🔥 Bowman FG100-5115-2C Cupro-Nickel Swimming Pool Heat Exchanger | 170kW (580,000 BTU/hr)

🌡️ High-Capacity Commercial Heat Exchanger – British-Built Quality for Pools Up to 230m³ (50,000 Gallons)

📋 Product Overview

The Bowman FG100-5115-2C is a professional-grade shell and tube heat exchanger engineered for large residential and commercial swimming pool installations. Manufactured by EJ Bowman in Birmingham, UK – a company with over 100 years of heat transfer expertise – this unit delivers exceptional thermal performance with a maximum output of 170kW (580,000 BTU/hr) when paired with a high-temperature boiler system.

Built with durable cupro-nickel tube construction, the FG100-5115-2C offers excellent corrosion resistance and efficient heat transfer for chlorinated freshwater pools. The advanced ‘C’ coat finish on the cast end covers provides additional protection against harsh pool environments. Designed for pools up to 230m³ (50,000 gallons), this heat exchanger is ideal for leisure centres, hotels, competition pools, and large private installations requiring rapid, reliable heating performance.

⭐ Key Features

✅ High Heat Output – Up to 170kW (580,000 BTU/hr) at 82°C boiler temperature with 140 l/min hot water flow

✅ Cupro-Nickel Tube Core – Superior corrosion resistance and excellent thermal conductivity for chlorinated pools

✅ Large Pool Capacity – Suitable for pools up to 230m³ (50,000 gallons)

✅ Flexible Installation – Horizontal or vertical mounting options with supplied brackets

✅ Easy Maintenance – Removable tube stack and accessible end covers for routine servicing

✅ Integrated Thermostat Pocket – Built-in Ø7 x 52mm pocket for temperature monitoring

✅ Advanced ‘C’ Coat Finish – Highly corrosion-resistant coating on cast end covers

✅ High Pressure Rating – 6 bar (87 psi) maximum operating pressure on both circuits

✅ High Temperature Tolerance – Maximum hot water temperature of 110°C (230°F)

✅ BSP Threaded Connections – 2½” BSP shell connections and 1¼” BSP tube connections for straightforward installation

🔧 Technical Specifications

Specification	Details
Model Number	FG100-5115-2C
Tube Material	Cupro-Nickel
Shell Material	Steel with ‘C’ Coat Finish
Heat Output (82°C Boiler)	170kW (580,000 BTU/hr)
Heat Output (70°C Boiler)	130kW (443,000 BTU/hr)
Heat Output (60°C Boiler)	98kW (334,000 BTU/hr)
Typical Pool Capacity	230m³ / 50,000 gallons
Maximum Pool Water Flow	28.8 m³/h (480 l/min)
Optimum Hot Water Flow	120-140 l/min (7.2-8.4 m³/h)
Max Operating Pressure (Pool Side)	6 bar (87 psi)
Max Operating Pressure (Hot Side)	6 bar (87 psi)
Max Hot Water Temperature	110°C (230°F)
Primary Connections (Shell/Boiler)	2½” BSP
Secondary Connections (Tube/Pool)	1¼” BSP
Overall Length	470mm
Diameter	128mm
Mounting Hole Centres	190mm x 160mm
Weight (Dry)	16 kg
Manufacturer	EJ Bowman (Birmingham) Ltd, UK

📊 Heat Transfer Performance

The Bowman FG100-5115-2C delivers variable heat output depending on your boiler temperature and flow rates. Below is the verified performance data from the manufacturer.

🏊 Heat Output at Different Boiler Temperatures

Pool water flow: 480 l/min at 28°C

Hot Water Flow	82°C Boiler	70°C Boiler	60°C Boiler	45°C Boiler
40 l/min	90 kW	69 kW	52 kW	27 kW
60 l/min	114 kW	87 kW	65 kW	34 kW
80 l/min	132 kW	101 kW	76 kW	39 kW
100 l/min	147 kW	113 kW	85 kW	44 kW
120 l/min	159 kW	122 kW	92 kW	47 kW
140 l/min	170 kW	130 kW	98 kW	51 kW

Source: Bowman FG100-5115-2 Product Brochure

⚡ Efficiency Factors

• Flow Rate Optimisation – Maximum heat transfer requires adequate flow on both the boiler and pool circuits
• Temperature Differential – Higher boiler temperatures yield greater heat output
• Proper Sizing – Match the heat exchanger capacity to your boiler output for optimal performance

⚠️ Important: As highlighted in Bowman’s technical documentation, providing the correct water flow volume is vital to performance. If flow rates are too low on either circuit, the heat exchanger will not perform at designed efficiency.

⏱️ Heat-Up Times & Temperature Maintenance

⚠️ Heat-up times vary based on multiple factors including:

• Heat source output (boiler kW rating)
• Starting water temperature
• Target water temperature
• Pool cover usage and insulation
• Ambient/outdoor temperature
• Actual flow rates achieved

The Bowman FG100-5115-2C is a passive heat transfer device – actual heating times depend entirely on your heat source capacity and installation conditions.

