### energy | heat:

Electric heat
* boils water and the resulting steam, under pressure, does mechanical work.
* is normally the highest user of electricity in the home.
* takes longer to heat and in most places is the most expensive fuel source.

### energy | heat:

Excess heat
* Most excess heat is produced by metabolism.
* Some excess heat causes burns.
* can also dry out the stool and cause constipation
  - be harmful to the pregnancy and can cause complications
* can cause fuel to explode or flame up
  - sparks
  - damage electronic components
  - destroy some vitamins
* flowing from the core causes the outer layers to gain energy.
* is disposed of in the atmosphere or in some source of running water such as a river
  - drawn from the home, expelled to the loop, and absorbed by the Earth
  - which can damage heat exchangers
  - released when sweat glands produce perspiration, or sweat
  - shed to the external environment

### energy | heat:

Excessive heat
* Most excessive heat kills bacteria
  - symbiotic bacteria
* breaks down the body's natural cooling system.
* can affect pollination in most flowering crops, resulting in reduced yields
  - also damage recording media, and cause immediate failure of computer electronics
  - be another cause of radiator failure
* can cause crazing and seal damage
  - multiple sclerosis to flare up
  - some pesticides to volatilize and drift away from the storage site
  - contribute to physical and mental changes
  - cut lamp life in half
  - damage the semiconductor material
  - lead to deeper sleep, preventing a baby's arousal
  - melt glues and warp plastic parts
  - turn people off on gardening and cause the plants to wilt
* causes power lines to sag and short out.
* is most detrimental to batteries
  - one of the most common reasons for electronic equipment failure
  - responsible for more electronic failures than any other single cause
  - usually a product of a poorly ventilated attic
* leads to swirls of fat bloom.
* scorches the yin fluids and leads to dryness.
* tends to damage the electrodes.

Heat edema
* causes ankles and feet to swell from heat exposure.
* refers to the swelling of the hands and feet associated with heat exposure.

Heat of formation
* comes into picture when the basic compounds or molecules are forming.
* is heat

Heat recovery
* distilling units use diesel engine jacket water instead of steam as the heat source.
* is used in the ventilation air streams.

Heat syncope
* is related to heat exposure that produces orthostatic hypotension
  - the least serious of heat-induced disorders
* occurs when a person becomes dizzy or faints after exposure to high temperatures.
* sudden dizziness experienced after exercising in the heat.

High heat
* Most high heat kills bacteria.
* Some high heat kills larvae.
* can kill.
* causes the protein in eggs to become tough and rubbery.
* is important to sear the fish instantly and keep it firm
  - one of the elements that breaks down an oil over time
* major cause of bearing failure.
* makes natural cheese tough and stringy.
* oxidizes oil and thickens it.
* shortens the life span
  - oil life dramatically
* toughens and shrinks protein and results in excessive moisture loss.

Infrared heat
* bears most of the same properties as visible light.
* can greatly benefit the sore, damaged or tired muscles of an athlete.
* is an ideal, economical source of warmth for brooding game birds
  - warmth for brooding pigs
  - warmth for brooding poultry