Air Conditioning Tips
May 7, 2026
8 min read
An office environment needs a special approach to air conditioning. It’s not enough to simply cool the air — you need to maintain a comfortable temperature, the right humidity level and quiet operation. An office air conditioner should be energy efficient, allow zoning (for different rooms with different needs) and offer automatic control. If your company or small office is in Varna, you’re in the right place — Svit Komfortu offers complete solutions with installation and maintenance.
Why the office is different — the climate needs of an office environment
Cooling a home and cooling an office are two completely different things. While you may put up with some discomfort at home, at work it’s another story.
🏢 Open-plan layout
Most modern offices have no closed rooms — instead there is one large open space with dozens of workstations. The air conditioner has to cool everything evenly, without cold or hot spots that give people migraines.
⏰ Long working hours
An office runs all day — 8 to 10 hours. That is far more work for an air conditioner than at home. If you don’t want your accounts department paying frightening electricity bills, the system has to be energy efficient.
🔇 Quiet is a must
People at work need quiet to concentrate. Noise above 25–30 decibels kills productivity. You should choose a quiet air conditioner, ideally with a night/quiet mode.
💼 Different types of rooms
Meeting rooms, server rooms, kitchens — each zone has its own needs. The server room generates heat, while the meeting room may get direct sunlight. A multi-zone system is practically a necessity.
What the science and the numbers say
The American institute ASHRAE has surveyed thousands of office workers. Here’s what they found:
- People work best at a temperature of around 21–23°C
- Humidity between 40–60% is ideal (below that — dry skin and irritation; above it — viral illnesses)
- When the air conditioner works unevenly, productivity drops by 5–8%
- If noise is above 35 decibels, 37% of employees have trouble concentrating
Why an office air conditioner matters more than just another home unit
Putting an ordinary home air conditioner in an office is like using roofing brackets on a skyscraper. It’s a technical solution, but the wrong one. Here’s why an office system is truly an investment rather than an expense:
- The law is clear: In the EU, the employer is legally responsible for providing a comfortable working environment (OSPS directive 89/654/EEC). If an employee suffers because of poor cooling, the company can be taken to court.
- Productivity goes up: People work 10–15% better in an optimal environment (according to HR studies). Do the math: 10 employees × 15% × monthly salary = that pays for the air conditioner within a year.
- Sick leave goes down: Poor air conditioning leads to respiratory problems, headaches and excessive fatigue. The result — absences and sick days. A good air conditioner saves the company from that.
- Costs can be deducted: In many EU countries, workplace environment costs count as a business expense and reduce taxable income.
- Image matters: When a new employee walks into the office or a client visits, the first impression is the climate. A hot, uncomfortable office sends a poor signal.
- Built to last: A commercial air conditioner is designed to run for 12–15 years with minimal maintenance. A home air conditioner will break down or lose capacity after 3–4 years.
💡 Tip: If the office is over 80 m², a single home air conditioner simply won’t cut it. You’ll overwork it, it will be noisy, and one corner will still be warm. A multi-split or cassette system is the right choice instead.
Comparison: single-split vs. multi-split vs. cassette system
| Feature | Single-split | Multi-split | Cassette | Ducted |
|---|
| For area (m²) | Up to 30 | 30–80 | 50–150 | 100+ |
| Price (from €) | 399 | 899 | 1 290 | 1 800 |
| Installation time | 1 day | 2–3 days | 2–3 days | 4–7 days |
| Noise level (dB) | 19–40 | 20–45 | 25–35 | 20–30 |
| Zoning | No | Yes (independent) | Partial | Yes (full) |
| Wi-Fi control | Yes (optional) | Yes | Yes (with module) | Yes (central system) |
| Energy class | A++, A+++ | A++ | A++ | A+, A++ |
| Aesthetics | Visible cassette | Visible units | Discreet (in the ceiling) | Grilles in ceiling/wall |
Recommendation: For small offices (20–40 m²) — a single-split system. For medium offices (40–80 m²) — multi-split. For a large open-plan space or an entire building — a cassette or ducted system.
