英国采购需求：水箱，水箱水箱，水箱水箱，水箱水箱，无水箱加热器，热水器

We are looking for a fully integrated hot water cylinder with a buffer tank that is completely pre-plumbed to work seamlessly with an air source heat pump. It's important for us that the system is designed for efficient and straightforward installation, minimizing the need for any additional plumbing work. Could you please provide detailed information regarding the specifications, available models, and pricing options for this product? We are keen to understand the features, warranty, and any installation requirements. Your prompt response would be greatly appreciated as we aim to move forward quickly with our project.