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"Hornos" is a form of "horno", a noun which is often translated as "oven". "Calderas" is a form of "caldera", a noun which is often translated as "boiler". Learn more about the difference between "hornos" and "calderas" below.
el horno(
ohr
-
noh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
a. oven
Pon la pizza en el horno a 425 grados durante 10 minutos.Put the pizza in the oven at 425 degrees for 10 minutes.
a. furnace
El horno de fundición de la fábrica puede producir hasta 300 toneladas de acero en 45 minutos.The factory's smelting furnace can produce up to 300 tons of steel in 45 minutes.
b. kiln
Vamos a usar el horno para cocer las ollas de arcilla que esculpimos.We're going to use the kiln to fire the clay pots that we sculpted.
la caldera(
kahl
-
deh
-
rah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. boiler
La casa es tan grande que la caldera no es suficiente para calentarla.The house is so big that the boiler can't heat the whole place.
b. hot-water heater
La caldera dejó de funcionar. ¿Sabes cómo arreglarla?The hot-water heater stopped working. Do you know how to fix it?
4. (teakettle) (South America)
Regionalism used in South America: Argentina, Bolivia, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, and Venezuela
