If your crawlspace isn't properly insulated there is a great risk of energy loss.
From the ocregister.com
There was even a cellar and a small crawlspace above the second floor for storage.
From the post-gazette.com
A water heater in the crawlspace of a home caught fire, resulting in $7,000 damage.
From the thestate.com
About two weeks ago, the new heater coil ruptured, flooding my nice, dry crawlspace.
From the sacbee.com
Damp earth in the crawlspace indicates either poor ventilation or a drainage problem.
From the sfgate.com
Furthermore, they are refusing to do anything about my wet crawlspace.
From the sacbee.com
Haynes said officers noticed several copper pipes had been cut from inside the crawlspace.
From the upi.com
He moves into the crawlspace of Emanuel's rented house in Chicago, and later into an igloo.
From the theatlantic.com
At the far end of that crawlspace is a duplicate of Coraline's home.
From the timesunion.com
More examples
Low space beneath a floor of a building; gives workers access to wiring or plumbing
In the early 1990s guitarist and vocalist, Russell Smith, met drummer, Chris Webber, the two sharing a musical background in Grunge-rock. They were then joined by bassist and vocalist Daniel Bowles, who had experience in a techno style band in the UK. ...
Crawlspace is a 1986 horror/thriller film starring Klaus Kinski as Karl Guenther, the crazed son of a Nazi doctor, who is obsessed with trapping young women and then slowly torturing them to death. ...
Alternative spelling of crawl space
The area within the confines of the foundation and between the ground and the underside of the lowest floor structural component.
A shallow space below a building, normally enclosed by the foundation walls.
The interior area between the 1st floor subfloor and the ground surrounded by a poured or block foundation. Most crawlspaces should be at least 18 inches high.
The space under a house often used to distribute mechanical/ electrical and plumbing systems. It is usually unconditioned.
The open space beneath the first floor in a home without a basement