Central heating system with open fireplace - has overheating safety control with additional parallel stand-by water heating system

摘要

The safety unit is esp. for use with open fireplaces, supplying a central heating system. The heating system has a parallel stand-by water heating system, with heat exchanger coils. During high ambient temperatures, the central heating system is switched off, and one or more stand-by water tanks or similar consumers are switched-on to act as return controls. When a max. water temperature has been reached, a heat sensor element switches on the control heating system and when this has heated up, a continuous heat exchanger is actuated. This produces stand-by water for immediate use, or feeds it into an additional storage tank.