High-Efficiency Integrated Control Systems for All Hurst Product Lines
Hurst Boiler's advanced Integrated Control Systems deliver complete boiler room monitoring and control for new and legacy Hurst equipment—plus compatibility with any manufacturer's boilers. With FireMaster and Focus, you gain integration, scalability, and the power to optimize efficiency, safety, and sustainability from a single platform. With BioMaster, you gain complete visibility and automated control over solid fuel combustion variables, enabling consistent, clean burns and dashboard-level command of every component in your biomass operation. With OxyMaster, you gain intelligent feedwater system management with adaptive feedback controls that automatically balance deaerator water level, steam supply, and pump output—ensuring optimal performance with minimal operator intervention. With BoilerMaster, you gain centralized command of up to four boilers and peripheral equipment, delivering real-time efficiency monitoring and remote access from any device while maintaining continuous synchronized operation across your entire steam and hot water plant.
The Hurst Advantage
Operational technology and IT integration is no longer optional—it's essential for competitive facility management.
Hurst intelligent control systems deliver:
Optimized fuel and combustion air management driving boiler efficiencies of 80–85%+
Lead-lag load balancing across multiple boilers to minimize cycling and fuel waste
Lower Fuel & Reduced Emissions precision air-to-fuel ratio maintains peak combustion reducing greenhouse gas and operating expense
Remote monitoring and control from anywhere via secure IIoT connectivity
Real-time alerts and insights that increase reliability and reduce downtime
Continuous Steam and Hot Water Demand Supply
Optimizes the boiler lead/lag operation by continually monitoring the
rate of change in steam pressure which allows multiple boilers to work
together efficiently to achieve system set points. Reduces boiler on-off
cycling due to system-load management.
Lower Fuel Costs and Reduced Emissions
Reduces greenhouse gas emissions by maintaining proper air-to-fuel ratios.
FireMaster: Advanced Single-Boiler Control
FireMaster is the complete, intelligent control system for optimal operation and monitoring of single boiler packages. With burner management, PLC-based processing, and a responsive HMI touchscreen, FireMaster combines sophisticated control capabilities with operator-friendly design.
Performance Specifications
Capacity Range: 300–2,500 HP boilers
Efficiency: 80% base model; 85%+ with optional economizer
Fuel Flexibility: Seamless gas/oil switching with automated changeover
Lead-Lag Capability: Simultaneous multi-boiler operation maintains constant header pressure
Surge Tank Capacity: 500–1,000 gallons
Superior Control Architecture
FireMaster integrates industry-leading components for reliability and precision:
PLC Processing: LAN-integrated Allen-Bradley or Siemens PLCs
Actuation: Fireye servos with built-in Modbus communication and diagnostics
Blower Management: Allen-Bradley or Siemens VFDs for optimized combustion airflow
Flame Safety: Honeywell 7800 series flame safeguard relay
Control Features
Complete boiler system integration includes:
Fuel-to-air ratio controls (parallel positioning)
Oxygen trim optimization
VFD combustion blower management
Economizer monitoring with efficiency feedback
Continuous water level control
Draft control and automatic low-fire hold
Real-time fuel management with steam flow totalization and calculated efficiency display
Connectivity & Integration
Large Color Display: 12″–19″ operator touchscreen with intuitive interface
Multi-Language Support: Seamless operation across regions
Industrial Protocols: Over 40 supported—including BACnet, Modbus, EtherNet/IP, and PROFINET
SCADA Integration: Easily connects to existing serial or TCP-based systems
Remote Access: Internet-based remote technical support via secure hardware VPN
Optional Enhancements
Draft sequence control
Cellular modem for internet connectivity
Alarm call-out, text (SMS), and email alerts
Native data logging to LAN or internet-accessible CSV files
Focus: Intelligent Cost-Effective Control
Focus delivers FireMaster's core control intelligence in a streamlined solution for cost-conscious operations. Like FireMaster, Focus is a complete boiler control system with integrated burner management, PLC processing, and HMI touchscreen—optimized for straightforward, dependable single-boiler operation.
