Open Vented Hot water storage cylinders
- Open vented hot water storage cylinders were the norm before the introduction of unvented cylinders.
- Still commonly used for solid fuel applications with large diameter coils to allow for gravity circulation.
- Direct cylinders are heated directly by an immersion heater.
- Indirect cylinders are heated indirectly by another heat source (e.g. gas, oil or biomass boilers) through an internal coil.
Select Option Direct or Indirect