En este fogón de la derecha el cazo se calienta más rápido que en el otro.

In this sentence, fogón means a burner or ring on a stove/hob.

In Spain, fogón can refer to:

• a stove burner
• a cooking fire
• sometimes the stove area itself, depending on context

Here, because the sentence compares one place where a pot heats faster than another, burner is the most natural interpretation.

De la derecha means the one on the right.

So:

• el fogón de la derecha = the burner on the right
• literally: the burner of the right-hand side

Spanish often uses this structure to identify something by location:

• el de la izquierda = the one on the left
• la puerta de la derecha = the door on the right
• el cajón de arriba = the top drawer

You might hear el fogón derecho in some contexts, but el fogón de la derecha is much more natural here.

Spanish normally uses en with burners, stoves, and surfaces where something is being heated or cooked.

So:

• en este fogón = on this burner
• en el fuego = on the fire
• en la vitrocerámica = on the ceramic hob

Even though English often says on, Spanish frequently uses en in these cases.

So en este fogón is the normal choice.

Cazo is a type of cooking pot, usually a small saucepan or small cooking pot with a handle.

It is not exactly the same as:

• olla = pot
• sartén = frying pan
• cazuela = casserole dish / earthenware dish / cooking pot, depending on context

For this sentence, saucepan is usually the best English match.

Here, se calienta means heats up or gets heated.

The se is used because Spanish often expresses this kind of change of state with a pronominal verb:

• calentar = to heat something
  
  • Caliento el cazo = I heat the saucepan
• calentarse = to heat up / become hot
  
  • El cazo se calienta = The saucepan heats up / gets hot

So this sentence is focusing on what happens to the saucepan itself, not directly on who heats it.

In this sentence, it is best understood as a pronominal/intransitive use, not a true reflexive and not really a passive.

• Reflexive would mean the saucepan is heating itself, which is not the intended idea.
• Passive would be closer to is heated, but that is not quite the feel here either.

El cazo se calienta most naturally means:

• The saucepan heats up
• The saucepan gets hot

This is very common in Spanish with verbs describing changes:

• La puerta se abre = The door opens
• El agua se enfría = The water cools down
• La sopa se calienta = The soup heats up

In Spanish, adjectives like rápido are often used adverbially, especially in everyday speech.

So both are possible in many contexts:

• más rápido = more quickly / faster
• más rápidamente = more quickly

But más rápido is much more common and natural in ordinary speech.

Here:

• se calienta más rápido = heats up faster

This is very normal Spanish.

Because Spanish, like English, often leaves out words that are already clear from context.

Here, en el otro means:

• on the other one
• more fully: en el otro fogón

The noun fogón is omitted because it is obvious.

This kind of omission is very common:

• Quiero este, no el otro = I want this one, not the other one
• La taza grande está limpia; la pequeña no = The big cup is clean; the small one isn’t

So en el otro is perfectly natural.

Spanish word order is more flexible than English word order.

The sentence begins with En este fogón de la derecha because the speaker wants to highlight the location first:

• On this burner on the right, the saucepan heats up faster than on the other one.

If you changed the order, it would still be grammatical:

• El cazo se calienta más rápido en este fogón de la derecha que en el otro.

Both are correct, but the original version gives extra emphasis to the burner being compared.

Spanish distinguishes demonstratives by distance or perspective:

• este = this, near the speaker
• ese = that, near the listener or not especially near the speaker
• aquel = that over there, farther away

So este fogón means this burner, probably one the speaker is indicating as nearby.

If the context changed, ese fogón might also be possible, but it would mean that burner rather than this burner.

Not in exactly the same way.

• el fogón de la derecha = the burner on the right / the right-hand burner
• el fogón a la derecha sounds more like the burner located to the right, and it is less natural here as a label for one item in a set

When identifying one of two or more objects by position, Spanish very often uses:

• de la derecha
• de la izquierda
• de arriba
• de abajo

So in this sentence, de la derecha is the normal choice.

Usually, no.

Se calienta here is not the same as the English progressive is heating. It means:

• heats up
• gets hot
• sometimes is heating up, depending on context

So the best translation in this sentence is something like:

• The saucepan heats up faster on this burner on the right than on the other one.

If you say is heating, that sounds incomplete in English unless you mean an ongoing action in a very specific moment.

Because Spanish uses más... que... to make comparisons:

• más rápido que = faster than
• más grande que = bigger than
• más caro que = more expensive than

So:

• se calienta más rápido que en el otro = it heats up faster than on the other one

This is the standard comparative structure in Spanish.