Utica Boilers · UB90-200 Series II (UB90-125 to UB90-200)
Utica UB90-175 (Series II)
The Utica UB90-175 is the third of the four UB90-200 Series II sizes (175 MBH class) — a 90% AFUE condensing boiler on the cast aluminum monoblock heat exchanger with the Fuel Smart Hydrostat control. The UB90-200 Series II page prints no current documents, so this model is recorded as discontinued.
Key figures
- Max input
- —
- Max CSA output
- —
- AFUE
- 90 %
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Utica UB90-175 (Series II) in practice
The UB90-175 is the third of the four UB90-200 Series II sizes (175 MBH class) of the UB90-200 Series II line Utica documents at 90% AFUE: a cast aluminum monoblock heat exchanger with low pressure drop, the Fuel Smart Hydrostat control (temperature limit with dial settings and function indicator lights, LWCO and boiler reset in one control), a stainless steel pre-mix burner with hot surface igniter and forced draft blower, and economical CPVC and PVC venting, backed by a limited 15-year warranty.
Status as printed: the UB90-200 Series II product page's 'Current Documents' tab reads 'Sorry, There are no current documents for this product!' and all Series II literature is archived, so this model is recorded with productStatus 'discontinued' — serviceable against the archived IOM Rev. D but no longer an active catalogue item. The smaller UB90 Series 4 sizes (UB90-50/75/100) keep their own current-document page and series record.
The Fuel Smart Hydrostat uses diagnostic indicator lights rather than a discrete fault-code display, so no error-code pages are published for this model. The ratings are the US-market figures Utica prints; no Canadian listing was verified, so canadianStatus stays 'unknown'. Gas work belongs with a licensed contractor against the archived documentation for the specific unit.
Best suited to
- Larger heating-only installations in the UB90-175 class where the archived Series II documentation applies
- Owners of an installed Series II UB90 identifying their unit's status and documentation
Applicability and support
- Model number
- UB90-175
- Canadian availability
- unknown
- Production status
- discontinued
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Series terms
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.
Specifications
Published specifications
Values as published by Utica Boilers. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Efficiency | ||
| AFUE | 90 % | 90% AFUE as printed on the UB90-200 Series II product page and recorded in the research headline; ENERGY STAR rated. |
| Venting and air | ||
| Venting | Sealed combustion, direct vent; CPVC and PVC vent pipe | The Series II 'utilizes economical CPVC and PVC vent pipe', as printed on the product page. |
| Physical and connections | ||
| Heat exchanger | Cast aluminum monoblock | High-efficiency cast aluminum monoblock heat exchanger with low pressure drop, as printed on the product page. |
| Operating limits and other | ||
| Control | Fuel Smart Hydrostat — temperature limit, LWCO and boiler reset in one control | 3-in-1 Fuel Smart Hydrostat with dial settings and function indicator lights, as printed on the product page. |
| Warranty | Limited 15-year warranty | As printed on the official UB90-200 Series II product page. |
| Official status | 'Sorry, There are no current documents for this product!' | The product page's Current Documents tab prints this message; all literature is archived, so Boilers.ca records the Series II as discontinued. |
Alerts documented for this model
None documented yet.
Frequently asked questions
What is the UB90-175?
It is the third of the four UB90-200 Series II sizes (175 MBH class) of the UB90-200 Series II — a 90% AFUE condensing boiler on the cast aluminum monoblock heat exchanger with the Fuel Smart Hydrostat control.
Is the UB90-200 Series II discontinued?
The product page prints 'Sorry, There are no current documents for this product!' with all literature archived, so Boilers.ca records the Series II models as discontinued.
Is the UB90-200 Series II a combi boiler?
No — it is a heating-only hot water boiler; domestic hot water is handled separately.
Questions about the Utica UB90-175 (Series II)?
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.
Compare and explore
- Utica UB90-150 (Series II) vs Utica UB90-175 (Series II)Comparison
- Utica UB90-175 (Series II) vs Utica UB90-200 (Series II)Comparison
- Utica UB90-125 (Series II) vs Utica UB90-175 (Series II)Comparison
- Utica UB90-125 (Series II)Same series
- Utica UB90-150 (Series II)Same series
- Utica UB90-200 (Series II)Same series
- UB90-200 Series II (UB90-125 to UB90-200) series hub
- Buying guide
Sources and verification
- Utica Boilers — UB90-200 Series II product page (0 current documents) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.