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Date: 2018-04-19 12:31:54 | HELPFUL ADVICENo.2 How your central heating programmer or time clock works A programmer allows you to switch the hot water and heating system in your home on or off. It also allows you to set the periods duAdd to Reading ListSource URL: www.nwleics.gov.ukDownload Document from Source WebsiteFile Size: 2,05 MBShare Document on Facebook |