Fulton ENDURA EDR-1500
The Fulton ENDURA EDR-1500 is a condensing duplex-stainless firetube commercial hydronic boiler rated 1,500,000 BTU/hr input and 1,402,500 BTU/hr output at 93.5% thermal efficiency, with 11:1 turndown per the official Endura TDS.
Key figures
- Max input
- 1,500,000 BTU/h
- Max CSA output
- 1,402,500 BTU/h
- AFUE
- —
- Min input
- 133,000 BTU/h
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Fulton ENDURA EDR-1500 in practice
The EDR-1500 is the 1,500 MBH size of Fulton's ENDURA condensing boiler, built on a fully-wetted three-pass duplex-stainless firetube heat exchanger. The official Technical Data Sheet (EDR-PURE_TDS_221110) prints 1,500,000 BTU/hr rated input, a 133,000 BTU/hr low fire, 1,402,500 BTU/hr rated output at 93.5% thermal efficiency and 11:1 burner turndown, with 4" ANSI 150# FLG water connections, a 1-1/2" NPT gas train inlet, a 8 in combustion-air inlet and a 6 in minimum flue vent.
The boiler holds 104 gal in the pressure vessel and weighs 2,260 lb dry and 3,128 lb operating. Fulton publishes the Endura I&O manual (EDR-PURE-IOM-260219), the TDS and the guide specification as public documents, and the line is designed for variable primary flow hydronic systems.
Best suited to
- Commercial hydronic loads near 1,500,000 BTU/hr input
- Plants wanting a high-water-volume firetube design tolerant of variable flow
- Retrofit boiler rooms needing a compact condensing footprint with low NOx
Applicability and support
- Model number
- EDR-1500
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
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 | 1,500,000 BTU/h | Rated input 1,500,000 BTU/hr printed in the Endura TDS (EDR-PURE_TDS_221110). |
| Minimum input | 133,000 BTU/h | Minimum input at low fire 133,000 BTU/hr printed in the Endura TDS. |
| Output | ||
| Rated output | 1,402,500 BTU/h | Rated output 1,402,500 BTU/hr (BTS-2000) printed in the Endura TDS. |
| Boiler horsepower (BTS-2000) | 41.9 | Boiler horsepower 41.9 (BTS-2000) printed in the Endura TDS. |
| Efficiency | ||
| AHRI thermal efficiency | 93.5 % | Thermal efficiency 93.5% (BTS-2000) printed in the Endura TDS. |
| Venting and air | ||
| Combustion air intake | 8 in | Combustion air inlet (adapter required) per the Endura TDS. |
| Flue gas exhaust | 6 in | Minimum flue gas exhaust vent (adapter required) per the Endura TDS. |
| Physical and connections | ||
| Water connections | 4" ANSI 150# FLG | Boiler supply and return connection per the Endura TDS. |
| Gas connection | 1-1/2" NPT | Natural gas train inlet per the Endura TDS; propane is a documented option with the EDR-1500 exception noted in the TDS. |
| Dry weight | 2,260 lb | Dry weight 2,260 lb printed in the Endura TDS; operating weight 3,128 lb. |
| Water volume | 104 gal | Pressure vessel water volume 104 gal printed in the Endura TDS. |
| Operating limits and other | ||
| Turndown | 11:1 | Burner turndown 11:1 printed in the Endura TDS. |
| Fuel | Natural gas or propane | The Endura TDS is written for standard natural gas and documents propane operation, with the EDR-1500 not available for propane (a derated EDR-2000 is offered for those applications). |
Manuals
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the ENDURA EDR-1500 ratings?
The official TDS prints 1,500,000 BTU/hr input, 1,402,500 BTU/hr output, 93.5% thermal efficiency and 11:1 turndown.
Does the EDR-1500 run on propane?
No — the Endura TDS states the EDR-1500 is not available for propane operation; a derated EDR-2000 is offered for those applications with up to 3:1 burner turndown.
Which manual covers the ENDURA?
Fulton publishes the Endura I&O manual (EDR-PURE-IOM-260219) and the Technical Data Sheet (EDR-PURE_TDS_221110) as public documents.
Questions about the Fulton ENDURA EDR-1500?
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 — ENDURA product page · accessed September 9, 2026
- Fulton — Endura (EDR) Technical Data Sheet (EDR-PURE_TDS_221110) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.