For FL, take the biggest capacity you can afford. Difference in water/electricity usage for a load of the same size, across FL of different capacity is negligible. Modern FL has variable water usage, according to load size. You can wash a 2kg load, in a 10kg FL just fine without wasting water/electricity. Ok.. maybe electricity because you should go optimal all the time

From my experience, I own 8kg FL...
King size bedsheet + pillow cases + bolster case in one load. Comforter sheet in another load. It's definitely too small for the actual comforter itself. 10kg should be big enough for that.

Good thing about hanging in the sun is the UV ray kills bacteria. Clothes tend to smell fresher, for longer. However, the very same UV ray also shortens the life of your clothes.

I've seen indoor hangers with UV light attachment. Not sure how effective those are.

I wash my curtains at self service laundries. They have 13kg front loaders and dryers.

Panasonic updates their front loader models almost every year! I wonder if they really do change anything or just cosmetic changes

For 2.5k, you can try looking at Hitachi. Some lower end Electrolux is also around that price range.

A FL is almost always more gentle than a TL. Your clothes will last longer.

If you are a heavy user, once a month pour a cup of bleach into the dispenser, then run the washing machine on its hottest cycle (90C).

Couldn't be repaired?

Japanese love their top loaders. Front loaders are more an European thing.

You should always follow the laundry symbols on the label.

http://www.textileaffairs.com/c-common.htm

Don't use Dynamo for FL, way too much suds.
TOP is pretty good too, they have for both FL and TL.