Our brochures are in .pdf format and available to read through digitally, if you want to a printed duplicate be sure to don't hesitate to have in contact with our pleasant customer support staff. You'll need Area - exterior with the pump and inside of for your h2o storage tank. https://purethermal.co.uk/media-news/q4-launch-lithium-large-capacity-r290-ashp-from-pure-thermal-and-enerblue/