Unvented cylinders for domestic hot water

Cylinders from Glow-worm for unvented domestic hot water come in six sizes from 115 to 300 l. They operate direct from a mains water supply and recover in 20 minutes. Heat loss is as little as 70 W. These cylinders are made of high-grade stainless steel with all seams laser welded. They come with a 25-year guarantee against shell perforation. All water and electrical connections are at the front of the cylinder, with controls and wiring in a covered box. An electric immersion heater is included for backup.

Related links:

• www.glow-worm.co.uk