🔥 Bowman EC80-5113-1T Titanium Heat Exchanger | 25kW (85,000 BTU/h)

🌊 Ultimate Corrosion Resistance for Salt Water & Chlorinated Pools – British Engineering Excellence with 10-Year Titanium Guarantee

📋 Product Overview

The Bowman EC80-5113-1T represents the pinnacle of swimming pool heat exchange technology, featuring a full titanium tube stack designed for the most demanding water conditions. This compact yet powerful unit delivers efficient heat transfer from your boiler, heat pump, or solar system directly to your pool water.

Titanium is recognised as the ultimate “fit and forget” material for pool heating applications. Unlike stainless steel or cupro-nickel alternatives, titanium withstands attack from all known pool chemicals indefinitely – making it the only choice for salt water pools, salt chlorinators, and high-chemical environments. The EC80-5113-1T combines this exceptional durability with Bowman’s proven shell-and-tube design, featuring more heat transfer tubes than most competitors for faster heating and reduced energy consumption.

Ideal for residential swimming pools up to 50,000 litres (11,000 gallons), this heat exchanger represents over 100 years of British heat transfer expertise from EJ Bowman – a brand trusted in installations ranging from private spas to Olympic-standard facilities worldwide.

⭐ Key Features

✅ Full Titanium Tube Stack – Ultimate corrosion resistance suitable for all water types including salt water and chlorinated pools

✅ 25kW Heat Output (85,000 BTU/h) – Efficient heat transfer with 82°C boiler water for pools up to 50m³

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

✅ Compact Lightweight Design – Only 2.7kg dry weight for easy handling and installation

✅ Universal Fit End Covers – Compatible with both metric 50mm and imperial 48mm (1½” NPS) pool pipework

✅ Removable Tube Stack – Easy access for cleaning and maintenance without full system drain-down

✅ Integral Thermostat Pocket – 7mm x 40mm pocket on inlet end for accurate temperature monitoring

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

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

✅ Higher Flow Rates Than Other Materials – Titanium enables superior performance, potentially allowing smaller unit selection

🔧 Technical Specifications

Specification	Details
Model Number	EC80-5113-1T
Heat Output (82°C Boiler)	25kW (85,000 BTU/h)
Heat Output (60°C Boiler)	16kW (55,000 BTU/h)
Shell Material	Composite
Tube Stack Material	Titanium
Max Pool Volume	50m³ (11,000 gallons)
Boiler Water Flow Rate	3.0 m³/h (50 l/min)
Max Pool Water Flow Rate	12.0 m³/h (200 l/min)
Max Operating Pressure	6 bar (both circuits)
Max Operating Temperature	110°C (heating side) / 100°C (pool side)
Boiler Connections	3/4″ BSP threaded
Pool Water Connections	Solvent weld Ø48mm / Ø50mm (Universal Fit)
Overall Length	370mm
Mounting Centres	130mm
Thermostat Pocket	Ø7 x 40mm (inlet end)
Weight (Dry)	2.7 kg
Warranty	12 months manufacturing defects + 10 years titanium tube stack

📊 Heat Transfer Performance

🏊 Pool Heating Capacity

The EC80-5113-1T delivers the following verified heat transfer rates based on manufacturer testing:

Heat Source Temperature	Heat Output	Suitable Pool Volume
82°C Boiler Water	25kW (85,000 BTU/h)	Up to 50m³ (11,000 gal)
60°C Boiler Water	16kW (55,000 BTU/h)	Up to 50m³ (11,000 gal)

Performance based on achieving pool water temperature of 30°C

⚡ Efficiency Factors

The actual heat transfer achieved depends on several key variables:

• Flow Rate Optimisation – Maintaining recommended boiler flow of 50 l/min and pool water flow up to 200 l/min
• Temperature Differential – Greater difference between heat source and pool water increases transfer rate
• Counter-Flow Installation – Essential for optimal performance; parallel flow reduces efficiency
• Heat Source Capacity – The heat exchanger can only transfer what your boiler or heat pump provides

⏱️ Heat-Up Times & Temperature Maintenance

⚠️ Important Notice Regarding Heating Times

Heat-up times vary significantly based on multiple factors that are specific to each installation:

• Heat source output – Your boiler or heat pump’s actual kW rating
• Starting water temperature – Seasonal variations affect initial pool temperature
• Target temperature rise – Typically 10-15°C above ambient
• Pool cover usage – Covers can reduce heat loss by up to 75%
• Ambient/outdoor temperature – Environmental heat loss varies by location and season
• Pool insulation – Ground contact and construction materials affect heat retention
• Wind exposure – Increases evaporative heat loss significantly

ℹ️ What We Can Confirm (From Manufacturer Documentation):

The EC80-5113-1T transfers up to 25kW of heat per hour when supplied with 82°C boiler water, or 16kW per hour with 60°C water. This is the rate at which thermal energy moves from your heat source to the pool water.

To estimate your heating requirements, the general principle is:

• 1kW raises approximately 860 litres by 1°C per hour (under ideal conditions)
• Actual performance depends on your complete system configuration

📞 For specific calculations tailored to your installation, please contact our technical team at Parts4Tubs who can assess your heat source capacity, pool volume, and environmental factors.

