Heating support

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Many heating systems are equipped with heating support in order to obtain heat from an alternative energy source. A conventional heating system is often supplemented with one or more additional heating sources, possibly connected to one another via a stratified storage tank or combination storage tank . This can relieve a boiler, for example an oil or gas heater.

General

For example, gas-powered heating systems use solar collectors to use heat from solar radiation to reduce gas consumption, or a heating mill to use wind energy.

A wood-burning stove can also serve as a heating support, either for direct heating of the room air or at the same time for heating the water from heating systems. A heat pump used as a heater , on the other hand, can use an electric heating insert to support the heating in order to guarantee that the heating water is heated even if the heat pump fails, for example because of a defect or because the temperature of the heat-supplying medium is too low.

Heating support from the combination of renewable energies

Today's state of the art realizes heating support generated from renewable energies . If regenerative energies are used for this, energy from fossil fuels can be saved. This reduces the primary energy consumption from raw material stocks and at the same time makes a contribution to the energy transition.

A conventional heating system can be supplemented with a thermal solar system . For example, they are available either with or without heating support. Both variants are used for heating purposes, but not both for room heating, but only for domestic water heating.

Solar thermal energy without heating support

In a solar thermal system without so-called heating support, only warm drinking water is prepared. In summer, a conventional heating system is almost exclusively used to heat drinking water, but a simple solar thermal system can provide around 50 to 60 percent of the drinking water heating requirement for a single-family house over the course of the year, which corresponds to a saving of around 10 percent of the total heating requirement. Solar systems with pure drinking water heating were the common design in the past, but systems with simultaneous heating support are now being installed significantly more often.

Solar thermal with heating support

In systems with heating support, in addition to heating the drinking water, heating is also generated to heat the living area. The heating water is heated or at least preheated. With these systems, as a rule, significantly higher degrees of solar coverage of the total heating requirement are achieved and thus the solar energy is better used. In the case of heating support, the area of ​​solar collectors must be about twice as large and the installed system must be more extensive. This means that in the transitional seasons, i.e. in spring and autumn, an additional, larger proportion of the heating requirement can be generated by solar energy, and the heating period is effectively shortened. Depending on the general conditions, a single-family house with solar heating support can save around 20 percent of the previous fuel requirement or even more.

literature

  • U. Kluge, N. Kuhlmann: Tiled stoves and thermal solar systems: Heating support and water heating with tiled stove and fireplace heating inserts as well as solar collectors , Die Bibliothek der Technik 164, Verlag: Moderne Industrie, Landsberg / Lech 1998, 70 pp.
  • Chapter 9.11.3 Solar heat for heating support. In: Fachkunde Installation- und Heizstechnik , Europa-Lehrmittel, 5th edition from 2014, ISBN 978-3-8085-1527-3 , pp. 511-512
  • T. Delzer et al. a .: Solar heat for domestic use , 2nd completely revised edition, Solarpraxis, Berlin 2009, ISBN 978-3-934595-90-3 :
    • Chapter 3.2.2 Storage tank for heating support , pp. 63–67
    • Chapter 4.2 Solar systems for DHW heating, pp. 79–92
    • Chapter 4.3 Solar systems for heating support , pp. 93–99
  • K. Oberzig: Solar heat - heating with the sun , Stiftung Warentest, 2nd updated edition from 2014, ISBN 978-3-86851-407-0 :
    • Solar heating system for hot water preparation , pp. 76–87
    • Combined systems for domestic hot water and space heating , pp. 88–97
    • Common concepts for combination systems , pp. 97–101
  • T. Schabbach , P. Leibbrandt: Solar thermal: How the sun becomes heat , Springer-Vieweg, Berlin / Heidelberg 2014, ISBN 978-3-642-53906-0 :
    • Chapter 4.2 DHW heating, pp. 67–72
    • Chapter 4.3 Heating support , pp. 72–75
  • Solar systems: Manual of thermal solar energy use , 11th edition from 2011, Staufen near Freiburg, ISBN 978-3-936896-40-4 :
    • Chapter: 3.1 Heat storage , pp. 74–90
    • Chapter: 4.3 Solar systems for DHW heating, pp. 130–137
    • Chapter: 4.4 Solar systems for DHW heating and heating , pp. 138–143
  • Energy advice for residential buildings , Hamburg 2010, ISBN 978-3-481-02635-6 :
    • Chapter: 4.2.3.1 Thermal solar systems for hot water preparation , pp. 199–202
    • Chapter: 4.2.3.2 Thermal solar systems for heating support , pp. 202–205

Web links

Individual evidence

  1. ↑ T. Schabbach , P. Leibbrandt: Solarthermie: How the sun becomes heat , Springer-Vieweg, Berlin / Heidelberg 2014, ISBN 978-3-642-53906-0 , p. 67
  2. ↑ a b T. Delzer u. a .: Solar heat for domestic use , 2nd completely revised edition, Berlin 2009, p. 93
  3. ↑ Solar heating support or just solar hot water? ( Memento of the original from June 7, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed June 29, 2017 @1@ 2Template: Webachiv / IABot / www.citrinsolar.de