💡 General Guidance

With a maximum heat transfer capacity of 170kW at optimal conditions, this heat exchanger can transfer substantial thermal energy from your boiler to the pool water. However, achieving this requires:

• A boiler capable of supplying 82°C water at 140 l/min flow rate
• Pool circulation delivering 480 l/min through the heat exchanger
• Correct installation and system balancing

🛡️ Material & Compatibility Guide

Cupro-Nickel Construction

The FG100-5115-2C features cupro-nickel tube construction, offering an excellent balance of performance and value for chlorinated freshwater pools.

✅ Chlorinated freshwater pools – Excellent resistance to standard pool chemicals

✅ Mineral-rich fresh water – Handles hard water conditions effectively

✅ Excellent heat transfer – Cupro-nickel provides superior thermal conductivity

✅ Cost-effective durability – Long service life at a competitive price point

✅ Easy maintenance – Accessible design for routine cleaning and inspection

❌ Not recommended for salt water pools – For salt chlorinated pools, choose the Titanium model (FG100-5115-2T)

Material Comparison (FG100-5115-2 Range)

Model	Tube Material	Salt Water	Freshwater	Pool Capacity
FG100-5115-2T	Titanium	✅ Yes	✅ Yes	250m³
FG100-5115-2C	Cupro-Nickel	❌ No	✅ Yes	230m³
FG100-5115-2S	Stainless Steel	❌ No	✅ Yes	250m³

Source: Bowman FG100-5115-2 Product Brochure

🎯 Applications & Use Cases

🏢 Commercial Leisure Centres – High-capacity heating for public swimming facilities

🏊‍♂️ Competition Pools – Maintain precise water temperatures for training and events

🏨 Hotel & Resort Pools – Reliable heating for guest amenities

🏠 Large Residential Pools – Premium heating solution for substantial private pools

🔥 Boiler Integration – Designed specifically for connection to gas, oil, or biomass boilers

☀️ Solar Thermal Systems – Compatible with solar heating installations (at lower temperatures)

🏋️ Sports & Training Facilities – Consistent temperatures for athletic programmes

🏥 Hydrotherapy Pools – Dependable heating for therapeutic applications

🔨 Installation Considerations

Mounting Options

✅ Horizontal mounting – Standard installation with supplied brackets

✅ Vertical mounting – Alternative orientation where space is limited

Connection Requirements

• Shell Side (Boiler): 2½” BSP threaded connections
• Tube Side (Pool): 1¼” BSP threaded connections
• Thermostat Pocket: Ø7 x 52mm integrated pocket for temperature sensor

Flow Direction

• Boiler water inlet/outlet – Shell side connections (top/bottom)
• Pool water inlet/outlet – Tube side connections (end caps)

Important Installation Notes

⚠️ If an automatic dosing system is fitted, it must be installed after the heat exchanger on the return line to the pool

⚠️ Isolation valves recommended on all connections for maintenance access

⚠️ Non-return valve required to prevent backflow

⚠️ Ensure adequate flow rates are achieved for optimal heat transfer performance

Pressure Drop Data

Shell Side (Heating Water):

Flow Rate	Pressure Drop
50 l/min	1.4 kPa
100 l/min	5.4 kPa
150 l/min	12.0 kPa
200 l/min	21.3 kPa

Tube Side (Pool Water):

Flow Rate	Pressure Drop
110 l/min	0.8 kPa
220 l/min	2.9 kPa
330 l/min	6.0 kPa
440 l/min	10.3 kPa

Source: Bowman FG100-5115-2 Product Brochure

⚠️ Professional installation is strongly recommended to ensure correct setup, warranty compliance, and optimal performance.

📥 Downloads & Resources

📄 Bowman FG100-5115-2 Product Brochure – Complete technical specifications, dimensions, and performance data (PDF)

🏆 Why Choose Bowman Heat Exchangers

✅ 100 Years of Expertise – EJ Bowman has been manufacturing heat transfer equipment since 1924

✅ British Manufacturing Quality – Designed and built in Birmingham, UK

✅ Premium Materials – Choice of titanium, cupro-nickel, or stainless steel to match your application

✅ Proven Performance – Trusted by commercial and residential installers worldwide

✅ 10-Year Warranty – Full warranty on titanium materials (titanium models)

✅ Comprehensive Range – Multiple sizes and configurations for any pool application

✅ Technical Support – Backed by manufacturer engineering expertise

🛒 Why Buy From Parts4Tubs

✅ UK-Based Pool Heating Specialists – Expert knowledge of swimming pool heat exchangers

✅ Authorised Bowman Stockist – Genuine products with full manufacturer support

✅ Technical Advice – Our team can help you select the right model for your installation

✅ Competitive Pricing – Great value on premium heating equipment

✅ Fast UK Delivery – Quick dispatch to get your project moving

✅ After-Sales Support – We’re here to help with any questions after purchase

✨ Summary

The Bowman FG100-5115-2C Cupro-Nickel Heat Exchanger delivers professional-grade performance for large pools up to 230m³. With 170kW heat transfer capacity, robust cupro-nickel construction, and over 100 years of British engineering expertise behind it, this unit represents an excellent choice for commercial facilities, leisure centres, and substantial residential installations requiring reliable, efficient pool heating.

Order today from Parts4Tubs – your trusted source for Bowman pool heating solutions.