Appropriate insulation is a basic prerequisite for the protection of a building from cold or heat.
In order to reduce thermal losses one can:
Before you venture to buy an air conditioner you would do well to investigate alternative ways of cooling. Air conditioners consume large quantities of electricity especially at the hours of the system maximum demand and their operation will be costly. Over and above they pollute and heat up the environment.
The low energy consuming lamps may cost more than the ordinary lamps, but their lifespan is eight times longer and they consume five times less electricity
Clean regularly the lighting fittings and the lamps
Refrigerator - Freezer