🔥 Bowman EC100-5113-2T Titanium Heat Exchanger | 50kW (170,000 BTU/hr)

🌡️ Premium Titanium Pool Heating with Ultimate Corrosion Resistance for Salt Water & Chlorinated Pools

📋 Product Overview

The Bowman EC100-5113-2T is a premium titanium swimming pool heat exchanger delivering exceptional heat transfer performance of 50kW (170,000 BTU/hr) when paired with an 82°C boiler system. Manufactured by E.J. Bowman in Birmingham, UK, this unit represents over 60 years of heat exchanger expertise and 100 years of heat transfer technology.

Featuring a full titanium tube stack, this heat exchanger provides the ultimate “fit and forget” solution for pool heating. Titanium’s exceptional corrosion resistance makes it perfect for salt water pools, chlorinated systems, and installations using salt water chlorinators – environments where stainless steel alternatives simply cannot perform.

Designed for pools up to 90m³ (20,000 gallons), the EC100-5113-2T offers up to three times faster heating than conventional units thanks to Bowman’s optimised tube design. The compact, lightweight construction at just 4.0kg makes installation straightforward, while the removable tube stack ensures easy long-term maintenance.

⭐ Key Features

✅ 50kW Heat Transfer Capacity – Delivers 170,000 BTU/hr with 82°C boiler water for rapid pool heating

✅ Full Titanium Tube Stack – The ultimate corrosion-resistant material, suitable for all water types including salt water

✅ 10-Year Titanium Guarantee – Comprehensive warranty on all titanium material in contact with pool water

✅ Universal Fit End Covers – Composite end covers accommodate both metric 50mm (DN40) and imperial 1½” NPS pipework

✅ Compact Lightweight Design – Just 4.0kg dry weight and 456mm overall length for easy handling and installation

✅ Triple-Speed Heating Technology – Heats pools up to three times faster than conventional heat exchangers

✅ Flexible Mounting Options – Install vertically or horizontally with included mounting brackets

✅ Integral Thermostat Pocket – Built-in Ø7 x 40mm pocket for accurate pool water temperature monitoring

✅ Removable Tube Stack – Easy access for cleaning and maintenance via removable end covers

✅ Counter-Flow Design – Optimised heat transfer through opposing flow directions

🔧 Technical Specifications

Specification	Details
Model Number	EC100-5113-2T
Heat Output (82°C Boiler)	50kW / 170,000 BTU/hr
Heat Output (60°C Boiler)	30kW / 102,000 BTU/hr
Shell Material	Composite End Covers with Cast Iron Body
Tube Material	Titanium
Max Pool Volume	90m³ / 20,000 gallons
Boiler/Primary Flow Rate	3.0m³/hr (50 l/min)
Maximum Pool Water Flow	12.0m³/hr (200 l/min)
Max Operating Pressure	6 bar (both sides)
Max Operating Temperature (Heating Side)	110°C
Max Operating Temperature (Pool Side)	100°C
Primary Connections (Boiler)	¾” BSP Threaded
Secondary Connections (Pool)	Solvent Weld Ø48/Ø50mm (DN40 Pipe)
Overall Length	456mm
Body Diameter	86mm
Mounting Centres	130mm
Weight (Dry)	4.0 kg
Thermostat Pocket	Ø7 x 40mm (Inlet End)

📊 Heat Transfer Performance

The Bowman EC100-5113-2T delivers outstanding heat transfer capabilities that scale with your heat source temperature:

🏊 Pool Heating Performance

Heat Source Temperature	Heat Output	Suitable Pool Size
82°C Boiler Water	50kW (170,000 BTU/hr)	Up to 90m³ (20,000 gal)
60°C Boiler Water	30kW (102,000 BTU/hr)	Up to 90m³ (20,000 gal)

Performance based on achieving a pool water temperature of 30°C

⚡ Efficiency Factors

• Optimal Flow Rates: Boiler circuit at 50 l/min, pool circuit up to 200 l/min
• Counter-Flow Installation: Essential for maximum heat transfer efficiency
• Temperature Differential: Greater difference between heat source and pool water = faster heating
• Proper Sizing: This unit is rated for pools up to 90m³ when using an appropriately sized heat source

⏱️ Heat-Up Times & Temperature Maintenance

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

• Heat source output (boiler/heat pump kW rating)
• Starting water temperature
• Target water temperature
• Pool cover usage (reduces heat loss by up to 75%)
• Ambient/outdoor temperature
• Weather and wind conditions
• Pool insulation quality

The EC100-5113-2T is a passive heat transfer device – actual heating times depend entirely on your heat source capacity and installation conditions.

💡 General Guidance

The manufacturer states this unit can heat pools up to three times faster than conventional heat exchangers when properly matched with an adequate heat source. For a 90m³ pool:

• A 50kW boiler operating at 82°C will deliver the full 50kW heat transfer capacity
• A 30kW boiler operating at 60°C will deliver approximately 30kW heat transfer capacity
• Heat pump systems typically operate at lower temperatures and will have reduced heat transfer rates

🛡️ Material & Compatibility Guide

Why Titanium?

