Парилка уже горячая.

In Russian, the verb to be is usually omitted in the present tense.

So:

• Парилка уже горячая. = The steam room is already hot.

Russian does not normally say Парилка уже есть горячая here.

You only explicitly use forms of быть in the past or future, for example:

• Парилка была горячая. = The steam room was hot.
• Парилка будет горячая. = The steam room will be hot.

Парилка is a noun meaning a steam room, sauna room, or the hot room in a bathhouse/sauna.

It is an everyday, natural word in Russian, especially when talking about a баня or sauna setting.

Grammatically, it is:

• feminine
• singular
• here in the nominative case

That feminine gender is important because it affects the adjective горячая.

Because it must agree with парилка.

In Russian, adjectives change form to match the noun in:

• gender
• number
• case

Since парилка is:

• feminine
• singular
• nominative

the adjective also has to be:

• feminine
• singular
• nominative

So you get:

• masculine: горячий
• feminine: горячая
• neuter: горячее
• plural: горячие

That is why горячая is used here.

Уже means already.

So it adds the idea that the steam room has reached that state by now.

Compare:

• Парилка горячая. = The steam room is hot.
• Парилка уже горячая. = The steam room is already hot.

It often implies something like:

• the heating is finished
• the room is ready
• this happened sooner or by this point

No, Russian word order is fairly flexible, but the neutral, natural order here is:

• Парилка уже горячая.

Other orders are possible, but they change the emphasis:

• Уже парилка горячая. — stronger emphasis on already
• Парилка горячая уже. — can sound more conversational or contrastive

For a learner, Парилка уже горячая is the safest and most standard version.

Because it describes the noun парилка.

• горячая = adjective, agreeing with парилка
• горячо = adverb or predicative word, meaning it is hot

Compare:

• Парилка горячая. = The steam room is hot.
• В парилке горячо. = It is hot in the steam room.

These are both natural, but they are structured differently:

1. Парилка горячая focuses on the room as a thing.
2. В парилке горячо focuses on the environment or temperature inside it.

Both main words are in the nominative.

• парилка — nominative singular, because it is the subject
• горячая — nominative singular feminine, because it agrees with the subject in this kind of sentence

So this is a straightforward subject + predicate adjective structure.

Usually, горячая is the more natural choice here.

Why?

• горячий / горячая = hot, physically heated
• жаркий / жаркая often suggests very hot, sweltering, or oppressively hot

With rooms and weather, жаркий often has a stronger sense of heat. For a steam room that has heated up and is ready, горячая sounds very natural.

So:

• Парилка уже горячая. = normal and natural
• Парилка уже жаркая. = possible, but less neutral and more about intense heat

It usually describes a current state.

Парилка уже горячая means that the steam room has heated up and is now hot.

So even though Russian uses an adjective, the meaning is often very state-like in context.

It does not usually mean that the steam room is inherently or permanently hot as a defining characteristic. It means that right now, it has become hot.

The simplest negative is:

• Парилка не горячая. = The steam room is not hot.

If you want to say not hot yet, Russian very often uses:

• Парилка ещё не горячая. = The steam room isn’t hot yet.

This pairs nicely with уже:

• уже = already
• ещё не = not yet

So these two are a very useful contrast for learners.

It is a normal, everyday word, not especially formal.

It is very common in contexts involving:

• a баня
• a sauna
• a steam room

In everyday speech, it sounds natural. It is not slang, but it is also not overly technical.

So Парилка уже горячая sounds like a normal thing someone might say in real life.

Usually, the strongest stress goes on the new or important information.

Depending on context, that might be:

• Парилка уже горячая. — neutral, with focus on горячая
• Парилка уже горячая. — emphasis on уже, if the fact that it is already hot matters

For example:

• If someone is waiting for it to heat up, уже may get extra stress.
• If someone is asking whether it is warm enough, горячая may be the key word.

So the sentence is simple, but the intonation can shift the focus a little.