| Internal Hot Water Coil Thermal Stores - Direct Thermal Stores accept a heat input to the primary water usually from a wood burner or other open vented system. They are usually always also fitted with an electrical immersion heater as a back up.
- Indirect Thermal Stores have the same function and design as a direct unit with the addition of an internal indirect coil. This is very useful when an additional heat source is available such as a solar thermal system.
Select Direct or Indirect |
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