A low E film is an extremely thin layer of metal oxides, in the order of nanometers, which, if it is applied on the glass, provides a capacity of reinforced thermal insulation.
The solar control film, easily applicable on window glasses, has the property of reflecting part of the solar radiation received, decreasing the amount of energy that passes through the glass.
Silver foil placed in the back of a radiator will reflect heat back into a room rather than letting it uselessly escape through the walls of a house.
Rooms cleaned at regular intervals or painted in such a way that they have a high reflection coefficient over a long period are the basis for maintaining the high efficiency of the supplied light.
When leaving the room, even if it is for a short time, the air conditioning should be turned off. If possible, turn off the air conditioning 20 minutes before leaving, the air will stay cool during this time and there will be sufficient thermal comfort.
Air filters are used to reduce the amount of dust that reaches the wet coils, keeping the HVAC system clean.
Each degree the thermostat is raised above 21° (recommended set point for winter) implies an unnecessary waste of energy of up to 6-8%. While in summer, each degree below 25° (recommended set point for summer) implies an overconsumption of around 6-8%.
A correct thermal insulation of HVAC distribution ducts and pipes (including corners) reduces energy losses in distribution and improves the performance of the systems since the equipment works with fluids at temperatures close to the design temperature.
Verify the correct operation of timers in terms of control system depending on the level of occupation of the building.
Free cooling consists in using the outside air cooling capacity to renew and cool the inside air of a room, reducing the energy consumption of the cooling equipment. As consequence, the system only switches on extraction and air conditioning fans, avoiding starting up the compressor of the cooling equipment.