Ventilation Systems for Wooden Houses and Energy-Efficient Buildings
Complete Ventilation Systems – Clean Air and Energy Efficiency
Provider of ventilation systems in Romania, with direct delivery from Bacău. We offer complete solutions for wooden houses, residential buildings, and commercial spaces: Heat recovery VMC systems, simple mechanical ventilation, assisted natural ventilation, and hybrid systems.
A ventilation system is obligatory in any modern, well-insulated home, to avoid condensation, mold, and to maintain good indoor air quality. At EcoCasa, you'll find complete solutions: from sizing the system according to the area and number of people, to delivering all the necessary components – ductwork, fans, heat recuperators, grilles, and accessories.
Our products are essential for energy-efficient passive houses, where perfect insulation absolutely requires controlled ventilation. We distribute systems from established European manufacturers, with performance certificates and warranties. We deliver throughout Romania, with free technical consulting for correct sizing.
Why choose our ventilation systems?
Maximum Energy Efficiency
Heat recovery units with efficiency up to 90%% – recover heat from exhaust air and transfer it to fresh air. Savings of 30-40%% on heating bills.
Clean Air, Filtered
HEPA and G4/F7 filters that retain dust, pollen, allergens, and pollutants. Ideal for families with children or people with allergies. Significantly improved indoor air quality.
Passive House Solutions
Complete MVAC (Mechanical Ventilation with Heat Recovery) systems for timber houses with superior thermal insulation. Eliminates condensation, mold, and excessive humidity without heat loss.
Quiet Operation
Next-generation EC motor fans, noise level below 25 dB. Sound insulation included for ductwork. Acoustic comfort in all rooms.
Complete Systems
From flexible and rigid ductwork, to fans, recuperators, grilles, diffusers, and accessories. Everything for a complete system, in one place.
Free Technical Consulting
We help you correctly size the ventilation system based on surface area, number of people, and type of construction. Airflow calculation according to NP 008/1997 standards.
What types of ventilation systems do you find at EcoCasa?
We offer all types of ventilation systems for homes, offices, and commercial spaces – from simple solutions for bathrooms and kitchens, to complete VMC systems with heat recovery for passive houses.
Heat recovery ventilation systems
Controlled Mechanical Ventilation with double flow, 75-90% efficiency%. Compact units for houses (flow rate 300-500 m³/h) or large units for offices and commercial spaces. G4, F7, or HEPA filters included. Ideal solution for passive wooden houses.
Simple mechanical ventilation systems
Exhaust fans for bathrooms, kitchens, and boiler rooms. Operation with humidity sensor, timer, or remote control. Airflows from 90 m³/h to 5,000 m³/h. Ideal for renovations or existing homes.
Assisted natural ventilation systems
Grilles with automatic airflow control, air inlets with insect protection, systems with thermal draft. Economical solution for old buildings or holiday homes. Minimal energy consumption.
Hybrid systems
Combination of natural and mechanical ventilation with intelligent control. Fans turn on automatically when natural ventilation is insufficient. Maximum energy savings.
Air Handling Unit (AHU)
Compact central units for passive houses and office buildings, with heating, cooling, humidification, and air filtration functions. Smart control via smartphone app or dedicated thermostat.
Components and accessories
Rigid and flexible ducting (100-400mm), grilles and diffusers, backdraft dampers, silencers, fresh air inlets. Everything for complete system installation.
Technical note: For thermally insulated wooden houses, a heat recovery ventilation system is mandatory to avoid moisture and mold problems. Correct sizing is based on the surface area of the dwelling (minimum flow rate of 30 m³/h per person according to NP 008/1997).
How to implement a VMC system with EcoCasa
From consulting to commissioning - a transparent 5-step process
Stage 1: Consultation and Sizing
We analyze the house plan, the number of people, the number of rooms, and the type of construction. We calculate the required flow rate according to NP 008/1997 (min. 30 m³/h per person). Initial consultation is free.
Step 2: Project and Offer
We deliver the technical design of the system: ductwork distribution diagram, heat exchanger placement, grille positions, pressure loss calculation. Detailed offer with all components.
Stage 3: Component Delivery
Heat exchangers, insulated ductwork, grilles, anemostats, accessories — delivered from the Bacău warehouse. Free shipping for complete systems. Delivery time: 1-3 days.
Stage 4: Installation
2-phase installation: rough-in phase (ductwork, wall penetrations) before insulation/finishes; final phase (heat exchanger, grilles, control panel) after finishes. Average duration: 3-5 days for a standard house.
Stage 5: Commissioning + Blower Door test (optional)
Room-by-room flow rate adjustment, heat exchanger operational test, ductwork airtightness check. Optional Blower Door test to validate house airtightness (target n50 ≤ 0.6 for passive houses).
What you need to know moving forward to choose a ventilation system
Why is ventilation mandatory in modern wooden houses?
Houses made of wood built to current thermal insulation standards are airtight – they no longer have the classic losses through windows, doors, or walls that ensured minimal natural ventilation. This airtightness is excellent for energy efficiency, but it creates a major problem: Stale air remains trapped in the house.
