Heat Exchangers - Stainless Steel

Heat Exchangers - Stainless Steel

Item: 71


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available Available

60,000 btu
Was £344.59 Now £259.99 (Available)
100,000 btu
Was £370.75 Now £279.99 (Available)
130,000 btu
Was £402.38 Now £299.99 (Available)
170,000 btu
Was £426.83 Now £319.99 (Available)
230,000 btu
Was £483.85 Now £339.99 (Available)

Product Description


Heat Exchangers  - Stainless Steel

By utilising a heat exchanger you can create the most economical and efficient way of heating a Koi pond.
Linked to a boiler, the heat is transferred to the pond via the heat exchanger. The final selection of a heat exchanger should be ascertained by pond capacity, boiler output, heat retention properties and positioning of equipment.

The output specification of the heat exchanger is the maximum that may be reasonably expected the unit to produce, so it is therefore highly recommended to upgrade to the next output size if in any doubt.
Example: If you need a 60,000 btu, buy a 100,000 btu.
It is important that the correct rated boiler is used for the size and gallonage of the pond and that the flow rates are not exceeded. The maximum flow rates for the primary and secondary circuits are stated on the label fixed on the front of the boiler along with the relevant rating of that specific heat exchanger.

G M Heat Exchangers are manufactured from quality marine grade type 316 stainless steel.
Each unit undergoes 12 stringent tests during quality control production.
Each unit is tested to 70 p.s.i before leaving the factory and each one is guaranteed for a full 12 months from purchase date, subject to essential conditions are strictly followed during the installation and working life

All units must be installed vertically. Care must be taken to insure that no chemical residue can enter the heat exchanger when the system is not running. It is recommended to maintain a constant pH between 7.2 & 7.6 to prevent excessive scaling deposits and corrosion.
It is paramount that the unit is installed in an upright position; with the primary and flow connections from the boiler set top and bottom.
The secondary flow, which is the heated flow to the pond (usually after filtration), is then connected to the top right and the flow though which transfers the heated water to the pool will be situated at the lower left outlet. All threaded connections are standard BSP thread.

Sizes and GPH Data:
Heat Exchanger 60,000 btu - Max Gallons 3,000 - Max gph 900 - single coiled
Heat Exchanger 100,000 btu - Max Gallons 5,000 - Max gph 1,440 - single coiled
Heat Exchanger 130,000 btu - Max Gallons 6,500 - Max gph 1,860 - single coiled
Heat Exchanger 170,000 btu - Max Gallons 8,500 - Max gph 2,460 - single coiled
Heat Exchanger 230,000 btu - Max Gallons 11,500 - Max gph 3,300 - single coiled
Heat Exchanger 460,000 btu - Max Gallons 23,000 - Max gph 8,580 - double coiled



These heat exchangers are supplied without fittings.

The connections on the heat exchanger are - pond water inlet & outlet 1½" Male Thread - Boiler inlet & outlet 1" Male Thread 


Courier Delivery: Next Working Day Service (for in stock items)
Courier Delivery Saturday Delivery Service
Royal Mail - First & Second class: 1-3 Working Day Service

If a product is deemed to be fragile/bulky or heavy, surcharges may be added to your delivery charges at checkout.
An item will be noted as In stock when you select the product and size you require. Available items are usually in stock that day or within 1-2 working days, with the exception of some bulkier or high value items.
All delivery service times apply to stock items ordered before 1pm

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