What gas is pumped into the refrigerator: a complete guide to refrigerants 2026

Have you ever wondered what exactly keeps your refrigerator cold? Behind the freezer and food freshness is not just electricity, but a complex system with circulating special gas that absorbs heat inside the chamber and releases it outside. In 2026, the range of these gases is wider than ever: from environmentally friendly hydrocarbons to new generation freons. refrigerant - a special gas that absorbs heat inside the chamber and releases it outside. In 2026, the range of these gases is wider than ever: from environmentally friendly hydrocarbons to new generation freons.

But why do some refrigerators work on R134a, and others on R600a? Why are leaks dangerous and how to detect them? Is it possible to replace the gas yourself? In this article we will analyze all types of refrigerantstheir pros and cons and provide a checklist for checking the tightness of the system. We will also answer the question that worries many: why modern refrigerators have become “explosive” and what to do about it.

1. The main types of gases in refrigerators: comparison of 2026

Modern refrigerators use refrigerants of three key groups: freons (hydrofluorocarbons), hydrocarbons (isobutane, propane) and natural gases (for example, CO₂). Each type has unique properties that affect the efficiency, environmental friendliness and safety of equipment.

Until the 2010s, the leader R12 (dichlorodifluoromethane), but due to damage to the ozone layer it was banned. Today the most common are:

• 🔵 R134a - freon without chlorine, safe for ozone, but with a high global warming potential (GWP = 1430). Used in 60% of household refrigerators.
• 🟢 R600a (isobutane) - a hydrocarbon with GWP=3, environmentally friendly, but flammable. Popular in models Liebherr, Beko, Indesit.
• 🟡 R290 (propane) - another hydrocarbon, similar to R600a, but with better thermal conductivity. Found in industrial refrigerators.
• ⚪ R450A - a mixture based on R134a with a reduced GWP (549). Used in premium models Samsung and LG.

The choice of refrigerant depends on climate class the refrigerator (for example, SN-T for hot regions requires more efficient gas) and legal standards. In the EU, freons with GWP above 150 have been banned since 2026, so manufacturers are massively switching to climate class R600a And R290.

2. How to determine what gas is in your refrigerator

The type of refrigerant is always indicated on nameplate (metal plate) on the back or inside of the refrigerator. Look for inscriptions like Refrigerant: R600a or Refrigerant: R134a. If the plate is erased, check:

• 📄 Device passport - section "Technical Specifications".
• 🔍 Refrigerator model on the Internet (for example, Atlant MXM 2835-90 works on R600a).
• 🛠️ Tube color: for R600a orange is often used, for R134a blue.

If there is no data, focus on year of manufacture:

3. Pros and cons of popular refrigerants.

The choice of gas affects cooling efficiency, compressor noise and even cost repairLet's look at the key features of each type:

🔵 R134a (Tetrafluoroethane)

• ✅ Safe —non-flammable, non-explosive.
• ✅ Durable —service life up to 15 years without refueling.
• ❌ Only relatively environmentally friendly —GWP is 1430 times higher than that of CO₂.
• ❌ Expensive repairs —price of 1 kg of gas ~1500–2000 ₽ (in 2026 year).

🟢 R600a (Isobutane)

• ✅ Eco-friendly — GWP=3, approved in the EU and Russia.
• ✅ Energy efficient —electricity consumption for 10–15% lower than that R134a.
• ❌ Flammable - if there is a leak of more than 31 g/m³, it forms an explosive mixture with air.
• ❌ Requires caution during repairs (a certified one is required master).

Why does R600a explode?

Isobutane is heavier than air and accumulates at the bottom of the room. At a concentration of 1.3–8.5% and a spark (for example, from a socket), an explosion occurs. However, for this to occur, at least as much as possible must escape. 50–70 g of gas - this is only possible if the circuit is seriously damaged.

🟡 R290 (Propane)

Similar to R600a, but with better thermal conductivity. Used in industrial refrigerators and some models. Miele. — even more flammablethan isobutane.

⚪ R450A (Mixture of R134a + R1234ze)

New freon with lower GWP (549). Advantages:

• ✅ Compatible with most compressors for R134a (only refueling is needed).
• ✅ Less harmful to the climate than clean ones R134a.
• ❌ Expensive —price ~2500 ₽/kg.

4. The danger of gas leakage: myths and real risks.

The main fear of refrigerator owners is an explosion. But in practice, such cases are extremely rare. According to Rosstandart, in 2023–2026 only 12 incidents with hydrocarbon refrigerants were recorded, and all of them were related to R600a - explosion. But in practice such cases are extremely rare. According to Rosstandart, in 2023–2026, only 12 incidents with hydrocarbon refrigerants were recorded, and all of them were related to improper repair or mechanical damage contour.

Real risks:

• 🔥 Fire —only with a leak of >50 g and the presence of an open flame.
• ❄️ Loss of cold - even a small leak (10-20 g) impairs cooling by 30-50%.
• 💨 Poisoning - is unlikely, since refrigerants are non-toxic in small doses.

The temperature in the chambers has increased|The compressor is running without stopping|There is a smell of burning or chemicals|There is no condensation on the pipes (although there used to be)|The refrigerator turns off with an error E1 or F2

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How to check the leak yourself:

1. Disconnect the refrigerator from the mains.
2. Apply a soap solution to the joints of the tubes (where the compressor and condenser are connected).
3. If bubbles appear, there is a leak. Do not use open fire!

