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vented sealed central heating system
An increasingly popular type of central
heating system because of its simplified design. The system is fed and
pressurised with water direct from the mains, then sealed. This eliminates
the need for the system water feed tank and open vent pipework in the loft,
which therefore simplifies and reduces the cost of the installation process
and reduces maintenance requirements. In the diagram on the right, a conventional
tank-fed indirect hot water cylinder has been used with its own header tank
in the loft.
Related category
• HEATING
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