Fulton VANTAGE VTG-6000
The Fulton VANTAGE VTG-6000 is a condensing firetube commercial hydronic boiler rated 6,000,000 BTU/hr input and 5,640,000 BTU/hr output at 94% thermal efficiency, with up to 5:1 natural-gas turndown per the official Vantage TDS.
Key figures
- Max input
- 6,000,000 BTU/h
- Max CSA output
- 5,640,000 BTU/h
- AFUE
- —
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Fulton VANTAGE VTG-6000 in practice
The VTG-6000 is the 6 MMBTU/hr size of Fulton's VANTAGE condensing firetube line. The Standard Technical Data Sheet (VTG_TDS_241118) prints 6,000,000 BTU/hr rated input, 5,640,000 BTU/hr rated output at 94% thermal efficiency and 168 boiler horsepower, with 6" ANSI 150# FLG water connections, a 2-1/2" NPT gas connection, a 12 in combustion air intake and a 14 in flue vent.
The VANTAGE is built on a high-mass duplex-stainless vessel; the Standard TDS prints a typical flow of 564 gpm at a 20°F rise and no minimum flow requirement, and the page carries a lifetime thermal-shock warranty. Dual-fuel VTG-DF variants at the same sizes add #2 oil back-up and are documented in the separate VTG-DF Technical Data Sheet (250909).
Best suited to
- Commercial hydronic loads near 6,000,000 BTU/hr input
- Plants wanting a high-mass firetube with no minimum flow requirement
- Buildings planning a future #2 oil back-up conversion (VTG-DF variants)
Applicability and support
- Model number
- VTG-6000
- 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 Fulton. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Rated input | 6,000,000 BTU/h | Rated input 6,000,000 BTU/hr printed in the Vantage Standard TDS (VTG_TDS_241118). |
| Output | ||
| Rated output | 5,640,000 BTU/h | Rated output 5,640,000 BTU/hr (BTS-2000) printed in the Vantage Standard TDS. |
| Boiler horsepower (BTS-2000) | 168 | Boiler horsepower 168 (BTS-2000) printed in the Vantage Standard TDS. |
| Efficiency | ||
| AHRI thermal efficiency | 94 % | Thermal efficiency 94% (BTS-2000) printed in the Vantage Standard TDS. |
| Venting and air | ||
| Combustion air intake | 12 in | Combustion air intake (ID) per the Vantage Standard TDS. |
| Flue gas exhaust | 14 in | Flue gas exhaust vent (ID) per the Vantage Standard TDS. |
| Physical and connections | ||
| Water connections | 6" ANSI 150# FLG | Boiler supply and return connections (ANSI 150# flanged) per the Vantage Standard TDS. |
| Gas connection | 2-1/2" NPT | Natural gas train inlet per the Vantage Standard TDS. |
| Dry weight | 10,800 lb | Dry weight 10,800 lb printed in the Vantage Standard TDS; operating weight 14,800 lb. |
| Water volume | 480 gal | Pressure vessel water volume 480 gal printed in the Vantage Standard TDS. |
| Operating limits and other | ||
| Turndown | Up to 5:1 (natural gas) | The Standard TDS prints typical burner turndown up to 5:1 on natural gas; propane as a secondary fuel is up to 3:1. |
| Typical flow at rated output, 20°F ΔT | 564 GPM | Printed in the Vantage Standard TDS flow table; maximum ΔT capable is 100°F with no minimum flow requirement. |
| Fuel | Natural gas, propane and #2 oil (dual-fuel DF variants) | The standard VTG models are rated on natural gas with propane as a secondary fuel; the dual-fuel VTG-DF variants add #2 oil back-up and are documented in the separate VTG-DF Technical Data Sheet (250909). |
Manuals
- Fulton Vantage (VTG) — Installation, Operation, and Maintenance Manual (VTG-IOM-250618)250618
- Fulton Vantage (VTG) Standard — Technical Data Sheet (VTG_TDS_241118)241118
- Fulton Vantage DF (VTG-DF) — Dual Fuel Gas & Oil Technical Data Sheet (VTG-DF_TDS_250909)250909
- Fulton Vantage (VTG-2000-6000) — Guide Specification (VTG-2000-6000_GS_240222)240222
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the VANTAGE VTG-6000 ratings?
The official Standard TDS prints 6,000,000 BTU/hr input, 5,640,000 BTU/hr output and 94% thermal efficiency at 168 boiler horsepower.
Is the VTG-6000 dual-fuel?
The standard VTG models run natural gas with propane as a secondary fuel; the dual-fuel VTG-DF variant at the same size adds #2 oil back-up and is documented in the VTG-DF Technical Data Sheet (250909).
Is there a minimum flow requirement?
The Vantage Standard TDS prints no minimum flow requirement — a low or zero flow situation will not harm the heat exchanger.
Questions about the Fulton VANTAGE VTG-6000?
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
- Fulton — VANTAGE product page · accessed September 9, 2026
- Fulton — Vantage (VTG) Standard Technical Data Sheet (VTG_TDS_241118) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.