Contents:
- Differences in principle of operation
- No frost or drip system?
- And which is better to choose a freezer?
- What about defrosting?
We are, of course, grateful for the technical progress that he saved us from having to defrost the refrigerator every month manually, spending a good part of the weekend on it. But is it so vital to overpay for No frost or the drip system will cope with the task?
Differences in the principle of operation of
If you do not already know what No frost is, you can understand the principle of this system by translating it. From English, this phrase can be translated as "no frost", which, in fact, is the main task of the automatic defrosting system. However, it can not be said that this "motto" does not work for the drip of moisture. Then what is the difference?
No frost refrigerators are positioned as more advanced cooling systems in comparison with drip, and without knowing their operating principle you might think that these are two fundamentally different technologies. In fact, these automatic defrost systems have more similar features than differences.
- Both technologies assume the presence of an evaporator. What it is? This is a structural element that provides enhanced cooling of the rear wall of the refrigerator while the compressor is running.
- At this time in both systems, the moisture condenses on the surface of the cold wall, turning into small ice crystals.
- During the cycle period, when the compressor is not working, the rear wall heats up and the ice cubes are melted.
How the refrigerator will get rid of melted ice, and will be the defining difference of technology.
- In the refrigerator with droplet removal, the moisture flows down the grooves into a special compartment from which it evaporates into the room when the compressor starts up again and the liquid compartment heats up.
- No frost does not imply the flow of water: the moisture from the refrigerator is vented by means of air circulation.
By the way
Another difference is the location of the evaporator: when dripping moisture it is behind the back wall, while in the "know frost" it can be placed between the refrigerator and freezers.
It turns out, no matter what technology is used in your refrigerator - No frost or a drop system - manual defrosting does not threaten you anymore. And if so, is it worth overpaying for the advertised system?
No frost or drip system?
Knowledge of how each of these automatic defrosting systems works is useful, but does not answer the main question. So what's better: No frost or a drip system? A priori it is considered that "know frost" is more modern and perfect technology, as it appeared later, but there is an opinion that such an elevation of one technology over another is nothing more than a marketing move. The most important of the praised qualities No frost is present in drip coolers. Do I need to defrost refrigerators with these moisture removal technologies? No, and this is important. Are the remaining bonuses of a significant overpayment worthwhile - it's up to you.
- "Know frost" allows to achieve uniform temperature on all shelves of the refrigerator.
- After opening the door, the temperature in the chamber is more quickly leveled.
Here, perhaps, that's all. Yes, frost freezers freeze food faster, but this is compared to old manual defrosting cameras, so this fact should not be decisive in solving the dilemma: No frost or a drip system.
What about the shortcomings? They are slightly larger, but in the bulk they are just as insignificant as their dignity.
- It is believed that the operation of the fans can lead to rapid food winding, but this is rather a myth. Firstly, the air flow is not so strong that it is noticeable. Secondly, the food is in the refrigerator compartment not long enough to manifest changes. And thirdly, it is easy to avoid this if you store food in containers and packages.
- Usually in such refrigerators is less useful volume. This is due to the fact that the evaporator in these models is somewhat larger than in the drip.
- Due to the constant work of the NOFRO fans, refrigerators consume more energy, but this amount is unlikely to make a significant difference to your receipt for paying for electricity.
- Well, one more disadvantage is the increased noise level due to the same fans. True, in good models, the system can hardly be heard.
The only significant disadvantage of such a refrigerator is its price: think several times when deciding whether to overpay, because complaints that something is not working, quite a bit as for No frost, and for drip technology.
By the way
The elimination of a large amount of moisture, which can occur inside the refrigerator in a damp climate, is more efficiently implemented by the "know frost".But in a dry climate, where moisture will get into the machinery in a minimal amount, its use is not entirely justified.
And which is better to choose a freezer?
We already mentioned that No frost freezers freeze food very quickly, which, of course, pleases. But the problem is that in the freezing chambers only this automatic defrosting system can be used: the drip is not suitable for technical reasons. Most modern freezers are equipped with this particular system, and if you have an old model, then it means 100% is supposed to be manually defrosted.
Check the type of refrigerator you are looking at: if it is Frost free, then the "no frost" system is equipped with only a freezer, and the refrigerator will have a drip-off moisture. If before you Full no frost, then this technology has both a refrigerator and a freezer.
By the way
In Europe, "know frost" is not as popular as one might think. Not only that Europeans often give priority to the dropping technology of the refrigerating chamber, so also the models with manual defrosting of the freezing chamber occupy not the last place in the ranking of sales.
What about defrosting?
All the same, you doubt whether it is necessary to unfreeze the technique with such systems at least sometimes? In fact, it's not in vain: manufacturers recommend carrying out preventive defrosting about once a year, but most owners of refrigerators with automatic defrosting resort to this measure only when something does not work. The rest will tell you that they did not unfreeze it from the very moment of purchase.
That is, in the instructions of many models claim that an additional defrosting session is still needed, but in fact it turns out that with a drop system or No frost, nothing terrible will happen if it is not carried out.
It is easy to answer the question, which is better: automatic defrost or manual. But to make a choice between No frost or a drop system is not so easy. Analyze the parameters of the place where the refrigerator will be installed, your needs and preferences, and only then, when you have a clear picture of what you need, go to the store.