Feed and Expansion Tank

Feed and Expansion Tank

Feed and Expansion Tank Brochure

23.09.2013 Does Your Thermal Store Require a Feed and Expansion Tank?

Primary Feed and Expansion Tanks are generally used in open vented central heating systems, where a small water tank is located in the loft for the purpose of feeding and topping up the primary system and providing a receptacle should the primary water expand.

With normal gas and oil boilers there is little or no likelihood of this water being near boiling temperature.  However when Solid Fuel/Woodburning Stoves are used, there is a possibility that water close to, or at boiling point, may expand into the tank and this requires the tank to be made from a high temperature material.

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