Hurst Boiler & Welding Co., Inc. · Series
Hurst Boiler & Welding Co., Inc. Firebox Series 100
The Hurst Firebox Series 100 is a three-pass firebox boiler with capacities documented from 8.5 to 813 HP (285 to 27,215 MBTU/HR) at 5 sq ft of heating surface per HP, for 15 PSI steam and 30 PSI water (60 PSI water optional).
Series facts
- Type
- non-condensing
- Efficiency
- Unknown
- Fuel
- Hurst lists flexibility for gas, oil, heavy oil and combination gas/oil firing.
- Venting
- Unknown
- Models documented
- 0
- Warranty
- Not verified
About the Firebox Series 100
Hurst's Firebox Series 100 page prints: 'Capacities From 8.5 to 813 HP 285 to 27,215 MBTU/HR. 15 PSI Steam 30 PSI Water (60 PSI Water Optional)', 'Efficient 3-Pass Design', 'Flexibility – Gas, Oil, Heavy Oil, and Combination Gas/Oil', ASME Code construction stamped for 15 PSI steam / 30 PSI water and National Board registration.
Standard features include a large furnace volume for combustion efficiency, a unified refractory base floor, steel skids and lifting eyes, low heat release at 5 sq ft per HP, 2" mineral wool factory insulation, factory jacketing and paint, easy fireside access and ample waterside cleanout openings.
The official Series 100 brochure prints the capacity table for sizes from 7.4 to 650 BHP. No official Canadian-sales statement was found.
Highlights
- Three-pass firebox boiler, capacities documented to 813 HP (285 – 27,215 MBTU/HR)
- 15 PSI steam, 30 PSI water (60 PSI water optional)
- 5 sq ft heating surface per HP; large furnace volume
- Gas, oil, heavy oil and combination gas/oil flexibility
Models
Firebox Series 100 models
One canonical page per model with input, output and efficiency kept separate.
Error codes and alerts
Firebox Series 100 alerts
No alerts documented for this series yet.
Manuals
Official documents
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.
Services for Hurst Boiler & Welding Co., Inc. boilers
Frequently asked questions
What sizes does the Firebox Series 100 cover?
The series page prints 8.5 to 813 HP and 285 to 27,215 MBTU/HR; the official brochure documents sizes from 7.4 to 650 BHP.
How much heating surface per horsepower?
Hurst prints 5 sq ft per HP on the Series 100 page.
Talk to a boiler technician
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
- Hurst — Firebox Series 100 product page · accessed September 9, 2026
- Hurst — Firebox Series 100 brochure (PDF) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.