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1. A heating system comprising at least two thermal batteries each comprising a storage container for holding a fluid, an outlet fluid conductor through which the fluid exits said storage container, an inlet fluid conductor through which the fluid enters said storage container, a first valve interposed in said outlet fluid conductor; and a second valve interposed in said inlet fluid conductor, wherein each of said at least two thermal batteries is configured to be thermally chargeable and dischargeable by controlling said first valve and said second valve to allow a flow of the fluid in concert and to disallow a flow in concert and at least two heat transfer fluid conductors each disposed through the fluid of one of said at least two thermal batteries from an inlet point at a storage container of said one of said at least two thermal batteries to an outlet point at said storage container of said one of said at least two thermal batteries, each of said at least two heat transfer fluid conductors configured to receive a second fluid at a first temperature at said inlet point and to supply the second fluid at a second temperature higher than said first temperature and said at least two heat transfer fluid conductors are connected in parallel, the flow rate of said second fluid is controlled using a proportional valve at said inlet point to allow more than one of said at least two heat transfer fluid conductors to receive their respective second fluid simultaneously.
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