The English language
Goodle web page
to which Mark
referred is indeed puzzling, but the mystery is easily resolved if you know
a bit about Korean language and culture.
온들 [ondɯl] "warm stone" is the traditional Korean heating
system, a kind of hypocaust. In its original form, a wood fire was built in a fireplace like
the one shown in the photograph and used to heat a wide stone
called a 구들장 [gudɯlʤaŋ]
under the floor of each room. One virtue of this system is that the
stone has a large heat capacity and so stores up heat from the fire
and releases it gradually, making the temperature of the room insensitive
to the state of the fire. A variant uses a number of smaller stones with a
layer of mud over them. A still later version
uses water in a network of pipes embedded in concrete,
a system which I believe was a favorite of the American architect Eichler.
This company manufactures what they promote as a
new, improved, pre-fabricated heating system derived from the traditional
온들. The term goodle is presumably an anglicization of
구들 [gudɯl], a synonym for 온들.
The company very likely chose this term in an attempt to play on the
English word good as well.