Rinnai · Series
Rinnai RUCS Model Series
The RUCS Model Series is a current Rinnai non-condensing tankless water heater line in 65 and 75 sizes — RUCS65iN/P and RUCS75iN/P. It is a DHW-only appliance line, not a boiler.
Series facts
- Type
- dhw-only
- Efficiency
- Unknown
- Fuel
- The RUCS category page states Rinnai tankless water heaters are available with natural gas or propane fuel options.
- Venting
- Unknown
- Models documented
- 0
- Warranty
- Not verified
About the RUCS Model Series
The RUCS Model Series covers Rinnai's current non-condensing tankless water heaters in the 65 and 75 sizes, with natural-gas and propane variants of each (RUCS65iN, RUCS65iP, RUCS75iN, RUCS75iP). The models are listed on rinnai.ca under residential tankless water heaters and install indoors or outdoors.
These are domestic-hot-water appliances: they heat water on demand and have no hydronic heating circuit. Rinnai's category copy positions the line on value and reliability for small- to medium-sized homes, and states the units are available on natural gas or propane. Per-model rating rows were not transcribed in this pass because the captured category page does not print a specification table; individual product pages should be consulted for model-specific figures.
Highlights
- Non-condensing tankless water heaters — DHW-only appliances, not boilers
- 65 and 75 sizes with N and P variants: RUCS65iN/P and RUCS75iN/P
- Indoor or outdoor installation; natural gas or propane
- Listed in rinnai.ca's current residential tankless navigation
Models
RUCS Model Series models
One canonical page per model with input, output and efficiency kept separate.
Error codes and alerts
RUCS Model Series alerts
No alerts documented for this series yet.
Manuals
Official documents
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Services for Rinnai boilers
Frequently asked questions
Is the Rinnai RUCS a boiler?
No. RUCS models are non-condensing tankless water heaters for domestic hot water only. A home that also needs space heating requires a boiler or combi.
What sizes does the RUCS line cover?
The official model codes captured are RUCS65iN, RUCS65iP, RUCS75iN and RUCS75iP — 65 and 75 sizes in natural-gas and propane versions.
Talk to a boiler technician
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Rinnai Canada — RUCS Model Series · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.