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ATAG Boilers Boiler Efficiency Rating

The ambition of ATAG to manufacture highly efficient and reliable boilers has seen the company grow far beyond their routes in the Netherlands to heat homes all around the world. Not really a surprise when you consider that their Combi, System and Regular boilers have the highest energy efficiency rating available.

ATAG are so confident in their range of boilers that they all come with a lengthy 10 year warranty as standard, unique to the UK, covering parts and labour.

ModelTypeFuelEfficiency
ATAG A200SCondensingGas89.4%
ATAG A200S OVCondensingGas89.4%
ATAG A203CCondensingGas89.3%
ATAG A320SCondensingGas89.5%
ATAG A320S XCondensingGas89.8%
ATAG A325CCondensingGas89.4%
ATAG A325C XCondensingGas89.7%
ATAG A325ECCondensingGas89.2%
ATAG A325EC XCondensingGas89.7%
ATAG Blauwe Engel SHR 15CondensingGas89.3%
ATAG Blauwe Engel SHR 24CondensingGas89.3%
ATAG Blauwe Engel SHR 24TCondensingGas89.2%
ATAG Blauwe Engel SHR 35CondensingGas89.0%
ATAG Blauwe Engel SHR 35TCondensingGas88.9%
ATAG Blauwe Engel SHR 51CondensingGas89.2%
ATAG Blauwe Engel SHR 51 LCondensingGas89.0%
ATAG Blauwe Engel SHR 51 TLCondensingGas89.0%
ATAG Blauwe Engel SHR 51TCondensingGas89.1%
ATAG Blauwe Engel SHR 60CondensingGas89.0%
ATAG E22CCondensingGas89.4%
ATAG E22SCondensingGas89.5%
ATAG E32CCondensingGas89.4%
ATAG E32SCondensingGas89.5%
ATAG iC Economiser 27CondensingGas89.7%
ATAG iC Economiser 35CondensingGas89.7%
ATAG iC Economiser 39CondensingGas89.7%
ATAG iC24CondensingGas89.7%
ATAG IC24LPGCondensingLPG90.7%
ATAG iC28CondensingGas89.7%
ATAG IC28LPGCondensingLPG90.7%
ATAG iC36CondensingGas89.7%
ATAG IC36LPGCondensingLPG90.8%
ATAG iC40CondensingGas89.7%
ATAG IC40LPGCondensingLPG90.8%
ATAG iR15CondensingGas89.8%
ATAG IR15LPGCondensingLPG90.8%
ATAG iR18CondensingGas89.8%
ATAG IR18LPGCondensingLPG90.8%
ATAG iR24CondensingGas89.8%
ATAG IR24LPGCondensingLPG90.8%
ATAG iR32CondensingGas89.8%
ATAG IR32LPGCondensingLPG90.9%
ATAG iR40CondensingGas89.8%
ATAG IR40LPGCondensingLPG90.8%
ATAG iS15CondensingGas89.8%
ATAG IS15LPGCondensingLPG90.8%
ATAG iS18CondensingGas89.8%
ATAG IS18LPGCondensingLPG90.8%
ATAG iS24CondensingGas89.8%
ATAG IS24LPGCondensingLPG90.8%
ATAG iS32CondensingGas89.8%
ATAG IS32LPGCondensingLPG90.9%
ATAG iS40CondensingGas89.8%
ATAG IS40LPGCondensingLPG90.8%
ATAG Premier E-SHR 24CondensingGas89.0%
ATAG Premier E-SHR 24TCondensingGas89.3%
ATAG Premier E-SHR 35CondensingGas89.0%
ATAG Premier E-SHR 35TCondensingGas88.9%
ATAG Premier E-SHR15CondensingGas89.3%
ATAG Q25CCondensingGas89.3%
ATAG Q25SCondensingGas89.6%
ATAG Q25SCCondensingGas89.6%
ATAG Q38CCondensingGas89.3%
ATAG Q38SCondensingGas89.4%
ATAG Q38SCCondensingGas89.4%
ATAG Q51CCondensingGas89.4%
ATAG Q51SCondensingGas89.5%
ATAG Q60SCondensingGas89.5%
ATAG XL70CondensingGas89.5%