TeachEngineering
Teach Engineering: Swamp Cooler
Using a household fan, cardboard box and paper towels, student teams design and build an evaporative cooler (swamp cooler). They learn about the process that cools water during the evaporation of water. They make calculations to...
Other
Warmair.com: Programmable Thermostats
The virtues of programmable thermostats are discussed. Includes a section titled "Thermostat Set-back Calculation;" the visitor can enter the normal and an adjusted thermostat setting and an outdoor temperature and view the percent...
MadSci Network
Msn: How Does an Air Conditioner or Refrigerator Work?
From the Mad Scientist Network. Using a question and answer format, this page explains the answer to the question "How does An air conditioner or refrigerator work?" The scientific principles which underly their operation and the process...
Other
Warm Air: Heat Loss
An excellent page describing the variables which effect the heat loss through homes. The causes and sources of such heat loss are identified and explained. Lays the groundwork for understanding the importance of and need for home heating...
Other
Warmair.com: Heat Gain
An excellent page describing the variables lead to rising temperatures in the home. The causes and sources of such heat gain are identified and explained. Lays the groundwork for understanding the importance of and need for home air...
Other
Warm Air: Gas Furnace
Gas furnaces are described. The major parts of such a furnace and their respective role is discussed. Maintenance and troubleshooting tips are provided.
Other
Warm Air: Central Air Conditioning
The operation of conventional air conditioners are described. Their parts and the refrigerant/heat exchange cycle is discussed. The use of alternative geothermal systems are explained.
MadSci Network
How Come When You Open a Window the Door Is Pulled In?
From the Mad Scientist Network. Using a question and answer format, this page explains the answer to the question "How come when you open a window the door is pulled in?" This intriguing everyday phenomenon is explained in terms of air...
Other
Warm Air: Electric Furnace
Site describes Electric furnaces. The major parts of electric furnaces and their respective roles are discussed, and maintenance and troubleshooting tips are provided.
Other
Warm Air: Solar Heating
Solar heating systems and their operation are described, and their benefits, both economic and environmental are discussed in detail.