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EC80-5113-1 – 25 kW

The perfect choice for heating hot tubs, spas and small swimming pools with a domestic boiler.
Typical Heat Transfer from a boiler:

25 kW

The Bowman EC80-5113-1 is a compact, yet highly efficient heat exchanger, that is designed for heating spas, hot tubs and domestic swimming pools up to 50 m³, 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:

25 kW

The Bowman EC80-5113-1 is a compact, yet highly efficient heat exchanger, that is designed for heating spas, hot tubs and domestic swimming pools up to 50 m³, 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:

25 kW

The Bowman EC80-5113-1 is a compact, yet highly efficient heat exchanger, that is designed for heating spas, hot tubs and domestic swimming pools up to 50 m³, 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

Specification

Downloads

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

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 EC80-5113-1 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.

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.

5113-1 Product Profile

Find specific information, drawings, performance graphs and pressure drop data on the EC80-5113-1 swimming pool heat exchanger product profile leaflet.

Download

Related Products

EC100-5113-2 – 50 kWEC100-5113-2 – 50 kW
EC120-5113-3 – 70 kWEC120-5113-3 – 70 kW
FC100-5114-2 – 100 kWFC100-5114-2 – 100 kW

FAQs

FAQs

Most hot tubs are supplied with an integral electric heater, usually around 3 kW output, depending on the water capacity. However, more recently, there has been a growing trend to use gas heating via an external boiler as this is faster at heating up the water compared to electric. This means when you are not using the hot tub, you can keep it at a lower temperature, or even switch the heating off completely, because it won’t take long to bring it up to the temperature when you are ready to use it.

The main reason is the length of time required to heat a hot tub with an electric heater – typically up to 24 hours, using cold water. To speed things up, some owners ‘pre-fill’ their tub with hot water from a boiler, but even this can require a further 6 to 10 hours of heating to achieve the required 38-40 °C temperature.

Whilst many domestic users were prepared to put up with the inconvenience, commercial users such as holiday parks, could not!

The demand for hot tubs when booking holiday accommodation has risen dramatically and is now the second most requested guest facility. To meet this demand, holiday venues had to find a faster way of heating them, due to guest changeover periods. Typically, there is only around 4-5 hours available to drain, clean, re-fill and heat up a hot tub before new guests arrive.

The solution was relatively simple – use an external heat source such as a gas boiler and simply bypass the hot tub’s electric heater. To enable this, a heat exchanger is required to transfer heat from the boiler water to the hot tub water. It’s exactly the same principle used for most swimming pools, but just on a smaller scale.

Bowman developed an ultra-compact heat exchanger that could be installed in the hot tub’s pipework and the result was hot tubs heated in 3-4 hours using cold water, or in around 1 hour using pre-heated water.

There was also another benefit. Heating hot tubs with electricity can be very expensive. By switching to gas boiler heating, many users reported a significant reduction in the energy costs – some as much as £500.00 per hot tub!

How holiday parks can benefit by switching to gas heating.

More information on Bowman’s hot tub heat exchangers.

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

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