RBI® - Commercial Boilers

The Encore represents the completion of RBI’s firetube boiler sizes. The company offers its Flexcore boiler at a range of 850–6 million MBh. Now, the Encore provides a new lower end to that range (349–850 MBh), perfect for residential and light commercial applications.

Encore features a compact footprint, flexible venting options, and optional online remote monitoring. It’s easy to install, service, and maintain, as Encore’s firetube heat exchanger uses a unique anti-scaling baffling system for maximum durability and corrosion resistance. Encore boilers are capable of reliable full-fire performance at just 4 inches of gas pressure.

Encore can also act as a complementary technology in the decarbonization and electrification of buildings. It is ideal for pairing with a geothermal well field or water-source heat pump arrangement, adding more heating capacity to balance the loads from winter to summer.

Features

• Available in 349, 400, 500, 600, 725, and 850 MBh models
• AHRI 98% thermal efficiency
• Full modulation, up to 10:1 turndown (though the 349 MBh model offers 7:1 turndown, as it is more of a down-fired product)
• Equipped with a 316L stainless steel heat exchanger
• Dual fuel options: natural gas, propane, or both if needed.
• HeatNet controller, 7-inch touchscreen. Made in-house by RBI and easy to service
• Works with CPVC, PVC, and polypropylene venting, as well as stainless steel venting. The standard adaptor is CPVC- and PVC-ready, while a stainless steel adapter is available.
• Works with variable primary (VPF) and primary/secondary piping arrangements.
• Maximum 60 °F delta T

Torus boilers and water heaters bring next-level performance in a small compact footprint to today’s applications.

The RBI tradition of high quality, performance equipment in a user-friendly design continues with Torus.

Incorporating all industry-proven components including HeatNet 3.0 touchscreen cascade control and our Tru-Flow fuel/ air coupling system and capacities to 4000 MBH Torus has the solution for all commercial installations.

Features and Benefits

• 1250 – 4000 MBH
• +96.5% AHRI Certified Boiler Efficiency
• 4 Pass Double-Row Heat Exchanger (160 psi/ASME (H & HLW) Stamp)
• 316L Stainless Steel
• Variable Volume, Full-Flow and Primary/Secondary
• Full Modulation (5:1 water heater / 5:1 boiler)
• HeatNet 3.0 Integrated Control Platform
• Touchscreen Programming and Diagnostics
• Modbus, LonWorks, and BACnet BMS Integration
• Low NOx and CO
• Easy Maintenance and Installation
• Category II and IV (up to 160′)
• PVC/CPVC, Polypropylene, and Stainless Steel Vent Approved

FlexCore Symmetrical Firetube boilers bring hydronic heating products to unprecedented levels of operating efficiency.

Unlike other manufacturers; from start to finish the FlexCore was designed, developed and engineered by the experts at RBI.

Engineered for performance and longevity the FlexCore utilizes a perfectly temperature balanced heat exchanger that provides not only the highest efficiencies but also a durability beyond that of any competitive firetube boiler on the market.

Features and Benefits

• Up to 99% Maximum Efficiency
• 850 – 9,000 MBH
• 95%+ AHRI Certified
• Symmetrical Firetube Heat Exchanger
• Variable Volume Flow
• Full Modulation
• Patented “Turbo Pilot” Ignition
• HeatNet 3.0 Integrated Control Platform
• Touchscreen Programming & Diagnostics
• Low NOx & CO
• Modern Jacket Design
• Superior Durability
• Easy Installation & Maintenance

When it comes to high efficiency and even higher BTU capacities, RBI’s Futera Fusion XLF is in a class of its own. By combining the best features of the Futera Fusion and Futera XLF systems, the engineers at RBI have created a new commercial boiler system that increases output levels while maintaining ultra-high efficiencies – the likes of which have never been seen within the commercial boiler market.

As a fully condensing, gas-fired boiler, the Fusion XLF features an innovative design that brings superior power and energy efficiency with premium boiler performance and serviceability, all together in an unprecedented, industry-leading, small package design.

