Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The Q85SN and Q130SN are heating-only Q-Series boilers that share the same 15.2 in depth and 31.4 in height: the Q85SN prints an 85,000 BTU central-heating capacity at 110 lb, the Q130SN 130,000 BTU at 117 lb, with minimum-input bullets of 17,000 and 26,000 BTU. Both print the truncated "N (maximum)" bullet.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Rinnai Q85SN | Rinnai Q130SN |
|---|---|---|
| Minimum input (hero bullet) | 17 MBH | 26 MBH |
| Central heating capacity | 85 MBH | 130 MBH |
| Product weight | 110 lb | 117 lb |
| Product width | 19.7 in | 19.7 in |
The Q85SN and Q130SN are the smaller of the three Q-Series heating-only boilers. Their pages print minimum-input hero bullets of 17,000 and 26,000 BTU and central-heating capacities of 85,000 and 130,000 BTU, so the step between them is 45,000 BTU of heating capacity.
Both are heating-only: the pages print no DHW flow row and no cold-inlet/hot-outlet connections, unlike the Q175CN combi. Physically the Q130SN is 7 lb heavier (117 against 110 lb) and 0.2 in wider (19.7 against 19.7 in — both print the same 19.7 in width; the difference is weight). The maximum-input bullets on both pages are the truncated "N (maximum)" common to every Q solo page, so no numeric maximum is recorded.
The Q-Series pages print Residential ENERGY STAR "Yes" and SCAQMD Ultra Low NOx rows, a 3/4" MNPT gas connection and no AFUE or venting figures. The line is recorded as legacy: the pages are live but the current condensing-boilers navigation lists only the I-SERIES+.
Rinnai
The Rinnai Q85SN is a heating-only model in the Q-Series: a condensing boiler with a 85,000 BTU central-heating capacity and no domestic hot water production, at 110 lb.
Rinnai
The Rinnai Q130SN is a heating-only model in the Q-Series: a condensing boiler with a 130,000 BTU central-heating capacity and no domestic hot water production, at 117 lb.
The central-heating capacity: 85,000 against 130,000 BTU, with minimum inputs of 17,000 and 26,000 BTU and weights of 110 and 117 lb. Both are heating-only with the same cabinet depth and height.
No. Both are heating-only Q-Series boilers; domestic hot water comes from a separate tank or heater. The Q175CN is the combi in this line.
That is a page-print bug on every Q-Series solo page: the maximum-input hero bullet is truncated to 'N (maximum)'. Boilers.ca records the bullet as printed rather than reading 'N' as 'no maximum'.
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.