There is no definite answer to the question: which pipes are better for heating, no. Previously, the best pipes for heating could safely be recognized as stainless steel pipes , as well as galvanized. Compared with ordinary metal pipes, their service life was much longer (about once every two) and ranged from fifty to one hundred years. There were also pipes made of duralumin, which are now almost never found. At that time there were no better pipes than galvanized pipes, since they were not afraid of corrosion. The disadvantage of these pipes was that it was impossible to weld them normally. And the seam has always been their weakest point. But even then they learned to get around this problem with the help of adapters and cutting special threads. Stainless steel pipes also suffered from this "disease", the weld points began to oxidize, but it was not difficult to cook them, and with proper treatment, rust could be avoided.
The fact is that even galvanized pipes and stainless steel pipes were considered stainless, but they were still subject to corrosion, only not as fast as the others. A huge plus was that their inner surface was very smooth, and because of this they rarely clogged. What could not be said about ordinary metal pipes and pipes made of duralumin. In all respects they were inferior to the first. Corrosion quickly took metal, they often clogged and their service life rarely exceeded twenty years, and duralumin pipes were fragile. In general, both of them demanded constant supervision, they had to be tinted almost every year. By the way, it should be noted that those who thought about which pipes are better for water supply should know that the same pipes are now used for both heating and water supply.
Nowadays, when new technologies and new materials have come to replace, thoughts about which pipes are better for heating and which ones to choose arise even more often. Below we consider pipes made of copper, metal and plastic. Metal-plastic are convenient in operation, and they can be easily bent in almost any direction, and according to the manufacturers, they can last about half a century. True, plumbers say no more than 7-10 years. Moreover, not all masters have learned to work with them properly, as a result of which connection technology is often disrupted.
For most of our compatriots, the best answer to the main "thermal" question: which pipes are better for heating, will be ordinary plastic pipes filled with fiberglass. They are very easy to assemble, you can even install it yourself, and in which case you can always replace any area. These pipes are not afraid of rust, they do not need to be painted, they do not need care, they can withstand frequent temperature changes, and, in the end, they are very durable. And most importantly, their prices are quite reasonable. These pipes have only one small drawback - they do not like to come into contact with cement and lime mortars that corrode them. True, this does not happen immediately, but over the course of 5-15 years. But this can easily be dealt with: it is enough just to wrap part of the pipe with polyethylene before plastering any area adjacent to the pipe. After drying, protruding polyethylene residues must be cut off. Copper pipes are also positive in every way. They can even be built into the walls of the house, but they also have a drawback, namely, the high cost of the pipes themselves and their assembly. Therefore, for those who can afford heating so expensive, there can be no other recommendations on the question of which pipes are better for heating.
Thus, you should first think about which pipes to choose for heating, then purchase them and find a good master. The latter, by the way, is a very important component of a successful repair.