The Potterton Titanium 30 heat only boiler weighing only 19.5kg is one of the lightest boilers available in the UK. Compact and easy to install, this wall-mounted Potterton Titanium heat only boiler (also called regular, open vent or conventional) with its small dimensions is ideal for installation in a standard kitchen cupboard. With outputs from 12kW to 30kW, there's a model to suit most properties and pockets. Versatile fluing with a rear flue option for ease of installation.