Hamworthy develops condensing replacement for cast-iron boilers

Published:  01 November, 2013

Hamworthy, boiler, DHW, cast iron condensing, space heating

Hamworthy Heating has continued to invest in cast-iron boiler technology to enable the company to offer cast-iron condensing boilers with efficiencies of up to 108.8%. This figure is compliant with the efficiency requirements outlined in the recently published Energy Related Products Directive Lot 1.

Purewell VariHeat cast-iron condensing boilers are described as the perfect solution for retrofit installations where the boiler plant, not the entire system, is being replaced. These boilers are tolerant of older heating systems and can sit on the same footprint as their atmospheric predecessors. They can also be easily connected to existing pipework to speed up installation. Their sectional construction enables them to be assembled on site, overcoming access problems.

There are five models with outputs from 63 to 173 kW at 80/60°C flow/return temperatures and 70 to 180 kW at 50/30°C. Turndown ratio is to a third of full output.

Keith Thompson, sales and marketing director, explains, ‘There is a large installed base of cast-iron atmospheric in the UK’s commercial building stock requiring a simple replacement boiler that will deliver better efficiencies.’

For more information on this story, click here: November 2013, 80

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