The advanced burner and condensing heat exchanger extract more heat from the energy source, translating to a 20% decrease in running costs.

Two calorifiers are available in 180 and 300 litre sizes. Manufactured in New Zealand, they feature a large 20kW heat exchanger capable of reheating over 250 lph. These operate on mains pressure to supply hot water at over 40 litres per minute.

A backup water-heating element is also included in the calorifier.