From Pahlén AB in Sweden comes the Aqua Mex heat exchanger featuring a non-corrosive glass reinforced polypropylene housing combined with titanium coils as standard for high efficiency.

The titanium coil is a combination of several single tubes twisted into a spiral, which is claimed to increase the contact surface within the exchanger body and is also designed to considerably reduce pressure loss.

The Aqua Mex is available in 40, 70 and 100kW capacities, and the two smaller-capacity units are available as fully equipped versions, complete with circulation pump on the primary circuit, digital temperature control, flow switch and a non-return valve on the primary circuit.

These ‘plug and play’ versions are said to be installable in half an hour. A wall mounting kit and 63mm union connections are standard.