Across
- 3. Space heaters that are freestanding or attached to a wall and work with electricity. They are...
- 6. What for in solar thermal system solar energy is used for?
- 9. Linked collection of photovoltaic panels - solar...
- 10. The exchange of indoor air with outdoor air.
- 12. Keeping something for future use.
- 13. It's a war vehicle used in wars or storage for liquids.
- 14. Removes heat from outdoor air, ground, surface water or the earth. Electric heat....
- 15. What is used in spot ventilation?
Down
- 1. Where does solar panels are installed?
- 2. Something that carries away used water and wastes.
- 4. A conventional ... can be used to make the water hotter.
- 5. InstalIed in floors, ceilings or walls - ... ceiling.
- 7. What is needed to generate energy from the sun?
- 8. The presence in or introduction into the environment of a substance which has harmful or poisonous effects.
- 11. Something that is often seen.