/, Contextual, DHW, DHW (measure), Long term, Operators, Owners, Physical environmental, Psychological/2.3.1 Substitution of instant system for accumulation system

2.3.1 Substitution of instant system for accumulation system

2.3.1 Substitution of instant system for accumulation system

Description

The instant systems heat water as demanded, so a lot of energy and water are wasted until water reaches the energy consumption end point at the required temperature and besides the continuous on and off significantly increase energy consumption. Its replacement by a more efficient accumulation system is recommended. The latter systems  heat the water and a water heater tank that stores water and keep it warm. In this way the boiler operates more continuously and efficiently and continuous start-ups and stops of the system are avoided.

Benefits

  • Savings of up to 50% of the energy that was used to heat the water can be obtained

Limitations

  • The energy-saving potential depends on the type of building, being the highest in residential buildings

Economic assessment

Initial investment: medium, although it depends on each particular situation, since the cost of the equipment varies depending on its capacity.

References and best practices

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CHARACTERIZATION

Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices


Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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2018-01-24T08:33:00+00:00