EnergyLabelEU
EN
Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 5.1 kW · cooling and heating

TCL MT1821

A++

Uses less electricity than 15% of the 5,158 split air conditioners, 4–5 kW on the EU register. At your selected price (European Union) that is €83 a year, €830 over ten years.

Cooling, SEER
6.1
Typical 6.8
Heating, SCOP
4.0
Typical 4.1
Cooling cost
€83 / year
+€396 if you also heat with it (average climate)

Uses more than most comparable models: 85 % of them need less. Rotenso LEP35Xi R16 / LOP35Xo R16, the most efficient alternative on sale, saves about €46 a year. Class A++ is the most common class in this group (69% of models). Heating efficiency (SCOP 4.0) is below the typical 4.1 of its group. TCL has 21 models in this group; this one is number 16 among them.

Where it stands

Rank 4,127 of 5,158 split air conditioners, 4–5 kW by yearly consumption. 4,126 use less.

Median 254 This model · 293 100 850 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Evvo AA CLIMA 18000 293 kWh same
  2. A++ Cecotec 08183 293 kWh same
  3. A++ TCL MT1821 293 kWh
  4. A++ Electrolux EACS/I-18HEL/N8/out EEC / EACS/I-18HEL/N8/in EEC 293 kWh same
  5. A++ Electrolux EACS/I-18HTP/HC/N8/out EEC / EACS/I-18HTP/HC/N8/in EEC 293 kWh same
See the full ranking

What it will cost you

Period MT1821 LEP35Xi R16 / LOP35Xo R16 Difference
1 year €83 €37 −€46
5 years €415 €185 −€229
10 years €830 €371 −€459
15 years €1,245 €556 −€688

Is the more efficient model worth its price?

Years of use

Enter both purchase prices to see the total cost of ownership.

Cooling and heating

Cooling season 293 kWh / yr
Heating, average climate 1,400 kWh / yr

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model CoolingSEER kWh / yr Saves / year in 10 years
A++ TCL MT1821 (this model)
5.1 kW6.1 293 — —
A+++ Rotenso LEP35Xi R16 / LOP35Xo R16 compare
5.1 kW9.4 131 €46 €459
A++ Lamborghini Caloreclima RUBINO S 18 compare
5.3 kW7.0 132 €46 €456
A++ Lamborghini Caloreclima RUBINO S 18 PLUS compare
5.3 kW7.0 132 €46 €456
A+++ Mitsubishi Heavy Industries SCM45ZS-W_SRK20ZSX-W_SRK25ZSX-W compare
4.5 kW9.1 174 €34 €337
A+++ Daikin FTXM20R2V1B / FTXM25R2V1B / 2MXM50A2V1B9 compare
4.5 kW8.7 181 €32 €317

Label and product sheet

Energy class cooling / heating
A++ / A+
SEER
6.1
SCOP warmer / average / colder
– / 4.0 / –
Cooling design load
5.1 kW
Heating design load (average)
4.0 kW
Yearly cooling
293 kWh
Yearly heating (average climate)
1,400 kWh
Sound power indoor / outdoor
53 / 65 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by TCL under one model number.

MT1821

  1. Placed on the EU market
  2. First published in the EU register (EPREL)

Questions

How much does the TCL MT1821 cost to run?

At one cooling season as on the label it uses about 293 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €83 a year, or €830 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 6.1 and SCOP 4.0 in the average climate: higher is better.