🛡️ Material & Compatibility Guide

Why Titanium?

Titanium is the premium choice for swimming pool heat exchangers, offering unmatched benefits:

✅ Universal Water Compatibility – Safe for salt water pools, salt chlorinators, bromine, chlorine, and all standard pool chemicals

✅ Indefinite Corrosion Resistance – Titanium withstands chemical attack from all known pool treatments

✅ No Galvanic Reaction – Eliminates the risk of corrosion from dissimilar metal contact, a major cause of premature heat exchanger failure

✅ Higher Flow Rate Capacity – Titanium’s properties allow operation at higher flow rates than other materials, potentially enabling selection of a smaller unit

✅ Longest Service Life – The ultimate “fit and forget” solution backed by 10-year titanium guarantee

Water Chemistry Guidelines (From Manufacturer)

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

Material Comparison

Feature	Titanium (This Model)	Cupro-Nickel	Stainless Steel
Salt Water Pools	✅ Yes	✅ Yes	❌ No
Salt Chlorinators	✅ Yes	✅ Yes	❌ No
Chlorinated Pools	✅ Yes	✅ Yes	✅ Yes
Freshwater Pools	✅ Yes	✅ Yes	✅ Yes
Corrosion Resistance	Excellent	Very Good	Good
Warranty Period	10 Years	Standard	Standard

🎯 Applications & Use Cases

The Bowman EC80-5113-1T is designed for:

🏊‍♂️ Residential Swimming Pools – Ideal for domestic pools up to 50,000 litres requiring reliable, low-maintenance heating

🌊 Salt Water Pool Systems – Full titanium construction provides complete compatibility with saline environments and salt chlorinators

🛁 Spa & Hot Tub Installations – Compact size suits smaller volume, higher temperature applications

🔥 Boiler-Fed Heating Systems – Optimised for conventional gas, oil, or LPG boiler connections

☀️ Solar Thermal Integration – Compatible with solar panel systems (refer to EC120/EC160 models for dedicated solar applications)

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

🏠 Indoor & Outdoor Pools – Suitable for all installation environments when housed in frost-free enclosure

🔨 Installation Considerations

Mounting Requirements

• Orientation: Vertical or horizontal mounting permitted
• Location: Must be installed in a frost-free, dry area with non-aggressive atmosphere
• Access: Ensure adequate clearance for end cover removal during maintenance
• Position: Install downstream of pump and filtration equipment

Connection Requirements

• Pool Water: Solvent weld connections accepting Ø48mm or Ø50mm pipe (Universal Fit end covers)
• Boiler/Heat Source: 3/4″ BSP threaded connections
• Pipe Engagement:
  • Metric 50mm pipe: 28mm insertion depth
  • Imperial 1½” NPS pipe: 56mm insertion depth (full recess required for watertight seal)

Critical Installation Points

⚠️ Counter-Flow Installation Required – Pool water must flow in opposite direction to heating water for optimal performance. Failure to install correctly will reduce heat transfer efficiency.

⚠️ Chemical Dosing Position – Automatic dosing systems must be installed AFTER the heat exchanger with a non-return valve to prevent chemical damage.

⚠️ Thermostat Location – Install temperature sensor in the integral thermostat pocket on the pool water inlet side for accurate control.

⚠️ Isolation Valves – Fit isolation valves on both circuits for maintenance access.

⚠️ Professional Installation Recommended – For warranty compliance and optimal performance, installation by a qualified plumber or pool engineer is strongly advised.

📥 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

✅ 100+ Years of British Manufacturing Excellence – EJ Bowman has been producing heat transfer solutions since 1920s, based in Birmingham, UK

✅ Industry-Leading Titanium Guarantee – Full 10-year warranty on all titanium material in contact with pool water

✅ Proven Global Performance – Tens of thousands of units operating worldwide, from private spas to Olympic facilities

✅ Superior Tube Density – More heat transfer tubes than most competitors for up to 3x faster heating

✅ Universal Fit Design – Simplified installation with end covers accepting multiple pipe sizes

✅ Comprehensive Spare Parts Availability – Full range of replacement tube stacks, seals, and components readily available

✅ Trusted by Professionals – Specified by pool installers and engineers for reliability and performance

🛒 Why Buy From Parts4Tubs

✅ UK-Based Pool Heating Specialists – Expert knowledge of swimming pool and spa heating systems

✅ Genuine Bowman Products – Authorised stockist supplying authentic manufacturer equipment

✅ Technical Support – Sizing advice and installation guidance from experienced team

✅ Fast UK Delivery – Prompt dispatch to get your project completed quickly

✅ Competitive Pricing – Trade and retail pricing on professional-grade equipment

✅ After-Sales Service – Ongoing support and spare parts availability

✨ Summary

The Bowman EC80-5113-1T Titanium Heat Exchanger delivers professional-grade pool heating performance in a compact, lightweight package. With its full titanium tube stack backed by a 10-year guarantee, this unit provides unmatched corrosion resistance for salt water pools, chlorinated systems, and demanding chemical environments. Rated at 25kW with 82°C boiler water and suitable for pools up to 50,000 litres, the EC80-5113-1T represents the ideal choice for homeowners seeking reliable, low-maintenance heating from a trusted British manufacturer with over a century of heat transfer expertise.