Titanium is the ultimate “fit and forget” material for swimming pool heat exchangers. The EC100-5113-2T’s titanium tube stack offers:

✅ Universal Water Compatibility – Works with any pool water type, including saline and salt water chlorinators

✅ Indefinite Chemical Resistance – Resists attack from aggressive pool chemicals indefinitely

✅ No Galvanic Corrosion – Eliminates the risk of galvanic reaction between dissimilar materials

✅ Higher Flow Capacity – Can operate at higher flow rates than other materials, enabling greater heat transfer

✅ 10-Year Guarantee – Full warranty on all titanium material in contact with pool water

Recommended Water Parameters (Titanium)

Parameter	Recommended Range
pH Level	6.8 – 8.0
Free Chlorine	Up to 15.0 ppm max
Bromine	Up to 15.0 ppm max
Chloride	Less than 3,000 ppm
Calcium Hardness	200 – 1,000 ppm
Alkalinity	100 – 150 ppm

Material Comparison

Feature	Titanium ✅	Stainless Steel	Cupro-Nickel
Salt Water Pools	✅ Yes	❌ No	✅ Yes
Salt Chlorinators	✅ Yes	❌ No	✅ Yes
Chlorinated Pools	✅ Yes	✅ Yes	✅ Yes
Freshwater Pools	✅ Yes	✅ Yes	✅ Yes
Max Chloride Level	3,000 ppm	350 ppm	150 ppm
Galvanic Corrosion Risk	None	Possible	Possible
Warranty Period	10 Years	12 Months	12 Months

🎯 Applications & Use Cases

The Bowman EC100-5113-2T Titanium is perfectly suited for:

🏊‍♂️ Residential Swimming Pools – Ideal for larger home pools up to 90m³ (20,000 gallons)

🌊 Salt Water Pools – Full compatibility with saline systems and salt water chlorinators

🛁 Spas & Hot Tubs – Commercial-grade heating for spa installations

🔥 Boiler Systems – Designed for use with gas, oil, or biomass boilers

☀️ Solar Thermal Integration – Compatible with solar panel heating systems (note: lower temperatures reduce output)

⚡ Heat Pump Connections – Works with air source and ground source heat pumps

🏢 Small Commercial Pools – Holiday lets, rental properties, and boutique hotels

🏠 Indoor & Outdoor Pools – Suitable for all installation environments

🔨 Installation Considerations

Mounting Requirements

• Orientation: Can be installed vertically or horizontally
• Mounting Brackets: Supplied with unit (130mm mounting centres)
• Location: Must be installed in a frost-free, dry area with non-aggressive atmosphere
• Access: Ensure easy access for assembly, disassembly, and maintenance

Connection Guidelines

• Pool Water: Solvent weld connections for Ø48mm or Ø50mm (DN40) metric pipe, or 1½” NPS imperial pipe
• Boiler Water: ¾” BSP threaded connections
• Universal Fit End Covers: Accommodate both metric and imperial pipework

Critical Installation Points

⚠️ Counter-Flow Installation Required: Pool water must flow in the opposite direction to heating water for optimal performance. Failure to install in counter-flow will significantly reduce heat transfer.

⚠️ Thermostat Position: Install thermostat in the integral pocket on the pool water inlet side for accurate temperature monitoring.

⚠️ Chemical Dosing: Automatic dosing systems must be installed DOWNSTREAM of the heat exchanger with a non-return valve.

⚠️ Maximum Flow Rates: Do not exceed 12.0m³/hr (200 l/min) pool water flow rate.

⚠️ Professional Installation Recommended: For warranty compliance and optimal performance, professional installation by a qualified engineer is strongly recommended.

Typical Installation Diagram

Pool Return ──→ [Filter] ──→ [Pump] ──→ [HEAT EXCHANGER] ──→ [Dosing] ──→ Pool
                                              ↑↓
                              [Boiler/Heat Pump with Pump]

📥 Downloads & Resources

 Swimming Pool Heat Exchanger Brochure – Complete product range specifications and performance data (PDF)

 Installation, Operation & Maintenance Guide – Full technical installation instructions and maintenance procedures (PDF)

🏆 Why Choose Bowman Heat Exchangers

✅ British Manufacturing Excellence – Designed and built in Birmingham, UK since 1921

✅ 100 Years of Heat Transfer Technology – A century of engineering expertise in every unit

✅ Industry-Leading Brand – Acknowledged as the brand leader for swimming pool heat exchangers worldwide

✅ 10-Year Titanium Guarantee – Comprehensive warranty on titanium material gives complete peace of mind

✅ Proven Global Performance – Tens of thousands of units operating reliably around the world

✅ Premium Build Quality – Designed and manufactured to the highest quality standards

✅ Comprehensive Spare Parts Availability – Full range of replacement parts for long-term serviceability

🛒 Why Buy From Parts4Tubs

✅ UK-Based Pool Heating Specialists – Expert knowledge of Bowman products and applications

✅ Technical Support – Get sizing advice and installation guidance from our experienced team

✅ Fast UK Delivery – Quick dispatch to get your pool heating project underway

✅ Competitive Pricing – Great value on genuine Bowman heat exchangers

✅ After-Sales Support – Ongoing assistance and spare parts availability

✅ Genuine Products – Authorised retailer of Bowman swimming pool heat exchangers

✨ Summary

The Bowman EC100-5113-2T Titanium Heat Exchanger represents the pinnacle of swimming pool heating technology. Delivering 50kW (170,000 BTU/hr) of heat transfer capacity with an 82°C boiler, this compact 4.0kg unit is engineered for pools up to 90m³. The titanium tube stack with its 10-year guarantee provides complete peace of mind for salt water, chlorinated, and freshwater pool installations. When you choose Bowman, you’re choosing 100 years of British engineering excellence.