40m2 ECO Water Underfloor Heating Kit40m2 ECO Water Underfloor Heating Kit Our water underfloor heating kits are ideal for installations where you are looking to add an extension or renovate an existing project using screeded floors. Our 40m2 eco water underfloor heating kit is supplied with economical components that have been installed in 100s of homes throughout the UK. If you are looking for a tailored quote for multiple rooms or want us to design a system to suit your building