Ideal for commercial boiler applications with low operating, return or make-up water temperatures, the Fusion XLF is capable of reaching efficiencies as high as 99% at full input. With full modulation up to 5:1, the firing system continuously varies the energy input to match the heating load without overfiring and wasting fuel – providing extremely high part-load efficiencies.

The Fusion XLF also features HeatNet 3.0, an intuitive boiler control system that monitors system characteristics and modulates boiler firing rates, maximizing turndown ratios and maintaining peak efficiency, regardless of the load.

Features and Benefits

• Up to 99% Efficiency
• Full Modulation with Continuous, 5:1 Turndown
• Sealed Combustion/Direct Vent
• Symmetrically Air/Fuel Coupled
• Commercial Combustion Controls
• HeatNet 3.0 Integrated Boiler Control Platform
• Gasketless Heat Exchanger Assembly

The gas-fired Futera Fusion now brings the field-proven performance of Futera III commercial boilers and water heaters to the ultimate levels of efficiency and reliability. Unlike most condensing products available today that produce the highest efficiencies at the lowest inputs, the Fusion steps it up a notch by attaining efficiencies as high as 99% at full input. The full modulation firing system continuously varies the energy input to precisely match heating load without overfiring or wasting fuel.

The Fusion’s heat exchanger was designed using the most efficient and dependable heat transfer materials available today. The low-mass, gasketless primary heat exchanger has solid cast iron headers and finned copper (or optional cupronickel) tubing for superior heat transfer, resistance to scaling and protection against thermal shock.

The benefits don’t stop there. The condensing secondary heat exchanger is constructed from solid stainless steel and is designed to operate at the boiler’s full flow rate. The unit operates in full condensing mode at all times, while a state-of-the-art temperature mixing system protects the boiler’s primary heat exchanger. In addition, this design also offers a larger heat transfer surface area – more so than any competitive product currently available. Simply put, there is no better way to protect your investment.

Features and Benefits

• Full Modulation with Continuous, 4:1 Turndown
• Sealed Combustion/Direct Vent
• Symmetrically Air/Fuel Coupled
• Commercial Combustion Controls
• HeatNet 3.0 Integrated Boiler Control Platform
• Gasketless Heat Exchanger Assembly

Part of RBI’s stainless steel line of high-efficiency boilers and water heaters, Infinite Energy² is available from 199 to 1000 MBH, providing flexible solutions for all of your heating and domestic hot water system needs. Utilizing state-of-the-art Radial Variable Circulation (RVC) stainless steel heat exchangers, IE² maximizes heat transfer with operating efficiencies up to 98%.

Using all of today’s modern technologies, including pre-mix burners, modulating firing rates up to 20:1 and integrated cascade controls, IE² offers superior performance and application flexibility. Units are PVC, polypropylene and stainless steel vent capable and can be installed in multiple unit configurations using its onboard boiler control configuration – providing flexible modulation for maximum efficiencies.

Features and Benefits

• Up to 98% Ultra-High Efficiency
• RVC Stainless Steel Heat Exchanger
• PVC, PPandStainless Steel Venting
• Intuitive Integrated Control Platform
• Multi-unit Cascade Communication
• Pre-Mix Burner Technology
• Low NOx and CO Emissions
• 3″ Minimum Gas Pressure
• 160 PSI Working Pressure
• Integrated Condensate Neutralizer System
• Full Modulation

As part of the Futera line – RBI’s flagship series of boilers and hot water heaters that offer the most versatile, durable and energy efficient units across both near and full condensing offerings – the gas-fired Futera III features full modulation with 4:1 turndown while supplying the precise amount of heat necessary to maintain desired building temperature by matching heating demand without overfiring or wasting energy.

These dependable, easy-to-service boilers feature rugged construction and sleek, stainless steel jacket design. With models ranging from 500-1999 MBH, all Futera III units come equipped with HeatNet 3.0 boiler control software, ensuring the highest operating efficiencies of any domestic boiler and hydronic heating system on the market.

