Utica Boilers · SVB Series 4 (SVB-2 to SVB-6)
Utica SVB-4
The Utica SVB-4 is a size in the current SVB Series 4 cast-iron water line: 112.5 MBH fixed input, 95 MBH heating capacity, a 82 MBH net AHRI water rating and 84% AFUE, with induced-draft chimney (4") or sidewall (3") venting. It is tagged 'Current' on Utica's Gas Boilers category page.
Key figures
- Max input
- —
- Max CSA output
- —
- AFUE
- 84 %
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Utica SVB-4 in practice
The SVB-4 is one of the SVB Series 4 sizes Utica prints in its official sell sheet: 112.5 MBH fixed input for 95 MBH heating capacity and a 82 MBH net AHRI water rating at 84% AFUE, with 4.25 gal of boiler water, 17½ × 29 × 23¼ in cabinet dimensions and a 322 lb shipping weight.
It is a non-condensing cast-iron boiler with an induced-draft fan that allows flue gases to be exhausted through a chimney (4") or sidewall (3") vent — Utica positions the venting flexibility for new or existing homes with or without a chimney. The control is a recessed Honeywell high-limit/electronic-ignition design with digital temperature display, diagnostics and plug-in connections for the inducer fan and system pump; the cast-iron sections use cast-iron push nipples and the burners are titanium composite.
Safety devices include a flame roll-out safety shut-off (fuse link) and a pressure switch (vent safety shutoff) with a spare fuse link included, and Utica prints a 20-year non-prorated limited residential warranty. Official discrepancy to note: the product page text says 'six sizes from 42.5 MBH to 187.5 MBH' while the current sell sheet prints five rows (SVB-2 through SVB-6) — Boilers.ca models the five printed rows. The category card carries the 'Current' tag (checked 2026-09-09), and gas, venting and combustion work belongs with a licensed contractor.
Best suited to
- Homes whose heat-loss calculation fits 112.5 MBH of fixed input
- Retrofits with or without an existing chimney (chimney or sidewall venting)
- Owners of an installed SVB identifying their size and documentation
Applicability and support
- Model number
- SVB-4
- Canadian availability
- unknown
- Production status
- current
- 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 |
|---|---|---|
| Input | ||
| Input | 112.5 MBH | Fixed input in MBH as printed in the official SVB Series 4 sell sheet (PN 240009708 Rev. 09/04/26); the SVB does not modulate. |
| Output | ||
| Heating capacity | 95 MBH | Heating capacity in MBH as printed in the official SVB Series 4 sell sheet. |
| Net AHRI water rating | 82 MBH | Net AHRI water rating in MBH as printed in the official SVB Series 4 sell sheet. |
| Efficiency | ||
| AFUE | 84 % | AFUE as printed for this size in the official SVB Series 4 sell sheet. |
| Venting and air | ||
| Vent — chimney | 4" | Chimney vent diameter as printed in the official sell sheet; an induced-draft fan allows chimney or sidewall exhaust. |
| Vent — sidewall | 3" | Sidewall vent diameter as printed in the official sell sheet. |
| Venting | Induced-draft fan — chimney or sidewall exhaust | The induced-draft fan pulls flue gases through the boiler and exhausts them through a chimney or sidewall vent, per the product page. |
| Physical and connections | ||
| Boiler water content | 4.25 gal | Boiler water content in gallons as printed in the official sell sheet. |
| Dimensions (W x H x D) | 17½ × 29 × 23¼ | Cabinet dimensions in inches as printed in the official sell sheet. |
| Shipping weight | 322 lb | Shipping weight in pounds as printed in the official sell sheet. |
| Operating limits and other | ||
| Control | Recessed Honeywell high-limit/electronic-ignition control with digital temperature display and diagnostics | Plug-in connections for the inducer fan and system pump; the control monitors water temperature and delays burner start until residual heat has been transferred, per the product page. |
| Connections | Cast-iron sections with cast-iron push nipples; titanium composite burners; 24 V gas control system | Safety devices include a flame roll-out safety shut-off (fuse link) and a pressure switch (vent safety shutoff) with a spare fuse link included, per the product page. |
| Warranty | 20-year non-prorated limited warranty (residential) | As printed on the official SVB Series 4 product page. |
Manuals
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the SVB-4's ratings?
112.5 MBH fixed input, 95 MBH heating capacity, a 82 MBH net AHRI water rating and 84% AFUE, per the official SVB Series 4 sell sheet.
Can the SVB-4 vent through a sidewall?
Yes — the induced-draft fan allows chimney or sidewall exhaust: 4" chimney and 3" sidewall for this size, per the official sell sheet.
Is the SVB-4 a condensing boiler?
No — it is a non-condensing cast-iron boiler with an induced-draft fan and chimney or sidewall exhaust.
Questions about the Utica SVB-4?
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
- Utica Boilers — Gas Boiler, SVB Series 4 product page · accessed September 9, 2026
- SVB Series 4 Sell Sheet Rev. 09/04/26 (PN 240009708) · accessed September 9, 2026
- SVB Series 4 IOM Rev. A (PN 240013870) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.