EC100-5102-2 – with NPT connections – 150,000 Btu/h

The perfect choice for heating hot tubs, spas and small swimming pools with a domestic boiler.

Typical Heat Transfer from a boiler:

150,000 Btu/h

The Bowman EC100-5102-2 is an extremely versatile heat exchanger, which is suitable for use with both larger spas and hot tubs, or domestic swimming pools up to 3,200 ft³, via a boiler heat source. It features ‘Universal Fit’ composite end covers, for easy installation into pool or spa pipework and a choice of either a titanium, cupro-nickel, or stainless steel tube core.

Product Benefits

Proven

Heats spas and hot tubs extremely fast, reducing energy costs

Easy to install

Solvent weld end covers with thermostat pocket

Durability

Salt water and mineral rich fresh water compatible

Simple to maintain

Easy disassembly for routine maintenance

Titanium Models

Full 10 year warranty on titanium materials

Typical Heat Transfer from a boiler:

150,000 Btu/h

The Bowman EC100-5102-2 is an extremely versatile heat exchanger, which is suitable for use with both larger spas and hot tubs, or domestic swimming pools up to 3,200 ft³, via a boiler heat source. It features ‘Universal Fit’ composite end covers, for easy installation into pool or spa pipework and a choice of either a titanium, cupro-nickel, or stainless steel tube core.

Product Benefits

Proven

Heats spas and hot tubs extremely fast, reducing energy costs

Easy to install

Solvent weld end covers with thermostat pocket

Durability

Salt water and mineral rich fresh water compatible

Simple to maintain

Easy disassembly for routine maintenance

Titanium Models

Full 10 year warranty on titanium materials

Typical Heat Transfer from a boiler:

150,000 Btu/h

The Bowman EC100-5102-2 is an extremely versatile heat exchanger, which is suitable for use with both larger spas and hot tubs, or domestic swimming pools up to 3,200 ft³, via a boiler heat source. It features ‘Universal Fit’ composite end covers, for easy installation into pool or spa pipework and a choice of either a titanium, cupro-nickel, or stainless steel tube core.

Features

Simple to Maintain

Simple to Maintain

The modular design means that end covers on all models are easily removable, enabling the tube stack to be easily extracted from the outer ‘shell’ ensuring all maintenance requirements are simple and straightforward.

Energy Saving

The faster a pool gets to the required temperature, the lower the energy costs! Bowman units heat pools up to three times faster and the result is reduced energy costs and improved pool availability.

Shell and Tube Design

Shell and Tube Design

The tube stack is packed with tubes and internal baffles to provide the largest and most effective surface area, enabling the unit to heat pools considerably faster than some competitors’ products.

Specification

Technical Drawing / Dimensions

Note – All dimensions in mm (except threaded connectors)

Performance Chart

*Not suitable for use on pools fitted with salt water chlorinators or salt water pools.

Performance Graphs / Pressure Drop Curves

Water Flow

As the graphs and table above illustrate, providing the right water flow volume is vital to the performance of the heat exchanger. If the flow rate of either the hot water supply, or the pool water circuit is too low, the heat exchanger will not perform at its designed efficiency and will be unable to transfer all the available heat energy in to the pool water. For more information, please read: Why doesn’t my pool heat up faster?

Universal Fit End Covers

The EC120-5113-3 with EC100-5102-2 ‘Universal Fit’ composite end covers, designed for use with either 1.5” nominal pipe size (48mm O/D) or metric 50mm O/D pool pipework. The ‘socket union’ component enables either diameter to be accommodated, as shown on the following cross section illustration.

Installation Diagram

Refer to the following diagram for how to install the heat exchanger in the pool system. The heat exchanger can be mounted either horizontally or vertically as per the schematic.

If an automatic dosing system is added, it must be installed after the heat exchanger on the return to the pool.

Technical Drawing / Dimensions

Note – All dimensions in mm (except threaded connectors)

Performance Chart

*Not suitable for use on pools fitted with salt water chlorinators or salt water pools.

Performance Graphs / Pressure Drop Curves

Water Flow

As the graphs and table above illustrate, providing the right water flow volume is vital to the performance of the heat exchanger. If the flow rate of either the hot water supply, or the pool water circuit is too low, the heat exchanger will not perform at its designed efficiency and will be unable to transfer all the available heat energy in to the pool water. For more information, please read: Why doesn’t my pool heat up faster?

