🔥 Bowman FG100-5115-2T Titanium Heat Exchanger | 170kW | Swimming Pool Heating

🌡️ Premium Titanium Shell & Tube Heat Exchanger – Ultimate Corrosion Resistance for Salt Water & Large Commercial Pools

📋 Product Overview

The Bowman FG100-5115-2T is a premium shell and tube heat exchanger engineered for demanding swimming pool heating applications. Featuring a full titanium tube core, this unit delivers exceptional corrosion resistance and reliable heat transfer for pools up to 250m³ (55,000 gallons).

Manufactured by EJ Bowman in Birmingham, UK, with over 100 years of heat transfer expertise, this heat exchanger connects to your boiler or heat source to efficiently transfer thermal energy into your pool water. The titanium construction makes it the ideal choice for salt water pools, chlorinated installations, and mineral-rich water conditions where lesser materials would quickly corrode.

The cast end covers feature Bowman’s advanced ‘C’ coat technology – a highly corrosion-resistant coating that protects against the harshest water conditions. With easy disassembly for routine maintenance and flexible mounting options, the FG100-5115-2T combines industrial durability with practical serviceability.

⭐ Key Features

✅ Full Titanium Tube Core – Maximum corrosion resistance for salt water and chemically treated pools

✅ 170kW Heat Transfer Capacity – Powerful output when paired with an 82°C boiler at optimal flow rates

✅ Pools Up To 250m³ (55,000 Gallons) – Suitable for large residential and commercial installations

✅ Salt Water Compatible – Titanium construction withstands salt chlorinators and mineral-rich water

✅ ‘C’ Coat End Covers – Advanced corrosion-resistant coating on cast end covers

✅ Flexible Mounting – Vertical or horizontal installation with supplied mounting brackets

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

✅ Thermostat Pocket Included – 7mm x 52mm pocket for temperature monitoring

✅ 10-Year Titanium Warranty – Full manufacturer warranty on titanium materials

✅ 2½” BSP Pool Connections – Threaded end covers for straightforward plumbing integration

🔧 Technical Specifications

Specification	Details
Model Number	FG100-5115-2T
Tube Material	Titanium
Shell Material	Cast with ‘C’ Coat finish
Typical Heat Transfer	170kW (boiler heating at optimal conditions)
Maximum Pool Volume	250m³ / 55,000 gallons
Maximum Pool Water Flow	33.0 m³/h (550 l/min)
Maximum Hot Water Temperature	110°C / 230°F
Max Operating Pressure (Pool Water)	6 bar / 87 psi
Max Operating Pressure (Hot Water)	6 bar / 87 psi
Pool Water Connections	2½” BSP
Boiler Water Connections	1¼” BSP
Overall Length	470mm
Diameter	128mm
Mounting Centres	294mm (length) / 190mm x 160mm (holes)
Mounting Hole Diameter	7mm
Thermostat Pocket	7mm x 52mm deep
Weight (Dry)	14 kg

📊 Heat Transfer Performance

The FG100-5115-2T delivers variable heat transfer rates depending on your boiler water temperature and flow rate. The table below shows verified performance data from Bowman’s technical documentation:

🔥 Heat Output by Boiler Temperature

Pool water flow: 480 l/min at 28°C

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

⚡ Performance Factors

• Optimum Performance: Achieved at higher boiler temperatures (82°C) and maximum flow rates (140 l/min hot water, 480 l/min pool water)
• Flow Rate Critical: Both hot water and pool water flow rates significantly impact heat transfer efficiency
• Temperature Differential: Greater difference between boiler water and pool water temperatures yields higher heat transfer rates

ℹ️ Data sourced directly from Bowman manufacturer documentation. Actual performance depends on your specific installation conditions.

⏱️ Heat-Up Times & Temperature Maintenance

⚠️ Important Notice Regarding Heating Times

Heat-up times for swimming pools vary significantly based on multiple factors that are specific to each installation. The manufacturer documentation does not provide specific heat-up time calculations, as these depend on variables outside the heat exchanger’s control.

Variables That Affect Pool Heating Time:

• Heat Source Capacity – The kW/BTU output of your boiler or heat pump
• Starting Water Temperature – Colder starting temperatures require more energy
• Target Water Temperature – Higher target temperatures extend heating time
• Pool Cover Usage – Covers significantly reduce heat loss during heating
• Ambient/Outdoor Temperature – Environmental conditions affect heat retention
• Pool Insulation – Well-insulated pools retain heat more effectively
• Heat Exchanger Sizing – Correct matching to heat source is essential
• Flow Rates – Both primary and secondary circuit flow rates impact efficiency

General Guidance:

🏊 Pool Heating Performance:

• Heat Output: Up to 170 kW at optimal conditions
• Suitable for pools up to 250m³ (55,000 gallons)
• Performance scales with boiler temperature and flow rates

🛡️ Material & Compatibility Guide

Why Titanium?

