Cleaver-Brooks Boiler Technology & Engineering

Nine decades of combustion research and thermal engineering — driving the performance standards that the industry measures itself against.

Core Technology Platforms

Engineering innovations that translate directly into measurable fuel savings, emissions reductions, and operational uptime for our customers.

Advanced Combustion Control

Linkageless parallel positioning systems with servo-driven air and fuel actuators, providing precise stoichiometric control across the full firing range. Integrated O2 trim continuously adjusts the air-fuel ratio, maintaining optimal combustion at 1-3% excess oxygen.

Ultra-Low Emissions Design

Engineered burner heads with staged combustion and flue gas recirculation (FGR) achieving sub-9 ppm NOx on natural gas. Meets SCAQMD Rule 1146.2 and the most stringent air district requirements without external SCR systems.

Intelligent Boiler Monitoring

Cloud-connected control platforms providing real-time visibility into flame status, stack temperature, water level, pressure trends, and efficiency metrics. Predictive analytics flag maintenance needs before unplanned shutdowns.

Condensing Heat Recovery

Stainless steel condensing heat exchangers capture latent energy from flue gases, boosting overall system thermal efficiency to 98%. Recovered heat pre-heats feedwater or serves building heating loops.

Modular System Architecture

Pre-engineered modular boiler plants with N+1 redundancy, common header assemblies, and integrated sequencing controls. Factory-assembled modules reduce on-site construction time by 40-60%.

Electrode Boiler Technology

High-voltage electrode boilers generating steam from 6 MW to 68 MW, enabling full electrification of thermal loads. Zero on-site combustion emissions with instant load response for grid-interactive demand management.

Boiler Type Comparison

Key engineering parameters across our primary boiler product lines.

Parameter Fire Tube Water Tube Electric Condensing
Capacity Range 15 - 800 HP 10,000 - 800,000 lbs/hr 9 kW - 52,000 lbs/hr 399 - 6,000 MBH
Max Operating Pressure 300 psig 750 psig 250 psig 160 psig
Thermal Efficiency 83 - 85% 82 - 87% 99%+ 95 - 98%
Fuel Options Gas / Oil / Dual Gas / Oil / Biomass Electricity Natural Gas
NOx Emissions < 9 ppm (ULN) < 20 ppm Zero < 20 ppm
Lead Time 12 - 16 weeks 18 - 26 weeks 10 - 14 weeks 12 - 16 weeks

Hawk ICS Integrated Control System

Our proprietary boiler control platform replaces standalone BMS, combustion controllers, and VFDs with a single unified system. The Hawk ICS delivers modulating turndown ratios of 25:1, manages lead/lag sequencing across multi-boiler plants, and provides full NFPA 85 compliance from a single HMI touchscreen.

Remote connectivity via secure cloud link allows our service team to diagnose issues and push firmware updates without dispatching technicians — reducing mean time to resolution by 60%.

Hawk ICS boiler control system interface

FlexTube Watertube Design

Our proprietary FlexTube water tube boiler architecture uses a compact D-type configuration with membrane wall construction, delivering rapid steam generation with minimal thermal stress. The design eliminates refractory-lined furnaces, reducing maintenance intervals and extending pressure vessel service life beyond 30 years.

Available with integral superheaters for process applications requiring 50-100F of superheat above saturation temperature.

FlexTube water tube boiler design

Explore the Engineering Behind Our Boilers

Download technical datasheets or schedule a consultation with our application engineering team.

Talk to an Engineer