⚠️ Attention: If If you suspect a leak R600a, immediately ventilate the room and do not turn on electrical appliances until the breakdown is repaired. For repairs, call a technician certified to work with flammable refrigerants.

5. Is it possible to replace the gas in the refrigerator yourself?

Theoretically, yes, but in practice it is dangerous and illegal. In Russia, since 2020, rules have been in force according to which:

• Refrigerant charging can only be carried out by certified workshops.
• For work with R600a and R290 required permission from the Ministry of Emergency Situations (due to fire danger).
• Self-refueling will cancel guarantee and may lead to to fine up to 50,000 ₽ (according to Article 8.2 of the Code of Administrative Offenses of the Russian Federation).

If you still decide to take a risk, you will need:

• 🛠️ Vacuum pump (for pumping out old gas).
• ⚖️ Scales (for accurate dosage of new refrigerant).
• 🔧 Gauge manifold (for pressure control).
• 🧤 Protective gloves and glasses (required when working with R600a).

⚠️ Attention: When replacing R12 to R134a it is necessary to flush the system - these gases are incompatible! data-i="208">Critical information: Refrigerators with the system compressor oil (For R12 mineral is used for R134a - synthetic POE).

Critical Information: In refrigerators with No Frost use 15–20% more refrigerant than in drip models. Insufficient refilling will lead to freezing of the evaporator and damage to the fan.

6. Which gas is better to choose when buying a refrigerator in 2026? year

When choosing a new refrigerator, the type of refrigerant should be one of the key criteria. Here is what experts recommend:

🏡 For home (household models)

• 🥇 R600a —optimal in terms of price, environmental friendliness and efficiency. Suitable for families with children (provided that the equipment is in good working order).
• 🥈 R134a - if it is important to you safety and durability (for example, for a summer residence).
• 🥉 R450A - for premium models with a long warranty (7+ years).

🏭 For office or trade

• 🏆 R290 —high performance, but requires professional installation.
• 🛒 R744 (CO₂) —in industrial refrigerators (for example, in supermarkets). It is environmentally friendly, but expensive to maintain.

It is also worth paying attention to climate class:

• N (16–32°C) - for temperate climates.
• SN-T (10–43°C) - for hot regions (for example, Krasnodar Territory).

In 2026, the best models in terms of price/quality ratio with environmentally friendly refrigerants:

• Liebherr CN 4815 (R600a, class SN-T).
• Samsung RB37A52N0SA (R450A, system Twin Cooling Plus).
• Atlant MHM 2808-99 (R600a, budget option).

7. The future of refrigerants: what awaits refrigerators after 2030 year

The European Union plans to completely abandon freons with GWP above 15 by 2030. This means that R134a and even R450A They will be replaced by:

• 🌿 Natural refrigerants — R744 (CO₂), R717 (ammonia), R290 (propane).
• 💡 New synthetic mixtures —for example, R466A (GWP=733, but not flammable).
• ⚡ Magnetic refrigerators - without gas, based on the magnetocaloric effect (still in development).

In Russia, the transition will be slower due to dependence on imported technologies. However, some brands are already available (for example, Haier and Midea) are testing refrigerators for R744 for the Russian market.

⚠️ Attention: Refrigerant standards may change. Before purchasing a refrigerator, check the current requirements in the technical regulations of the Customs Union TR TS 004/2011 (section “Safety of low-voltage equipment”).

FAQ: Frequently asked questions about gas in the refrigerator

Is it possible to mix different refrigerants (for example, R134a and R600a)?

No! Mixing will lead to damage to the compressor and leakage. Each gas requires its own type of oil and pressure in the system. For example, chemical reaction, compressor damage and leakage. Each gas requires a different type of oil and system pressure. For example, R600a operates at a pressure of 0.5–1.5 bar, and R134a - 1.5–3 bar. 1–2 days.

How often do you need to refill gas in the refrigerator?

In a working refrigerator, gas does not evaporate. data-i="264">leakage —the system is sealed only when leak (for example, due to corrosion of tubes or mechanical damage). The average service life of the refrigerant is 10–15 years. If the refrigerator begins to freeze worse, the reason is more likely in clogging of the capillary tube or compressor breakdownand not in the gas.

How dangerous is R600a refrigerant to health?

In low concentrations R600a is harmless - it is non-toxic and odorless. The only danger is high concentration (more than 31 g/m³), which can cause:

• Dizziness and nausea (due to displacement of oxygen).
• Irritation of mucous membranes (during direct inhalation).

For poisoning, at least 100 g of gas must leak into a room of 20 m² - this is only possible if rupture contour (for example, when transporting a refrigerator lying down).

Why is a new refrigerator on R600a more expensive than on R134a?

The price is determined by:

1. Cost certification —the production of refrigerators on R600a requires additional safety checks.
2. Quality of components —hydrocarbons require more durable tubes and seals.
3. Energy efficiency —models on R600a consume less electricity (class A+++), which justifies price.

The difference in cost between refrigerators of R134a and R600a the same model is about 10–15%.

Is it possible to convert an old refrigerator from R12 to R600a?

Technically possible, but impractical. It will be required:

• Replacement compressor (the old ones are not designed for pressure R600a).
• Flush the system and replace oil on POE.
• Replacement filter-drier.

The cost of such repairs is comparable to the purchase of a new refrigerator (20,000–30,000 rubles). The exception is rare models (for example, ZIL-63), where replacement is justified by the collection value.