There are numerous types of water heaters broadly classified as being vented or unvented, instant or storage and heated directly or indirectly with or without pumped return pipework.
Vented types provide a gravity low pressure supply; unvented types are supplied directly from the mains or a boosted cold water supply.
Unvented water heaters are generally regarded as having a lower risk profile with electrically heated point of use and multi-point water heaters with a storage capacity of 15 litres or less having specific mention in the latest technical guidance as low risk installations.
Watertec supplies and installs low risk mains fed water heaters up to 30li capacity as a direct replacement for smaller tank fed systems. Our Gas Safe accredited trading partner has the expertise to specify and install larger and more complex water heating systems.