Slant/Fin VSPH-120
The Slant/Fin Victory VSPH-120 fires 120,000 Btuh fixed input across 5 cast-iron sections: a discontinued, NON-condensing, floor-standing direct-vent boiler whose 3" stainless flue steps down from 40 to 30 ft with elevation.
Key figures
- Max input
- 120 MBH
- Max CSA output
- —
- AFUE
- —
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Slant/Fin VSPH-120 in practice
The VSPH-120 sits in the middle of the Victory VSPH series: a cast-iron, gas-fired, floor-standing boiler that is NOT condensing, firing a fixed 120,000 Btuh across 5 cast-iron sections. It is mechanically induced draft with a sealed-combustion direct-vent, positive-pressure flue in 3" UL-listed AL29-4C stainless steel only, and carries the factory condensate drain and water trap for partial flue-gas condensation in the blower discharge. Jacket width (A) is 17-1/8" with dimension B 23-3/8" per Figure 1 (+1-1/2" height and 28-1/2" depth with the combustible floor kit).
The I&O venting table allows 40 ft of flue at 0–5,000 ft elevation, 35 ft at 5,000–7,500 ft and 30 ft at 7,500–10,000 ft on Heat-Fab Saf-T / EZ Seal systems (air intake 40 ft at all altitudes); Z-Flex Z-Vent (35/30/25 ft) and ProTech FasNSeal (30/25/20 ft) runs are shorter. The HydroStat 3000 control (LED diagnostics) runs natural gas or field-converted LP at 50 psi ASME MAWP with a 30 psi relief valve.
The line is discontinued — Slant/Fin lists the VSPH under 'Vintage' — and the official library page hosts 2018 heat-exchanger RECALL notices that owners of a VSPH-120 should check for their unit's date range. canadianStatus stays 'unknown'; gas and venting work belongs with a licensed contractor.
Best suited to
- Mid-size homes with a 120,000 Btuh-class direct-vent load in stainless steel venting
- Owners verifying VSPH-120 vent-run limits by altitude and recall status
- Documenting the middle of the discontinued Victory VSPH range
Applicability and support
- Model number
- VSPH-120
- 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 Slant/Fin. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input | 120 MBH | 120,000 Btuh fixed gas input per the ratings and dimensions data in the VSPH I&O manual (Pub. VSPH-41 Rev. C). |
| Domestic hot water | ||
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect water heater (indirect connections supported by the control) | |
| Venting and air | ||
| Venting | Direct vent, sealed combustion — mechanically induced draft, positive-pressure flue: 3" diameter UL-listed AL29-4C stainless steel only (Heat-Fab Saf-T Vent / Saf-T EZ Seal, ProTech FasNSeal, Flex-L StaR-34 or Z-Flex Z-Vent); NO PVC/plastic or galvanized flue; no vent damper; common venting not allowed | Minimum flue length 2 ft; max equivalent lengths by model and vent-system manufacturer. Combustion air intake: 3" PVC Schedule 40 or galvanized steel. Flue gas may partially condense in the blower discharge — the boiler has a factory condensate drain and water trap. |
| Max. flue equivalent length (Heat-Fab Saf-T / EZ Seal) | 40 ft (0–5,000 ft) / 35 ft (5,000–7,500 ft) / 30 ft (7,500–10,000 ft) | By elevation band 0–5,000 / 5,000–7,500 / 7,500–10,000 ft per the I&O manual's venting table; other listed systems allow shorter runs (e.g. ProTech FasNSeal). |
| Physical and connections | ||
| Cast-iron sections | 5 | Cast-iron sections assembled with metal push nipples (ASME 'H' stamp), per the VSPH I&O manual Figure 1. |
| Operating limits and other | ||
| Fuel | Natural gas or propane | Field-convertible NG-to-LP gas valve; orifice chart covers elevations to 10,000 ft (4% derate per 1,000 ft). |
| Maximum allowable working pressure (MAWP) | 50 psi | 50 psi ASME working pressure with a factory-supplied 30 psi safety relief valve, per the VSPH master specification. |
Manuals
- Victory VSPH Series Installation and Operating Instructions — Pub. VSPH-41 Rev. C (P/N 455056)VSPH-41 Rev. C (P/N 455056) · 2019-08
Alerts documented for this model
Frequently asked questions
What are the VSPH-120's basic specs?
120,000 Btuh fixed input, 5 cast-iron sections, 17-1/8" jacket width (A) and dimension B 23-3/8" per the VSPH I&O manual.
How long a flue can the VSPH-120 run?
40 ft maximum equivalent at 0–5,000 ft, 35 ft at 5,000–7,500 ft and 30 ft at 7,500–10,000 ft on Heat-Fab Saf-T / EZ Seal systems.
Is the VSPH-120 condensing?
No — non-condensing cast iron with a direct-vent positive-pressure flue that must be 3" AL29-4C stainless steel.
Questions about the Slant/Fin VSPH-120?
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
- Slant/Fin — library: Victory VSPH series (Vintage; manuals and recall notices) · accessed September 8, 2026
- Victory VSPH Series Installation and Operating Instructions — Pub. VSPH-41 Rev. C (P/N 455056) (PDF) · VSPH-41 Rev. C · accessed September 8, 2026
Facts checked September 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.