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	Grant Engineering : Grant : Vortex - Utility 26-36 OIL : Regular : Condensing : Floor mounted : ( 26 - 36 kW)	Seasonal efficiency: − 97.0%
	Grant Engineering : Grant : Vortex Utility 26-36S OIL : Regular : Condensing : Floor mounted : ( 26 - 36 kW)	Seasonal efficiency: − 97.0%
	Grant Engineering : Grant : Condensing - Outdoor 90-120 OIL : Regular : Condensing : Floor mounted : ( 26 - 36 kW)	Seasonal efficiency: − 97.0%
	Grant Engineering : Grant : Vortex Boilerhouse 90-120 OIL : Regular : Condensing : Floor mounted : ( 26 - 36 kW)	Seasonal efficiency: − 97.0%
	Grant Engineering : Grant : Vortex - Utility 15-26 OIL : Regular : Condensing : Floor mounted : ( 15 - 26 kW)	Seasonal efficiency: − 95.0%
	Grant Engineering : Grant : Vortex - Utility System 15-26S OIL : Regular : Condensing : Floor mounted : ( 15 - 26 kW)	Seasonal efficiency: − 95.0%
	Grant Engineering : Grant : Condensing - Outdoor 50-90 OIL : Regular : Condensing : Floor mounted : ( 15 - 26 kW)	Seasonal efficiency: − 95.0%
	Grant Engineering : Grant : Vortex Boilerhouse 50-90 OIL : Regular : Condensing : Floor mounted : ( 15 - 26 kW)	Seasonal efficiency: − 95.0%
	Grant Engineering : Grant : Vortex Wall Hung Module 40-55 OIL : Regular : Condensing : Wall mounted : ( 12 - 16.5 kW)	Seasonal efficiency: − 94.9%
	Grant Engineering : Grant : Vortex Wall Hung Indoor 40-55 OIL : Regular : Condensing : Wall mounted : ( 12 - 15.6 kW)	Seasonal efficiency: − 94.9%

Building Regulations 2007 Boiler Efficiency Requirement

Under the revised Building Regulations Part L (S.I. No. 854 of 2007):
After the 31st day of March 2008, oil and gas fired boilers in new dwellings must meet a minimum seasonal net efficiency of 86% and where oil and gas fired boilers are being installed as replacements in existing dwellings, those boilers must meet a minimum seasonal net efficiency of 86% where practicable.