A fűtés jól működik, mintha új lenne.

A fűtés means the heating or the heating system.

• a = the (definite article)
• fűtés = heating

The noun fűtés comes from the verb fűt (to heat), and the -és ending turns it into a noun, much like English -ing or -tion in some contexts.

Hungarian has two forms of the:

• a
• az

Which one you use depends on the sound that follows:

• a before a consonant sound
• az before a vowel sound

Since fűtés starts with f, you say a fűtés.

jól means well.

• jó = good (adjective)
• jól = well (adverb)

Since it describes how the heating functions, Hungarian uses the adverb:

• A fűtés jól működik. = The heating works well.

English does the same:

• good heating = adjective
• works well = adverb

működik means works, functions, or operates.

It is the 3rd person singular present form of működni (to function / to work).

So:

• A fűtés működik. = The heating works / is working.

In this sentence, jól működik means works well or functions well.

Very literal:

• A fűtés = the heating
• jól = well
• működik = works / functions

So the structure is basically the same as English:

The heating works well.

mintha means as if or as though.

It introduces a comparison that is not presented as a fact, but as an impression or appearance.

So:

• mintha új lenne = as if it were new

This is a very common Hungarian structure.

Because after mintha, Hungarian normally uses the conditional form, not the simple present.

• van = is
• lenne = would be / were

So:

• mintha új van ❌
• mintha új lenne ✅

This matches English quite well, since English also often says:

• as if it were new

rather than

• as if it is new

lenne is the 3rd person singular conditional form of the verb lenni (to be).

So here it means something like:

• it would be
• or, in natural English after as if, it were

In this sentence, the subject it is understood from the context: it refers back to the heating.

Because Hungarian often leaves out subject pronouns when the verb already shows the person and number, or when the subject is clear from context.

Here, lenne is 3rd person singular, and it is obvious that it refers to the heating.

So Hungarian says:

• mintha új lenne

literally something like:

• as if new were

but naturally in English:

• as if it were new

Because új is a predicate adjective here: it describes what the subject would be.

In English:

• it is new
• it were new

In Hungarian:

• új = new

No extra ending is needed in this kind of structure.

So:

• új lenne = would be new / were new

Not necessarily. It usually suggests appearance, not fact.

A fűtés jól működik, mintha új lenne. means:

• The heating works well, as if it were new.

This usually implies that it may not actually be new, but it functions so well that it seems new.

The comma separates the main clause from the mintha clause.

• A fűtés jól működik = main statement
• mintha új lenne = comparison clause

This is standard punctuation in Hungarian.

Yes. Hungarian word order is flexible, and changing it can change emphasis.

For example:

• A fűtés jól működik, mintha új lenne.
• Jól működik a fűtés, mintha új lenne.

Both are possible. The version with A fűtés first is neutral and natural. The version with Jól működik first puts more focus on works well.

A rough pronunciation guide:

• fűtés ≈ fyoo-tays, but with Hungarian ű, which is a long front rounded vowel not found in normal English
• működik ≈ myoo-kö-dik, again with ű, and ö like the vowel in German schön or French peu

A few useful points:

• Hungarian stress is always on the first syllable
• ű and ő are long vowels
• ö and ü are rounded front vowels, which can be tricky for English speakers

So:

• FŰ-tés
• MŰ-kö-dik

Sometimes learners notice volna and wonder about it. In many contexts, lenne and volna are related conditional forms of to be, but in a sentence like this, lenne is the normal and natural choice:

• mintha új lenne = natural, standard

Using volna here would sound unusual to most learners and is not what you should aim for first.

So the safe version to learn is:

• mintha új lenne

The most natural translation is:

The heating works well, as if it were new.

A more literal breakdown is:

• A fűtés = the heating
• jól működik = works well
• mintha új lenne = as if it were new