Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
Boilers.ca is a brand of ROMA Heating & Cooling · Licensed gas contractor LGA0202903
Comparison
Verdict in brief
The Rinnai i090SN and Rinnai i120CN are both combination (combi) boilers in the Rinnai i-Series (previous generation) line. Published ratings: Rinnai i090SN at 15 MBH input; Rinnai i120CN at 15 MBH input. Both list the same published input of 15 MBH. Rinnai i120CN lists 16.9 lb more shipping weight than Rinnai i090SN (76.1 lb against 59.2 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Rinnai i090SN | Rinnai i120CN |
|---|---|---|
| Minimum input (hero bullet) | 15 MBH | 15 MBH |
| Product weight | 59.2 lb | 76.1 lb |
| Product height | 26.4 in (671 mm) | 26.4 in (671 mm) |
| Product width | 18.5 in (471 mm) | 18.5 in (471 mm) |
| Product depth | 10.9 in (276 mm) | 10.9 in (276 mm) |
| Gas connection | 3/4" MNPT (19 mm) | 3/4" MNPT (19 mm) |
| Gas type (as printed) | Natural Gas | Natural Gas |
| Input rating (page copy) | 90 MBH | 120 MBH |
| Maximum input (hero bullet, as printed) | N (maximum) — page print bug | 199 MBH |
| Residential ENERGY STAR | Yes | Yes |
| SCAQMD approval | Ultra Low NOx | Ultra Low NOx |
Published ratings: the Rinnai i090SN is rated 15 MBH input; the Rinnai i120CN is rated 15 MBH input. Both list the same published input of 15 MBH.
Rinnai i120CN lists 16.9 lb more shipping weight than Rinnai i090SN (76.1 lb against 59.2 lb).
Both records print the same input (15 MBH), height (26.4 in (671 mm)), width (18.5 in (471 mm)) and depth (10.9 in (276 mm)), per the cited sources.
Rinnai
The Rinnai i090SN is a legacy Canadian I-Series heating-only solo boiler — a 90 MBH central-heating input rating per the page copy with a 15 MBH minimum fire and a truncated 'N (maximum)' bullet (page bug) — wall-hung and condensing, documented from its orphaned rinnai.ca page as discontinued history.
Rinnai
The Rinnai i120CN is a legacy Canadian I-Series combi boiler — a 120 MBH central-heating input rating per the page copy with a 15 MBH minimum fire and an unlabelled 199 MBH maximum bullet — wall-hung and condensing, documented from its orphaned rinnai.ca page as discontinued history.
Yes — both list 15 MBH in the cited documentation.
It ships at 76.1 lb against 59.2 lb for the Rinnai i090SN, per the cited sources.
A consultation includes a heat-loss review so the size is right the first time.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.