The Horizontal Direct External expansion vessel stainless steel unvented cylinder has the pressure expansion vessel fitted on the pipe work by the cylinder. The horizontal unvented cylinder is perfect for use in lofts or attics where there is a height restriction. The direct unvented cylinder is heated by two immersion heaters fitted directly into the cylinder producing the hot water. Tthe direct is available in the Thermsaver horizontal.

All horizontal unvented cylinders are made to order and delivery is approximately 10-14days