EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 3.5 kW · cooling and heating

HTWS035IX75B

A++

Uses less electricity than 16% of the 3,067 split air conditioners, 3 kW on the EU register. At your selected price (European Union) that is €56 a year, €561 over ten years.

Cooling, SEER
6.1
Typical 6.5
Heating, SCOP
4.0
Typical 4.1
Cooling cost
€56 / year
+€211 if you also heat with it (average climate)

Uses more than most comparable models: 84 % of them need less. Kadeer Electrical NF-ST30CR, the most efficient alternative on sale, saves about €55 a year. Class A++ is the most common class in this group (67% of models). Heating efficiency (SCOP 4.0) is below the typical 4.1 of its group. Of 13 HTW models in this group, it ranks last.

Where it stands

Rank 2,429 of 3,067 split air conditioners, 3 kW by yearly consumption. 2,428 use less.

Median 184 This model · 198 0 450 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Vesser WAV12DS/AV12DS 198 kWh same
  2. A+++ Sevra SEV-12JO 198 kWh same
  3. A++ HTWS035IX75B 198 kWh
  4. A++ Toyotomi OTN-12QINV/OTG-12QINV 198 kWh same
  5. A++ Skyluxe SKY-S035ECOR32 198 kWh same
See the full ranking

What it will cost you

Period HTWS035IX75B NF-ST30CR Difference
1 year €56 €1 −€55
5 years €280 €4 −€276
10 years €561 €8 −€552
15 years €841 €13 −€828

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 198 kWh / yr
Heating, average climate 745 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 4.0 198
Average (e.g. Strasbourg) 4.0 745
Colder (e.g. Helsinki) 4.0 916

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++ HTWS035IX75B (this model)
3.5 kW6.1 198 — —
3.0 kW50.0 3 €55 €552
3.0 kW9.3 102 €27 €272
3.0 kW8.8 103 €27 €269
3.0 kW8.8 103 €27 €269
3.0 kW9.0 112 €24 €244

Label and product sheet

Energy class cooling / heating
A++ / A+++
SEER
6.1
SCOP warmer / average / colder
4.0 / 4.0 / 4.0
Cooling design load
3.5 kW
Heating design load (average)
2.5 kW
Yearly cooling
198 kWh
Yearly heating (average climate)
745 kWh
Sound power indoor / outdoor
52 / 64 dB(A)
Refrigerant
R32 (GWP 15)

Model numbers and history

Registered by HTW under one model number.

HTWS035IX75B

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

Questions

How much does the HTWS035IX75B cost to run?

At one cooling season as on the label it uses about 198 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €56 a year, or €561 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.