It is your duty and a matter of basic decency to provide your animal with warm shelter, food, access to water and care.
If your animal stays outdoors, provide it with warm shelter. The shelter should protect it from wind and cold. If a dog stays in a kennel, it must be watertight. You can insulate it with, for example, polystyrene or OSB board. Place the kennel on a pallet to isolate it from the ground. Be sure to put straw inside; it works better than blankets or other materials, which are useless when soaked.
A dog should have constant access to water. If temperatures are below freezing and the water freezes, it must be replaced more often. You can add a little oil to the water and serve it warm (not hot!)—then it will freeze more slowly. Also remember to provide the animal with warm food.
Take off the chain! Movement helps the animal keep warm. It also prevents joint diseases, which are very painful. Provide your animal with a safe place to live and move freely.
Animals have rights!
Failing to provide suitable shelter protecting an animal from weather conditions and constant access to drinking water is an offence. This act is punishable by detention or a fine (Article 37(1) in conjunction with Article 9(1) of the Animal Protection Act).
If you permanently keep an animal in conditions that endanger its health or even its life, or cause suffering, this constitutes the crime of animal abuse. This act is punishable by imprisonment for up to 3 years (Article 35(1a) in conjunction with Article 6(2), points 17 and 19, of the Animal Protection Act).
It is prohibited to keep domestic animals tethered continuously for more than 12 hours per day, or in a way that causes them bodily injury or suffering or fails to provide the necessary opportunity for movement. The tether may not be shorter than 3 metres. Violation of this provision constitutes an offence (Article 37(1) of the Animal Protection Act).
If you see that an animal is being harmed, take action. There are many ways to help an animal. Try talking to your neighbour, share the video further, and if that does not help, notify a local organisation or the Police.