Rinnai's lead residential condensing line: rinnai.ca lists RX199iN, RX180iN, RX160iN and smaller sizes ahead of the RU models as of the verification date, with UEF 0.98 on the residential pages, ENERGY STAR marked on the Canadian listing, and Wi-Fi capability built into the platform.

RXP models (for example the RXP199iN) are the RX units with a recirculation pump built in, removing the separate pump and pump-cable purchase of the RX/RU external-pump approach. Recirculation shortens the wait at distant taps; it does not make hot water instant and it adds gas use.

Rinnai's cross-series troubleshooting document 100000652 maps diagnostic codes across SENSEI generations, so the code table for this series is read against the RX manual 100000839 and that document. Whether CANRO stocks a given RX model for a job is confirmed at consultation.

Highlights

  • Current Rinnai flagship: rinnai.ca leads with RX/RXP as of 2026-09-07
  • UEF 0.98 with ENERGY STAR marked on the Canadian product pages
  • Wi-Fi capable; SCAQMD ultra-low-NOx certified
  • RXP models add a built-in recirculation pump
  • Condensing PVC/CPVC/polypropylene venting; manual 100000839
  • Codes read against manual 100000839 and cross-series document 100000652

Rinnai's 10/2024 SENSEI residential warranty document covers the SENSEI family, including heat-exchanger, parts and registration-based labour terms set out in the document. Confirm the exact terms in the warranty PDF before relying on them.

Models

SENSEI RX / RXP (condensing) models

One canonical page per model. Capacity and fuel variants stay on that page.

Rinnai · Gas tankless

Rinnai RX199iN

CurrentSold in Canada
Max input
199,000 BTU/h
Flow at unspecified rise rise
11.1 GPM (42 L/min)
Uniform Energy Factor (UEF)
0.98

The Rinnai RX199iN is Rinnai's current flagship indoor condensing natural gas tankless water heater in Canada: 15,000–199,000 BTU/h, UEF 0.98, up to 11.1 GPM (42 L/min) maximum flow at an unstated rise, Wi-Fi control and ENERGY STAR marked on rinnai.ca. It is the RX successor to the RU199iN.

Natural gasPropaneCondensing, PVC/CPVC/PP
Specifications, manuals and service

Rinnai · Gas tankless

Rinnai RX180iN

CurrentSold in Canada
Max input
180,000 BTU/h
Flow at unspecified rise rise
10.0 GPM (38 L/min)
Uniform Energy Factor (UEF)
0.98

The Rinnai RX180iN is an indoor condensing natural gas tankless water heater in Rinnai's current RX flagship series: 15,000–180,000 BTU/h, UEF 0.98, up to 10.0 GPM (38 L/min) maximum flow at an unstated rise, Wi-Fi control and ENERGY STAR marked on rinnai.ca.

Natural gasPropaneCondensing, PVC/CPVC/PP
Specifications, manuals and service

Rinnai · Gas tankless

Rinnai RXP199iN

CurrentSold in Canada
Max input
199,000 BTU/h
Flow at unspecified rise rise
11.1 GPM (42 L/min)
Uniform Energy Factor (UEF)
0.98

The Rinnai RXP199iN is the RX199iN with a built-in recirculation pump: 15,000–199,000 BTU/h, UEF 0.98, up to 11.1 GPM (42 L/min) maximum flow, Wi-Fi control and ENERGY STAR marked on rinnai.ca. It is Rinnai Canada's pump-included flagship.

Natural gasPropaneCondensing, PVC/CPVC/PP
Specifications, manuals and service

Compare models in this series

Comparison of Rinnai RX199iN and Rinnai RX180iN and Rinnai RXP199iN
SpecificationRinnai RX199iNGas tanklessRinnai RX180iNGas tanklessRinnai RXP199iNGas tankless
Minimum gas input15,000 BTU/h15,000 BTU/h15,000 BTU/h
Maximum gas input199,000 BTU/h180,000 BTU/h199,000 BTU/h
Uniform Energy Factor (UEF)0.980.980.98
Maximum domestic hot-water flow11.1 GPM (42 L/min) at unspecified rise rise10.0 GPM (38 L/min) at unspecified rise rise11.1 GPM (42 L/min) at unspecified rise rise
Minimum activation flow0.4 GPM (1.5 L/min)0.4 GPM (1.5 L/min)0.4 GPM (1.5 L/min)
vent-2in———
Weight55 lb (24.5 kg)55 lb (24.5 kg)58 lb (26.3 kg)

“—” means not applicable to that system type or not published by the manufacturer. Flow figures are only comparable at the same temperature rise; UEF values are only comparable within the same draw pattern.

Fault codes

SENSEI RX / RXP (condensing) codes and status lights

No codes documented for this series yet.

Manuals

Official documents

Where CANRO provides on-site service

On-site service is currently offered across Metro Vancouver: Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Delta, Langley, Port Moody, Port Coquitlam, Maple Ridge, Pitt Meadows, White Rock, Tsawwassen; plus Anmore, Belcarra, Lions Bay, Bowen Island, Abbotsford with travel or ferry arrangements confirmed by phone. Everything else on this site is reference information you can use anywhere in Canada.

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Services for Rinnai gas tankless units

Frequently asked questions

Is the RX series the replacement for the RU series?

Rinnai Canada lists the RX and RXP models ahead of the RU series as of September 2026, which makes RX the current flagship; the RU pages remain live, so both are treated as available until Rinnai retires the RU pages.

What does RXP add over RX?

A built-in recirculation pump. The RX and RU models support recirculation with an external pump; the RXP carries the pump inside the cabinet.

What UEF does the RX series carry?

UEF 0.98 for the residential RX and RXP models per rinnai.ca, with ENERGY STAR marked on the Canadian listing. Ratings are only compared at the same draw pattern.

Talk to a water heater technician

Describe what the water heater is doing and get a straight answer about the next step.

On-site service in Metro Vancouver, BC. Call to check availability.

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Related

Sources and verification

Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.

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