The Energy 35 Store is a fully integrated wall hung boiler, which combines the benefits of both a system and combi boiler in one package. It provides efficient heating and instant, unlimited domestic hot water, making it perfect for larger properties with a high domestic hot water demand. The two 21 litre insulated tanks, housed inside the unit, provide a short re-heat time of less than 5 minutes and can significantly reduce heat loss. Energy 35 Store avoids the need to put in a hot water cylinder - reducing complexity, installation time and cost.