What happens without an adequate ventilation system:
- Excessive humidity - Your breath, cooking, showering - condenses on walls and windows
- Mold and damp – They appear in corners, behind furniture, in bathrooms
- Elevated CO₂ Fatigue, headaches, poor concentration
- Volatile Organic Compounds (VOCs) – Furniture, paints, cleaning products
- Allergens and dust mites It accumulates due to lack of air exchange
Correct solution: Controlled Mechanical Ventilation (CMV) system with heat recovery
- Introduce fresh filtered air from outside
- Ventilate the stale air from bathrooms, kitchen
- Recover 75-90% of heat – don't lose heat in winter
- Control humidity automatically
- It works continuously, silently
Applicable regulations in Romania:
- NP 008/1997 – Minimum debit 30 m³/h per person
- C 107/2005 – Mandatory ventilation for energy-efficient buildings
- EN 13141 - Performance standards for ventilation components
- I5/2010 – Standard for ventilation and air conditioning systems
In short: In a modern wooden house, ventilation is not optional - it is as important as the electrical or heating system. Without it, serious humidity and air quality problems will arise within 6-12 months of moving in.
Frequently Asked Questions
What is a VMC system and why do I need one in a wooden house?
Controlled Mechanical Ventilation (CMV) is a system that supplies filtered fresh air throughout the house while simultaneously exhausting stale air. The heat recovery version recovers 75-90% of the thermal energy from the outgoing air, transferring it to the incoming fresh air. In modern, well-insulated, and airtight timber-frame houses, CMV is essential to prevent humidity, mold, and maintain good indoor air quality. Without CMV, problems arise within the first 6-12 months of moving in.
How do I properly size a ventilation system for my house?
Sizing is based on the living area, number of people, and room types. The general rule is a minimum of 30 m³/h per person (according to NP 008/1997). For a 100 sqm house with 4 people, you need a system with a flow rate of approximately 200-300 m³/h. Bathrooms and kitchens require additional extraction. Send us your house plans at contact@ecoprofesional.ro, and we will recommend the right system with all the necessary components.
What is the difference between natural ventilation, mechanical ventilation, and heat recovery ventilation (HRV)?
Natural ventilation uses grilles and air inlets without fans—simple, but inefficient in modern airtight homes. Simple mechanical ventilation has exhaust fans (bathroom, kitchen) but loses heat with the expelled air. Heat recovery ventilation (HRV) is the complete solution: it extracts stale air, introduces filtered fresh air, and recovers heat—leading to major energy savings and maximum comfort. For modern timber houses, only HRV is recommended.
What types of filters should a good ventilation system have?
A good VMC system has at least two filtration stages: a G4 filter (retains coarse dust) and an F7 or F9 filter (retains pollen, fine particles, mold). For people with allergies or respiratory problems, we recommend adding a HEPA filter (retains particles under 0.3 microns, including bacteria and viruses). Filters should be changed every 6-12 months, depending on outdoor air quality. All filters are available at EcoProfesional for the systems we distribute.
How much does a complete ventilation system cost?
The cost varies depending on the size of the house, the complexity of the system, and the quality of the components chosen. A ventilation system with heat recovery for a house of 100-150 sqm includes the heat exchanger (the main component), insulated ducts, grilles, and mounting accessories. For a personalized quote, send us your house plans and the number of occupants at contact@ecoprofesional.ro. We will calculate all the necessary components and provide you with a detailed quote, with no obligation.
Do you deliver ventilation systems throughout Romania?
Yes, we deliver throughout Romania from our warehouse in Bacău. Orders confirmed by 2:00 PM are shipped the same day. Delivery time: 1-3 business days by courier or our own transport for large quantities. For complete VMC systems, transport is free.
What is the cost of maintaining a VMC system?
Annual maintenance of a VMC system includes: changing G4/F7 filters every 6-12 months (25-80 EUR/set), cleaning the heat exchanger once a year, checking fans and sensors. Average annual cost: 100-200 EUR for a standard house of 100-150 sqm. We recommend a professional technical inspection every 2 years.
Can the VMC system also be installed in an existing house, not just a new build?
Da, există soluții de VMC cu tubulaturi descentralizate (unități locale în fiecare cameră) sau sisteme semi-centralizate cu tubulaturi aparente izolate, montate sub plafon fals sau în mansardă. Costul este cu 20-30% mai mare decât la instalarea în construcție nouă, dar soluția e fezabilă pentru majoritatea caselor. Dimensionarea și oferta se fac după vizionare pe teren.
What is the connection between VMC and the nZEB (near Zero Energy Building) standard?
nZEB buildings (mandatory for new constructions in the EU from 2021) require both superior thermal insulation and mechanical ventilation with heat recovery efficiency of at least 75%%. Without MVHR, a house cannot obtain nZEB certification. Our systems meet the requirements of the EN 13141 standard and are compatible with the requirements of Mc 001/2006 for energy efficiency.
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