Le réchaud ne fonctionne pas bien quand il y a trop de vent, mais le café chauffe quand même.

In French, nouns normally need an article. Réchaud and café are both masculine singular nouns, so they take le.

• le réchaud = the stove
• le café = the coffee

French uses articles more often than English does, so even where English might sometimes omit the, French often keeps it.

Ne ... pas is the basic way to make a sentence negative in French.

Here it surrounds the verb:

• fonctionne = works / functions
• ne fonctionne pas = does not work

So:

• Le réchaud fonctionne. = The stove works.
• Le réchaud ne fonctionne pas. = The stove does not work.

In everyday spoken French, the ne is often dropped in conversation, but in standard written French it is normally kept.

Bien means well here, so:

• ne fonctionne pas bien = doesn’t work well

That is softer and more specific than simply saying ne fonctionne pas, which usually means doesn’t work at all.

Compare:

• Le réchaud ne fonctionne pas. = The stove doesn’t work.
• Le réchaud ne fonctionne pas bien. = The stove doesn’t work well.

Quand means when.

In this sentence, it introduces the condition or situation:

• quand il y a trop de vent = when there is too much wind

So the stove does not work well when it is very windy.

Il y a is the standard French expression for there is or there are.

• il y a du vent = there is wind / it is windy
• il y a trop de vent = there is too much wind

Even though il literally looks like he/it, the whole expression il y a functions as a fixed phrase meaning there is/there are.

After expressions of quantity such as trop de, French uses de alone, not du/de la/des.

So:

• trop de vent = too much wind
• beaucoup de vent = a lot of wind
• un peu de vent = a little wind

This is a very common pattern in French.

They are two different verbs:

• fonctionner = to function, to work
• chauffer = to heat, to warm up

So:

• Le réchaud ne fonctionne pas bien = The stove does not work well
• le café chauffe = the coffee is heating up / gets hot

Here chauffe describes what the coffee is doing, not whether the stove is mechanically functioning.

Le café chauffe uses the active verb chauffer in an intransitive sense, meaning the coffee is heating up.

This is very natural in French. It focuses on the result happening to the coffee.

• Le café chauffe. = The coffee is heating up.
• Le café est chauffé. = The coffee is heated / has been heated.

The second version sounds more passive and less natural in this context.

Quand même means all the same, მაინც / anyway, even so, nevertheless, depending on context. Here the best meaning is:

• mais le café chauffe quand même = but the coffee heats up anyway / even so

It shows contrast: the stove does not work well in strong wind, but despite that, the coffee still heats up.

That placement is very natural in French. Putting quand même at the end gives emphasis to the idea of despite that or still.

Compare:

• Le café chauffe quand même. = The coffee heats up anyway.
• Quand même, le café chauffe. = Anyway / even so, the coffee heats up.

Both are possible, but the sentence-final position is very common.

Yes. The verbs are:

• fonctionne from fonctionner
• a from avoir in il y a
• chauffe from chauffer

They are all in the present tense. French often uses the present tense in general statements, just like English does:

• The stove doesn’t work well when there is too much wind, but the coffee still heats up.

There are two different il forms here:

1. In il y a, il is part of a fixed expression meaning there is/there are.
2. There is no separate pronoun referring back to réchaud in the second clause; instead, the sentence simply says le café chauffe.

So the il in this sentence does not mean the stove. It is only part of il y a.

The sentence has two main parts joined by mais:

1. Le réchaud ne fonctionne pas bien quand il y a trop de vent

   • The stove does not work well when there is too much wind

2. mais le café chauffe quand même

   • but the coffee heats up anyway

So the pattern is:

• statement 1
• mais = but
• contrasting statement 2

Here vent is treated as an uncountable noun, like wind in English.

So French says:

• du vent = some wind
• trop de vent = too much wind

You would not normally count it here as separate units.