How to choose an office air conditioner — a practical guide
- Measure the office area
Take the dimensions (length × width) of every room you need to cool. For an open-plan layout, measure the whole floor. Rule of thumb: 1 m² = 100 BTU of cooling (for a normal climate and insulation). Example: a 50 m² office needs an air conditioner of at least 5,000–6,000 BTU (= one 12,000 BTU system or two 9,000 BTU systems).
- Define your zones
Do you have separate office rooms (individual offices) or an open-plan layout? For separate rooms — multi-split. For an open-plan space over 60 m² — a cassette system.
- Ask about noise and comfort
Ask whether the air conditioner offers a „quiet“ mode below 25 dB. This is critical for an office where people talk and think. The indoor unit should have a low-noise mode for daytime use.
- Check the energy efficiency
Classes A++ and A+++ are recommended. An average office saves 30–40% on electricity by switching from class B to A++. For a monthly bill of 1000 €, the saving is 300–400 €/month.
- Contact an installer for a site survey
Before buying, schedule a free consultation. The installer should determine the optimal configuration and give you a cost estimate. Talk to us at +359 88 639 24 24 or fill in the contact form.
Installation in Varna
Svit Komfortu is a licensed installer with F-Gas certification. All our technicians have more than 5 years of experience in office air conditioning.
Installation process (standard)
- Day 1: Free site survey and room measurement
- Days 2–3: Mounting the outdoor unit (on the roof or wall)
- Days 3–4: Running pipes and cables, mounting the indoor unit(s)
- Day 5: Testing, warranty registration, training on the controls
Installation service pricing
| Installation type | Description | Price |
|---|
| Single-split system | Wall-mounted split, up to 15 m of line set | 150 € |
| Multi-split (2–3 zones) | One outdoor unit, two indoor units, 3 days of work | 280 € |
| Cassette system | Ceiling installation, support framing, more complex work | 350 € |
| Ducted system | Priced by contract (depends on distance and number of grilles) | from 450 € upward |
Included in the price:- Mounting the outdoor and indoor units
- Running the line set and cables
- Vacuuming and refrigerant charging
- Electrical connection with protection at the panel
- Testing and trial run
- Warranty registration with the manufacturer
- Training staff to use the remote control
Not included: Painting work, routing drain pipes into a dedicated drain line (for cassette systems), additional brackets and grilles.
ℹ️ Important: Installation must be carried out by a licensed technician. Incorrect installation voids the warranty and reduces efficiency by up to 40%.
Frequently asked questions
How long does an office air conditioner last?
With regular maintenance (monthly filter cleaning, annual service), an office air conditioner lasts 12–15 years. The refrigerant should be checked every 2 years. Spare parts are available throughout the entire service life.What is the best operating schedule for an office?
The air conditioner should run on a schedule to reduce energy use. Recommended setup:• Before the working day (08:00): pre-conditioning to 22–24°C (30 minutes)• During working hours (09:00–17:00): 21–23°C with 45–55% humidity• After the working day: switch offUsing Wi-Fi control lets you program this schedule automatically.Multi-split or cassette system — which is cheaper?
Multi-split is the cheaper upfront investment (from 899 €), but a cassette system is cheaper to run (energy efficiency and quietness). For an office over 60 m², a cassette system is usually more economical in the long run thanks to its even cooling.Heating — can office systems work in winter?
Yes! Almost all office air conditioners have a heating mode (heat pump). Our systems work down to –25°C (on certified models). In winter, the air conditioner works as a heater and provides energy security through the colder months.Which refrigerant is eco-friendly?
All modern office air conditioners use R-32 or R-410A refrigerants, which have a low GWP (Global Warming Potential). R-32 is recommended by the EU because of its low impact on the ozone layer and low global warming potential. Servicing and recharging should only be done by certified technicians.Is service needed after installation?
Yes, an annual service in May–June (before the start of the season) is recommended. Our service includes:• Cleaning the filters and the indoor unit• Checking the refrigerant• Checking the electrical connections• Testing cooling and heatingCost: from 69 € for a single-split system to 150 € for a cassette system.
Ready for optimal office air conditioning?
Contact us today for a free site survey and a personalized quote. Our experts will determine the ideal system for your office.