Damaged packaging. See photos. The Altecnic Buffer Tank for Heating Pumps is a 25L tank that provides efficient and reliable heat transfer. This tank is designed for use with heat pumps and comes with a range of items including a tank and a power source of heat. Additionally, this product is perfect for those who are looking for a reliable solution for their home heating needs. With the Altecnic Buffer Tank, you can expect a high-quality product that is perfect for your heating needs. The tank is made from durable materials and comes with a range of features that make it easy to use and maintain. Overall, this is an excellent choice for anyone who is looking for a reliable and efficient heating solution for their home.