Features and Benefits

• 88% Maximum Efficiency
• 500-1,999 MBH
• Full Modulation with 4:1 Turndown
• Cast Iron Headers (Boilers)
• Bronze Headers (Water Heaters)
• HeatNet 3.0 Integrated Boiler Management System
• Copper Finned Tube Heat Exchanger
• Symmetrically Air/Fueled Coupled
• Gasketless Heat Exchanger Assembly
• Modbus Protocol for BMS Communications
• Stainless Steel Jacket Panels

Futera II Series hot water supply boilers provide dependable boiler performance with 85% efficiency levels, alongside industry-leading NOx levels of less than 10 ppm. With sizing that ranges from 500 to 1,950 MBH, the Futera II provides a high concentration of BTUs in a small footprint, making it an excellent choice for jobs where mechanical space is limited, as well as other modular, step-fired boiler applications.

The Futera II’s compact, low maintenance boiler and venting flexibility permit easy boiler installation and service, making it the ideal non-condensing, gas-fired boiler and hot water heater for any hot water supply application. Futera II units have the ability to use room air for combustion and are also capable of drawing in air from the outside for sealed combustion. Units can be set up to vent vertically as Category I appliances or horizontally as Category III through a sidewall, making the Futera II ideal for buildings without chimneys, where roof penetrations cannot exist or on electric-to-gas conversions.

Features and Benefits

• 500-1,950 MBH
• Up to 85% Efficiency
• Advanced Diagnostic Panel
• Cast Iron Headers (Boilers)
• Bronze Headers (Water Heaters)
• Flame Safeguard Control
• One-Piece Header Design
• Pump Delay Relay
• Stainless Combustion Chamber
• Vertical or Horizontal Venting Options
• 2-Stage Digital Operator
• CSD-1 & FM Compliant Gas Train

The Dominator Series from RBI, with sizing from 300 to 2,100 MBH, offers the ultimate flexibility in boiler and water heater application, all at a competitive price. With efficiencies nearing 85.1%, the Dominator has one of the highest efficiency levels available in non-condensing boiler and water heater market. Capable of operating using mechanical room air for combustion or by drawing outside air directly as a sealed combustion product, the Dominator can vent combustion gases vertically or horizontally with factory equipped draft-inducer kits.

In commercial boiler applications where mechanical space is limited, the Dominator’s stackable frame option allows units to be stacked two-high, adding valuable BTUs while keeping the footprint to the size of a single unit. In addition, the Dominator provides up to four stages of firing, allowing the boiler to match the heating load more closely.

And with built-in serviceability features, including a slide out heat exchanger, contractors no longer need to remove the heat exchanger for service or repair, which, when coupled with high efficiencies, makes the Dominator a cost-saving option for any boiler application.

Features and Benefits

• Up to 85% Efficiency
• 300-2,100 MBH
• 2 or 4-Stage Firing Modes (300 On/Off Only)
• Cast Iron Headers (Boilers)
• Bronze Headers (Water Heaters)
• Category I & III Venting
• Finned Copper Tube Heat Exchanger – Two-Pass
• Stackable Frame (Seismic Approval up to Zone 4)
• Direct Vent (up to 35’ Equivalent)

The LCD Dominator Series offers a competitively priced indoor/outdoor boiler and hot water heating unit that meets low NOx requirements, while maintaining superior performance and serviceability that RBI is known for. The LCD provides dependable performance in a wide range of rugged environments and process applications with a wide 400 to 2,300 MBH range.

At the heart of the unit is a sealed combustion chamber that provides the flexibility of using either outside air or mechanical room air for combustion. Providing better performance while being priced in line with atmospheric boilers on the market, the LCD features smaller vent sizes, resulting in lower boiler installation and operation costs.

The LCD features a robust, compact design that is constructed with high-quality materials, which, when paired with a proven pilot ignition system and a wide variety of venting options, makes this unit one of the most dependable non-condensing boilers in the commercial boiler market.