The FG100-5115-2T features a full titanium tube core – the premium choice for demanding pool environments. Titanium offers:

✅ Ultimate Corrosion Resistance – Withstands aggressive water chemistry indefinitely

✅ Salt Water Chlorinator Compatible – Essential for salt-generated chlorine systems

✅ Mineral-Rich Water Suitable – Handles hard water and high mineral content

✅ Longest Service Life – Titanium outlasts all other tube materials

✅ 10-Year Material Warranty – Bowman’s confidence in titanium durability

Water Type Compatibility

Water Type	FG100-5115-2T (Titanium)
Salt Water Pools	✅ Fully Compatible
Salt Chlorinators	✅ Fully Compatible
Chlorinated Freshwater	✅ Fully Compatible
Bromine Treated	✅ Fully Compatible
Mineral-Rich Water	✅ Fully Compatible
Standard Pool Chemicals	✅ Fully Compatible

Bowman FG100-5115-2 Range Comparison

Model	Tube Material	Max Pool Volume	Salt Water	Weight
FG100-5115-2T	Titanium	250m³ / 55,000 gal	✅ Yes	14 kg
FG100-5115-2C	Cupro-Nickel	230m³ / 50,000 gal	✅ Yes	16 kg
FG100-5115-2S	Stainless Steel	250m³ / 55,000 gal	❌ No*	15 kg

*Stainless steel model is NOT suitable for salt water chlorinators or salt water pools.

🎯 Applications & Use Cases

The Bowman FG100-5115-2T is designed for a wide range of pool heating applications:

🏊‍♂️ Large Residential Pools – Ideal for pools up to 250m³ requiring reliable, long-term heating

🏢 Commercial Swimming Pools – Built for the demands of leisure centres and fitness facilities

🌊 Salt Water Installations – Titanium construction ensures longevity in salt-chlorinated systems

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

☀️ Solar Thermal Systems – Compatible with solar heating setups for renewable pool heating

🛁 Large Spa Installations – Suitable for commercial hot tub and hydrotherapy applications

💧 Heat Pump Connection – Works with air-source and ground-source heat pumps

🏨 Hotel & Resort Pools – Reliable performance for hospitality applications

🔨 Installation Considerations

Mounting Options

The FG100-5115-2T can be installed in either horizontal or vertical orientation, providing flexibility for different plant room layouts.

• Mounting Brackets: Supplied with unit
• Mounting Hole Centres: 190mm x 160mm
• Mounting Hole Diameter: 7mm
• Overall Length: 470mm
• Diameter: 128mm

Connection Requirements

Connection	Size	Type
Pool Water Inlet	2½” BSP	Threaded
Pool Water Outlet	2½” BSP	Threaded
Boiler Water Inlet	1¼” BSP	Threaded
Boiler Water Outlet	1¼” BSP	Threaded

Flow Direction

Correct flow direction is essential for optimal heat transfer:

• Pool Water: Flows through the tube side
• Boiler/Hot Water: Flows through the shell side
• Counter-flow arrangement: Recommended for maximum efficiency

Installation Notes

⚠️ Automatic Dosing Systems: If fitted, chemical dosing systems must be installed AFTER the heat exchanger on the return to the pool

⚠️ Isolation Valves: Install isolation valves on both circuits for maintenance access

⚠️ Non-Return Valve: Recommended on the boiler circuit

⚠️ Professional Installation: Recommended for warranty compliance and optimal performance

📥 Downloads & Resources

📄 Product Brochure – Complete technical specifications and performance data (PDF)

🏆 Why Choose Bowman Heat Exchangers

✅ 100 Years of Heat Transfer Expertise – EJ Bowman has manufactured heat exchangers in Birmingham, UK since 1923

✅ Premium Titanium Construction – Industry-leading corrosion resistance for the most demanding applications

✅ 10-Year Titanium Material Warranty – Manufacturer-backed confidence in material durability

✅ Proven Shell & Tube Design – Reliable, serviceable technology trusted worldwide

✅ British Manufacturing Quality – Designed and built in the UK to exacting standards

✅ Comprehensive Technical Support – Backed by manufacturer knowledge centre and documentation

✅ Wide Range Available – Multiple sizes and materials to suit every pool application

🛒 Why Buy From Parts4Tubs

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

✅ Competitive Pricing – Trade and retail pricing on genuine Bowman products

✅ Fast UK Delivery – Quick dispatch on stock items

✅ Technical Advice Available – Help with sizing and selection

✅ After-Sales Support – Ongoing assistance with your installation

✅ Genuine Manufacturer Stock – Authentic Bowman heat exchangers with full warranty

✨ Summary

The Bowman FG100-5115-2T Titanium Heat Exchanger delivers premium heat transfer performance for pools up to 250m³. With its full titanium tube core, 10-year material warranty, and proven shell & tube design, this unit offers the ultimate solution for salt water pools, commercial installations, and demanding water conditions. Backed by EJ Bowman’s century of manufacturing expertise and designed for easy maintenance, the FG100-5115-2T represents the pinnacle of swimming pool heat exchanger technology.