Cast-iron replacement boilers reduce energy consumption

Cast iron
Direct replacements for cast-iron boilers from Hamworthy’s Purewell VariHeat range are significantly reducing energy consumption at the University of the West of England.
Boilers at the University of the West of England in Bristol are being replaced with Hamworthy Purewell VariHeat condensing boilers with cast-iron sections as part of a programme of upgrading plantrooms. Four of six plantrooms have been upgraded — and energy savings are already apparent. Richard Snelgrove, mechanical engineer with UWE, says, ‘The previous boilers were due for replacement, and we made the decision to replace them with condensing boilers with cast-iron sections. We also wanted fully modulating capabilities, so Hamworthy’s Purewell VariHeat boilers met our requirements perfectly. The heating systems have already shown significant energy savings compared to last year, and we expect the savings to grow.’ Purewell VariHeat boilers have been designed as a direct replacement for traditional cast-iron atmospheric boilers. They retain all the benefits, but have 50% higher output and exceptional seasonal efficiencies. A downward firing premix burner keeps the burner clear of condensate, and a secondary heat exchanger in the base of the boiler maximises heat recovery from flue gases. The are five models in the condensing range with outputs ranging from 70 to 180 kW.
Related links:



modbs tv logo

BCIA welcomes tougher commercial building energy standards but calls for greater ambition across the wider sector

The Building Controls Industry Association (BCIA) has welcomed the government’s confirmation that privately rented non-domestic buildings over 1,000 square metres in England and Wales will be expected to achieve a minimum EPC B rating by 2031, describing the move as an important step forward in improving the energy performance of the UK’s commercial building stock.

GOLDBECK commits to three-year schools partnership to inspire Cardiff’s future construction talent

GOLDBECK has launched a new long-term education initiative in Cardiff, committing to support three local primary schools as part of a programme designed to introduce young children to enterprise, careers and the wider world of construction.