The Glow-Worm Ultracom 12 15 18 24 30 & 38 HXI Boiler Gasket Exchanger 0020038076 Z is a compact gas boiler part designed for indoor mounting. With a high energy efficiency rating of A+++, this boiler offers a first hour recovery rate of 204 litres per hour. Suitable for use with a voltage of 220/240V and an amperage of 24A, this boiler is part of the Glow-Worm brand's range of heating solutions for homes. Ideal for those looking for a reliable and efficient heating system, this boiler gasket exchanger is a crucial component in maintaining a warm and comfortable living space.