The diagram shows how heat is lost and energy wasted in a house because of air getting into and out of the house.
The diagram gives information about air leaking out and leaking into the house which is causes heat is lost and energy wasted. Overall, it can be seen that, heat is lost into the house through several ways which occur by air getting into the house. And energy will be wasted through several vents in the some rooms.
Based on the diagram, in the house consist of Bathroom fan vent, Plumbing stack vent, attic hatch, recessed lights, chase, kitchen fan vent, electrical outlet, dryer vent, crawl space and outdoor faucet. The air enter into the house and several items such as light, kitchen will result heat but it will be lost through the several vent, which are Plumbing stack vent, kitchen fan vent, dryer vent. Air leaking out of the house and heat is lost.
Besides, energy will wasted in a house, because air leaking out of the house. This is happen in the dryer vent and crawl space. Air will leak out and into the house which take place below of soil.