Performance Graphs / Pressure Drop Curves

The EC120-5113-3 is supplied with ‘Universal Fit’ composite end covers, designed for use with either 1.5” nominal pipe size (48mm O/D) or metric 50mm O/D pool pipework. The ‘socket union’ component enables either diameter to be accommodated, as shown on the following cross section illustration.

Installation Diagram

Refer to the following diagram for how to install the heat exchanger in the pool system. The heat exchanger can be mounted either horizontally or vertically as per the schematic.

If an automatic dosing system is added, it must be installed after the heat exchanger on the return to the pool.

Downloads

No download content found.

5102-2 Product Profile (North America)

Find specific information, drawings, performance graphs and pressure drop data on the EC100-5102-2 swimming pool heat exchanger product profile leaflet.

Related Products

EC80-5102-1 – with NPT connections – 85,000 Btu/h

EC80-5102-1 – with NPT connections – 85,000 Btu/h

EC120-5102-3 – with NPT connections – 250,000 Btu/h

EC120-5102-3 – with NPT connections – 250,000 Btu/h

FC100-5103-2 – with NPT connections – 340,000 Btu/h

FC100-5103-2 – with NPT connections – 340,000 Btu/h

FAQs

FAQs

If your pool isn’t heating up to the required temperature, there are a few possible causes. Using this checklist could help you locate the problem:

1: Do I have enough energy?
Whether heating your pool with a gas boiler, solar panels, a heat pump, or another energy source, it is important you have enough energy to do the job.

2: Do I have the right heat exchanger?
A common misconception is the larger the heat exchanger, the faster it heats the pool! However, this isn’t necessarily the case. There are many types of heat exchangers used to heat swimming pools and they differ dramatically in design, performance and heat transfer efficiency.

3: My heating system is adequate but my pool still fails to heat up!
Flow rates of both the hot and cold fluids are vital for the heat exchanger to transfer thermal energy to the pool. If the hot water flow rate is too low, the available energy will not be passed through the heat exchanger. However, the flow rate of the pool water is equally important.

4: And if you’ve done all that…
Even if all the equipment is adequately sized, there may still be other parts of the system creating issues that will need to be checked.

5: In summary…
This is a summary of a more detailed article designed to help identify problems with pool heating and heat exchangers. Read the complete article here.

More product information on Bowman swimming pool heat exchangers.

Selecting the correct heat exchanger is very important to ensure the pool heats up quickly to desired temperature. The main issues to consider when sizing a swimming pool heat exchanger are;

Pool size – what is the water capacity? Heat exchangers are sized according to capacity, so a unit designed to heat a 80 m³ (18,000 gal) pool would be no use, if you have an 180 m³ (39,500 gal) pool.
How is it heated? Usually, the choice is either a boiler or renewable energy. If it’s renewable energy, select a heat exchanger specially designed for the lower temperature water provided by solar panels or heat pumps, as these units need less energy to heat the pool to the required temperature.
Boiler water temperature – however, most pools will be heated by boilers, so what is the temperature of the boiler water? Usually, it’s between 80 °C and 85 °C – the ideal temperature for pool heating. Some boilers are lower – around 60 °C. So, using 82 °C water, a heat exchanger providing 110 kW should heat your 180 m³ pool efficiently. But if the boiler water temperature is only 60 °C, the heat available to transfer drops to around 60 kW – a reduction of over 40%, so a larger heat exchanger would be required for the pool to achieve full temperature.
What are the water flow rates? Flow rates are vital for the heat exchanger to transfer thermal energy to the pool. If the hot water flow rate is too low, the available energy will not be passed through the heat exchanger. However, the flow rate of the pool water is equally important. People often think it is important to generate a large temperature differential between the pool water entering and leaving the heat exchanger. They are happy, if the pipework connected to the outlet of the heat exchanger is noticeably warmer than it is at the inlet. In reality, this actually reduces the efficiency of the heat transfer process! This is because the pool water flow is too low – the water remains in the heat exchanger for too long, so a much smaller volume of water is being heated to a slightly higher temperature. However, with higher flow rates, the time taken to turn over the pool water will reduce and even a small increase in the temperature of the pool water through the heat exchanger (1.5 °C for example) will have a greater effect on the heating efficiency of the pool.

More information about heat exchanger selection, read the article ‘Why doesn’t my pool heat up faster?’

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Get in Touch

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Tel: +44 (0)121 359 5401
E-mail: [email protected]

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