C95 + C140

Condensing Combination Boiler

Glow Brand C95 and C140 instantaneous combination ASME boilers for heating and on-demand hot water supply. The ultra- efficient compact design combination boiler has an AFUE rating of 95%. These units are fully modulating at 10 to 1 and 2 inch PVC venting up to 100 feet.


The C95 and C140 are built on experience, and incorporate the latest technological know-how to produce space heating and domestic water production.

Each unit has an efficient and compact design, allowing for ease of installation in both new construction and retrofit applications.

The units operate through simplified controls and features, are energy efficient and environmentally friendly.

Units are available in different capacities and burner modulation affording flexibility in application while meeting varying needs for domestic water.

The C95 and C140 are designed for compatibility with a wide choice of accessories and can be used for domestic hot water, tankless mode or with storage tank and home heating configurations with air handlers for space heating and in floor heating.

Glow Brand™ condensing boiler can operate with multiple types of heating systems: hydronic systems incorporating radiators, fan coils or in-floor heating, while maintaining high efficiency levels and comfort.

Each includes an advanced self-diagnostic system providing the user with a simple way to set and verify equipment operation on a back-lit display. Diagnostics are easily identified through symbols.


• Single stainless steel burner
• Condensing burner efficiency
• Electricity savings of ECM motor
• Home heating and a small draw on DHW system
• Priority system temperature controlled by zones
• 10-1 Modulation

• Supports multiple configurations & applications
• Range of products to meet heating & DHW demands
• Various installation options to minimize space requirements
• Separate water streams for each component
• Built-in expansion tank and pump

• Build quality of Glow Brand™ (all metal parts)
• Innovative design for flow detection
• Warranty service
• Local service & support

• Glow Brand™ products are manufactured to a high specification and in compliance with relevant standards.
• The design of the Glow Brand™ product line addresses three key areas: reliability, performance and serviceability
• For the home builder, home owner & service technician, experience has shown that these key areas play a substantial role in minimizing the life cycle costs for residential boiler systems.

95% AFUE Efficiency

Technical Data Specifications C95
Domestic Input - Min MBH(KW) 9 (2.6) 10 (2.9) 14.8 (4.3)
Domestic Input - Max MBH(KW) 97 (28.4) 160 (46.9)
Central Heating Input - Min MBH(KW) 9 (2.6) 10 (2.9) 14.8 (4.3)
Central Heating Input - Max MBH(KW) 76 (22.3) 111.2 (32.6)
A.F.U.E 95% 93.5% 95%
Min Water Temperature - Space Heating - ºF(ºC) 95 (35) 95 (35)
Max Water Temperature - Space Heating - ºF(ºC) 171 (77) 171 (77)
Min Water Temperature - Domestic Hot Water - ºF(ºC) 104 (40) 104 (40)
Max Water Temperature - Domestic Hot Water - ºF(ºC) 140 (60) 140 (60)
Vent/Air-Intake Pipe Domestic - Inches PVC/CPVC 2 or 3 PVC/CPVC 2 or 3
Min Equivalent Vent Length 2" (each side) - Feet 100 40
Max Equivalent Vent Length 3" (each side) - Feet 125 125
Dimensions HxWxD - Inches 31.2x16.9x14.0 31.2x16.9x18.0
Weight (empty) - Pounds 105 130
DHW Flow Rate 2.4 usg@77ºF Rise 4.0 usg @77ºF Rise

Glow C95 Dimensions

Glow C140 Dimensions

Gas Inlet
3/4" NPT
CH Outlet
3/4" NPT
CH Inlet
3/4" NPT
DHW Inlet
1/2" NPT
DWH Outlet
1/2" NPT
Condensate Oulet
3/4" I.D.

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