Features and Benefits

• 400-2,300 MBH
• Finned Copper Tube Heat Exchanger
• On/Off, All Sizes 2-Stage, 600-2,300
• Cast Iron Headers (Boilers)
• Bronze Headers (Water Heaters)
• Category I Vertical Venting
• Category III Thru-Wall Venting (up to 35’)
• Slide-Out Heat Exchanger
• Stackable Frame (Seismic Approval up to Zone 4)

With models ranging from 100-399 MBH, Spectrum Series non condensing boilers unique design and optional corrosion-resistant, brushed stainless steel jackets make them ideal for indoor and outdoor installations in corrosive or harsh environments.

A unique feature within this MBH range, the Spectrum Series’ diagnostic control panel allows for easy troubleshooting, and, when coupled with the self-diagnostic light package, makes the Spectrum Series easy to assess, maintain and service. All Spectrum Series non-condensing, gas-fired boilers and hot water heaters are constructed using cast iron headers for application flexibility, and feature built-in draft diverters to lower the height of the unit and, most importantly, to reduce installation costs.

Features and Benefits

• 100-399 MBH
• On/Off or 2-Stage/4-Stage
• Automatic Reset High Limit 100-200
• Manual Reset High Limit 250-400
• Built-in Draft Diverter
• Stainless Steel Burners
• Cast Iron Headers (Boilers)
• Bronze Headers (Water Heaters)
• Inlet & Outlet Thermometers
• Mounted and Wired Flow Switch
• Vent Damper (100-250 MBH Boilers Only)
• Self Diagnostic Light Package
• Pump Control
• Electronic Ignition

RBI 8800 Series domestic boilers provide reliable, energy efficient operation in a wide variety of commercial boiler and hot water system applications. Ideal for hotels, schools, hospitals, laundries and car washes, the 8800 is the perfect non-condensing choice for applications that need large volumes of hot water. And with high quality construction, quiet operation and a variety of control options, the 8800 Series is an appropriate choice for hydronic heating applications with fast response, load matching and energy efficiency.

An integral, 2-pass heat exchanger and standard bronze headers ensure long-life performance and years of worry-free service. Uniquely designed to provide smooth heat transfer, the 8800 Series virtually eliminates standby losses as well as condensation problems.

8800 Series boilers and hot water heaters are also engineered with RBI’s signature ease of installation and service, with fully accessible components such as slide-out burner trays and heat exchangers. This technician-friendly design makes short work of service and maintenance calls – saving valuable time and money.

Features and Benefits

• 2,000-4,000 MBH
• Optional Cupro-Nickel Tubes
• Gas Control – On/Off, 2-Stage, 4-Stage
• Reversible Headers and Left or Right Gas Train Connections
• Slide Out Heat Exchanger and Burner Tray
• Interlocking Refractory
• Component Accessibility
• Category I & III Venting

RBI’s 8900 Series non-condensing boilers and hot water heaters are the most durable and serviceable units on the market. With a large size range – 420 to 1,900 MBH – 8900 Series non-condensing gas-fired boilers are ideal for applications in which a smaller unit is required, such as car washes and office building installations. Alongside a 2-pass finned copper tube heat exchanger, all 8900 Series non-condensing boilers and hot water heaters are constructed with intermittent pilot ignition, adjustable high limit, and a 24V gas valve with either single-stage or two-stage firing.

Engineered with RBI’s signature simple service design, 8900 Series boilers are constructed for easy boiler installation and maintenance, with all critical components easily accessible, including slide-out burner trays and heat exchangers. All major components can be inspected or removed without disturbing boiler casing or breaching, simplifying any required service work.

Features and Benefits

• 420 to 1,900 MBH
• Cast Iron Headers (Boilers)
• Bronze Headers (Water Heaters)
• 2-Pass Finned Copper Tube Heat Exchanger
• Slide Out Heat Exchanger and Burner Tray
• On/Off, 2-Stage/4-Stage
• 2 ½” Interlocking Combustion Chamber
• Front Mount 24V Controls
• FM/CSD-1Gas Train Compliant
• High & Low Gas Pressure Switches