Next Generation Watertube Technology

Apex boiler title card

Need a small, space and fuel efficient condensing boiler? Consider the Apex, from Thermal Solutions!

Apex uses the latest in compact water-tube boiler technology to create a boiler with lower water-side and gas-side pressure drops. The results are 30-50% smaller boiler pumps and easier venting. Smaller pumps saves up front and reducing operating electrical costs by up to 50%! The low gas-side pressure drop means the boiler can handle a longer flue length than competing products, giving more flexibility for venting. The design’s internal condensing chamber increases efficiency allows more latent heat to be captured in the tubes.

Apex efficiency curve chart

In addition to lower pump requirements, the Concert controls maximize savings with variable speed boiler pump technology, with Eco-Propel. Eco-propel decrease electrical usage, but more importantly, it also increases boiler efficiency. By varying the flow through the boiler to match the demand, the heat exchanger sees a larger temperature rise and thus, a lower average temperature. This lower average heat exchanger temperature translates to lower flue gas temp and increased efficiency – up to 3% reduction in fuel consumption.

Apex efficiency chart

The Apex design is also stackble, saving valuable floor space, in todays tight mechanical rooms. This is built-in to the boilers jacket design and requires no additional stands or frames! Thermal Solutions can also package Apex boilers onto a single skid, with all needed hydronic accessories for a complete primary loop, up to the hydraulic separator.

Apex Boilers logo


  • Concert Boiler Control w/ Eco-Propel, Variable Primary Pump Speed Capability
  • Standard Features
  • Color Touch Screen Display
  • Intuitive Navigation
  • Quick and Easy Setup Menu
  • Single Boiler Control
  • Multiple Boiler Control Sequencer
  • Communication Connects Up to 8 Boilers
  • Building Management System Interface; Modbus, LonWorks, BACnet
  • Unmatched Archives – 4 Months of Historical Operational Data
  • USB Port for Data Sharing
  • Self-Guiding Diagnostics – Industry-Leading Fault Identification & Correction Steps
  • Outdoor Air Reset
  • High & Low Voltage Fused Printed Circuit Boards (just replace fuse, not boards)
  • Built-in Brown-out Protection


  • 399 – 800 MBH
  • 97% AHRI Certified
  • Up to 99% Maximum Efficiency
  • Up to 50% Smaller Pumps
  • Reduced Electrical Consumption
  • Increased Venting Lengths
  • Stackable, by design; Eliminates Costly Stands
  • Design for Primary/Secondary and Variable-Primary/Variable-Secondary Systems
  • Concert Integrated Control Platform
  • Touchscreen Programming & Diagnostics
  • Modbus, LonWorks, BACnet BMS Integration
  • Low NOx & CO
  • Easy Installation & Maintenance

Additional Bryan & Thermal Solution Products:

  • DR, AB, RV, RW, CLM and EB Series; Flexible-Tube Steam and Hot Water: 250 – 17,640MBH
  • Bryan FreeFlex; Condensing Boiler, Stainless Watertube, 1,000 – 6,000MBH
  • Bryan B-Fit; Condensing Boiler, Stainless Watertube, 1,000 – 4,000MBH
  • Evolution Series; Condensing and Non-Condensing Boilers, Copper Fin & Stainless, 750 – 3,000MBH
  • Solaris; Hot Water Boiler, Copper Fin, 500 – 1,250MBH
  • Storage Tanks; Glass Lined
  • Skid Mounted Pacakges
  • Steam Boiler Accessory Equipment; Feed Systems, Deaerators, Blowdown Equipment and more.

For a more complete product list with additional details, please visit: and

To learn more about any of our exciting product lines, contact us today at:, or 336-299-3035

Jeff Lawley

After graduating from Florida State University with a B.S. in Mechanical Engineering, Jeff Lawley headed up the engineering department at Schaefer Interstate Railing. A few years later, he took an Engineering Sales position here at W.C. Rouse & Son, and over the next 8 years, he worked his way up to the position of President of the company.