Introduction
As summers get hotter, a good air conditioning system is no longer a luxury, but a necessity. At Grossmann, we offer energy-efficient, quiet solutions suitable for any home. Below you will find a complete guide, with practical advice, product recommendations and sizing information.
The benefits of a modern air conditioner
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Better air quality – filters retain dust, pollen and allergens.
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Humidity control – prevents mold and protects furniture.
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Comfort and better sleep – stable temperature, without fluctuations.
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Lower bills – current technologies consume significantly less.
Types of systems and when to choose them
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Split systems – for individual rooms or small apartments; quick installation and optimal cost.
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Ducted (centralized) systems – for homes or offices with multiple rooms; uniform distribution, discreet appearance.
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Portable air conditioner – flexible, easy to move; good as a temporary solution or for rental.
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Intelligent systems (Smart AC) – app control, scheduling, consumption monitoring.
How to choose the right power (indicative sizing)
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10–20 m²: 2.0–2.5 kW (≈ 7,000–9,000 BTU)
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20–35 m²: 3.5 kW (≈ 12,000 BTU)
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35–50 m²: 5.0 kW (≈ 18,000 BTU)
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50–70 m²: 7.0 kW (≈ 24,000 BTU)
Note: take into account height over 2.6 m, sun exposure, number of people and heat-generating appliances (oven, PCs). For atypical spaces, request a free consultation.
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Key purchase criteria
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Energy efficiency: pursues A++/A+++ classes and inverter technology.
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Noise level: for the bedroom, look for values as low as possible.
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Filtration and functions: washable filters, ionization, sleep mode, auto-restart.
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Total cost: includes installation and necessary accessories.
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Warranty and service: brands with a solid service network.
Maintenance for maximum duration and low consumption
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Clean or replace filters every 3–6 months.
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Check the refrigeration system annually.
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Keep the outdoor unit clean.
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Avoid extreme settings; the optimal difference is 6–8°C from outside.
Common mistakes to avoid
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Undersizing or oversizing the device.
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Unauthorized installation (may void the warranty).
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Ignoring the correct positioning of the unit.
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Lack of periodic maintenance.
Quick product recommendations
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For 18 m² room: Split 9,000 BTU, A+++, silent – See model
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For 28 m² living room: Split 12,000 BTU, inverter, Wi-Fi – See the model
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For 3-room apartment: Ducted system with zoning – See model
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For rental or small office: Portable with single exhaust – See model
Frequently asked questions
How much does a 12,000 BTU appliance consume?
It depends on efficiency and settings, but A++/A+++ models with inverter can consume 30–40% less than old ones.
Can it heat up in winter?
Yes, many inverter models have an effective heating function at moderate temperatures.
Is annual service required?
Recommended – extends lifespan and maintains efficiency.
Why choose Grossmann?
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Full range of energy efficient equipment.
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Free consultation before purchase.
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Extended warranty and after-sales support
