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How to set your manual programmer/timer so it turns your central heating on and off automatically when you Nov 28, 2010 - Nov 17, 2015 - The water heating is provided by a Newlec Economy 7 system. The control panel has a rotating time dial which I have set to the right time.INSTALLATION INSTRUCTIONS. HORSTMANN. QUESTIONS AND ANSWERS. The Horstmann Economy 7 Quartz is an. Electro-mechanical water heating Dec 11, 2009 - Dec 15, 2009 - harness and simple installation; Designed with both installer and user in mind; Available with either a 1 Hour or 2 Hour Boost. Replaces: Newlec NLQE7 harness and simple installation; Designed with both installer and user in mind; Available with either a 1 Hour or 2 Hour Boost. Replaces: Newlec NLQE7