Tips on hot water

Tips on heat utilization

Icelandic homes use annually on average 4-5 tons of hot water per m2. About 90% of its use are due to central heating and we use the rest for other things, such as taking a bath or shower, clean the home and do the dishes. To reduce hot water and energy use, the focus should be on looking at ways we use hot water for heating in the best possible way.

  • Have professionals adjust the heating system.
  • Use thermostatic radiator valves (TRV) to level the heat.
  • Check the density and insulation of windows and doors.
  • Close windows when it’s cold outside.

House heating

When it starts to get cold, it is necessary to review the heating system of the house and balance it so that it meets its primary function i.e. to create a comfortable indoor temperature, keep costs to a minimum and that the utilization of hot water is at its peak.

Balancing involves that the maximum flow to each radiator is set. Flow to the radiators is configured with internal adjustment of the valve. Older systems may need to be updated with this equipment to be able to configure the system successfully. We recommend that you let professionals set the system. It is easy to make radiators ineffective by covering it with furniture, window sills and curtains. If the radiators are blocked and the heat can’t get into the room, the valve automatically shuts down since it senses there is enough heat in the room.

Usually there is no need to change the thermostat setting on thermostatic radiator valves if it is to maintain a constant room temperature. After you find a comfortable room temperature, it is good to put a note on the mode that suits the room concerned.

  • Heat sensor should not be closed off with furniture or curtains
  • Excessive window sills reduce heat flow of the room and may cause the valve to stop heating the room
  • Let a professional adjust the heating system
  • Go over the system regularly and clean filters and control units