Key Features:
Essential boiler control without VFD, O2 trim, or advanced transmitter data
Same operator-friendly HMI interface and configuration flexibility
Full integration with supervisory control systems
Modular, service-friendly design for easy maintenance
OxyMaster: Precision Deaerator Control
OxyMaster automates boiler feedwater system management with intelligent, feedback-based PLC control of deaerator water level, steam supply, and feedwater pump output. The intuitive HMI provides practical access to all parameters, alarms, and historical trending.
Key Features:
Adaptive feedback controls for deaerator operations
Multiple pump control options: lead-lag capability, variable speed drives, lead pump rotation
Configurable for site-specific requirements
Easy integration into supervisory control systems
BioMaster: Intelligent Biomass Control
BioMaster solves the challenges of solid fuel combustion with automated monitoring and control. The intuitive operator interface displays all motors, devices, and processes in real-time, with instant access to system parameters and controls. Accounting for fuel moisture variations and inconsistent BTU values, BioMaster delivers a constant, clean burn through intelligent fuel-feed and peripheral equipment management. Hurst delivers end-to-end wood-fired boiler systems from fuel receipt through ash disposal. Every major component—fuel storage, boilers, furnaces, conveyors, pollution control systems, and electrostatic precipitators—is designed, engineered, manufactured, and installed by Hurst for seamless integration and optimal performance. Direct-fired units are also available for biomass or natural gas-fueled continuous kiln drying applications.
Key Features:
Efficient fuel management – Automatically compensates for varying moisture content and BTU values in solid fuels to maintain consistent, clean combustion and peak efficiency
Complete operational visibility – Dashboard HMI displays all motors, devices, and processes in real-time, giving operators instant access to every critical system function
Adaptive control logic – Lead-lag pump capabilities and variable speed drives optimize performance based on your specific operating conditions
Simplified operation – Intuitive touchscreen interface reduces complexity of biomass combustion control, minimizing operator training time and human error
Single biomass boiler optimization – Purpose-built for wood-fired and solid fuel systems with full integration capability into supervisory control platforms
BoilerMaster: Unified Multi-Boiler Management
BoilerMaster consolidates up to four boilers and auxiliary equipment under centralized control. Monitor and manage all steam and hot water operations from an on-site color touchscreen or remotely via secure internet on any browser-enabled device. Real-time synchronization of multiple boilers to maintain system setpoints efficiently and reduce unnecessary on-off cycling.
Key Features:
Real-time efficiency and operating data continuously reported and archived
Complete system visibility and customizable controls optimized to your equipment
Secure remote access from computer or smartphone
Integration with existing SCADA systems
Daily historical logging for trend analysis, efficiency tracking, and performance optimization

Decades of Experience: Hurst has been manufacturing world class boilers since 1967
Exclusive Design: Hurst’s boilers and control systems are proprietary and always innovating
Proven Reliability: Industry-leading components from trusted well-vetted manufacturers
Scalable Architecture: Grow from single-boiler systems to multi-unit coordination
Retrofit-Ready: Upgrade legacy equipment without complete replacement
Future-Proof: Hurst’s control systems are designed with upgradability built-in
IIoT Ready: Modern internet connectivity and seamless SCADA/BMS integration
Expert Staff: Design, consultation, installation, onsite and remote technical support
Comprehensive Design & Installation Solutions
System Upgrades & Retrofit Services
Hurst Design professionals evaluate your existing boiler control system and recommend targeted enhancements—from identifying critical replacement parts and converting to reliable electronic controllers, to complete modernization with current-generation components. Hurst can retrofit existing boiler systems with contemporary smart monitoring systems allowing for industrial internet of things functionality. Hurst also offers complete control system replacement with our modern system designs for maximum return on investment.
Integrated Installation & Engineering
Leveraging complete in-house manufacturing capability, Hurst designs and fabricates boilers, furnaces, conveyors, storage systems, piping assemblies, and control panels. We seamlessly integrate sophisticated electrical, computer, and control systems with your facility infrastructure—including deaerators, emission reduction equipment, CEMS monitoring, and cogeneration systems.