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CK5 boilers are made from Grade GG20 cast iron and conform with the requirements of EN 303-1

CK5 cast iron sectional boilers are designed for use in either open vented or pressurised heating systems up to 6 bar working pressure with gas or oil burners. There are four models in the range 40 kW to 70 kW. These are 3-pass boilers, ensuring that they comply with the efficiency requirements of ADL2B of Part L 2006 of The Building Regulations.

• Seasonal efficiency of over 84% gives compliance with ADL2B 2006 without the need for additional heating credits
• Compact heat exchanger gives small footprint relative to output
• Delivered as a ready-assembled block
• Range of 1-stage gas and oil burners available