### device | heater:

Gas heater
* Some gas heaters have the thermostat protected behind a panel that can be rotated open.
* are cheaper to run and produce lower greenhouse gas emissions than electric heaters
* benefit from the location of their heat source below the water tank.
* give off a lot of heat.
* have pilot light.

Heating pad
* are heaters
  - located in suitcases
* can cause severe burns and injury when misused
  - help to relax painful muscle spasms

Masonry heater
* are ideal in cold climates where there demand for steady heat.
* store heat.

Portable heater
* Most portable heaters contain oxygen depletion sensors
  - have thermostats
* can also pose a fire hazard.
* cause many fires.
* use oxygen and produce potentially toxic gases.

Radiant heater
* Some radiant heaters have electric fans to increase the flow of warm air.
* warm the floor and quickly modulate room temperature.

Space heater
* Most space heaters can cause serious burns, too.
  - the primary means of heating in many Texas homes
* can burn a dog's skin if they are placed too close.
* confuse a building's heating controls, causing other areas to lose heating.
* have hot parts that can cause sparking and start a fire.
* produce temperatures that can ignite ordinary home furnishings.

### device | heater | space heater:

Electric heater
* Use a ground-fault circuit interrupter with electric heaters in a bathroom.
* are electrical devices
  - more efficient than gas units, but take longer to heat water
  - notorious for heating there cords and plugs
  - space heaters
  - very high users of electricity

### device | heater | space heater | electric heater:

Heat lamp
* Most heat lamps emit light.
* Most heat lamps provide heat
* Some heat lamps cause fire.
* are a convenient source of radiant heat for brooding small flocks
  - capable of causing a barn fire if left unattended
  - the best example of radiant heaters
* have a bulb that gives off mostly infrared rays and very little visible light.
* help avoid chills.
* is an electric heater
* work by radiating the bird with infra-red rays.

### device | heater:

Water heater
* Most water heaters are steel
  - consume energy
* Most water heaters have a life span of ten to fifteen years
  - some insulation built into the tank
* Some water heaters contain plastic.
* are bulky and heavy
  - household appliances
* are located in basements
  - cellars
  - garages
  - steam-driven tube bundle type heat exchangers
  - tanks
* can alter the character of tap water.
* have a magnesium tube called an anode inside the tank to prevent rust
  - the main burner and pilot flame
* radiate heat which can be easily contained by insulation.

Holder
* are owners
  - solid objects
* have options
  - question concern use
* includes sections.

### device | holder:

Bondholder
* are creditors
  - holders
  - investors
* is an investor

Candelabra
* are located in tables.
* have working lights.

Candlestick
* Some candlesticks use in lamps.
* are holders
* can show whether the buyer or seller has control of the market.

### device | holder:

Landowner
* Some landowners seek to protect their forest forever by prohibiting logging
  - use dogs to keep geese out of hay and grain crops
* are holders.
* can increase the diversity of wildlife on their land by actively managing edges
  - restore, enhance or protect habitat beneficial to birds and wildlife
* have an important role in protecting wetlands.
* often manage farms and ranches for crops, timber, livestock, and wildlife.
* recognize the role hunters play in managing wildlife populations.