Quookers can be fitted into new kitchens and also retrofitted into existing ones. To install a Quooker, all that is required is space for the tank (see the technical overview here), a 13 amp power socket, access to waste pipe and a cold water supply underneath the work surface within 500mm. A minimum incoming cold water pressure of 2 bar is required.
The Quooker PRO3 tank requires 400mm of height space and is 150mm in diameter. The Quooker PRO3E tank requires 450mm of height space and is 150mm in diameter. The Quooker PRO7 and Combi 2.2 tanks require 470mm of height space and are 200mm in diameter. The Quooker PRO7E and Combi 2.2E tanks require 520mm of height space and are 200mm in diameter.