Introduction to Natural Gas Connection
Switching to natural gas remains one of the most popular choices for Greek property owners, despite energy price fluctuations. Ease of use, the elimination of oil ordering, and the high efficiency of modern condensing boilers are strong motivators. However, the question "what will it actually cost me" is on every interested party's mind. In this article, we will analyze the actual costs, the stages of installation, and the technical specifications required.
1. Connection Fees and the EDA Contract
The first step is the application to the competent Natural Gas Distribution Company (e.g., EDA Attikis, EDA THESS, DEDA). The cost here is divided into two parts:
- Connection Fees: This is the amount paid for the installation of the meter. Companies often offer 100% discounts on connection fees as part of promotional campaigns, so the cost can be zero. Without an offer, the cost ranges from €250 to €500 for a typical residence.
- Deposit: An amount returned upon termination of the contract, usually around €50-€100.
The process involves submitting a dossier and an on-site inspection by a technician from the distribution company to determine the meter location.
2. The Cost of Internal Installation
This is the largest expense and covers the work from the meter to the inside of the house. The cost depends on the distance and the complexity of the route.
Engineering Study and Supervision
Every new installation requires a study by a licensed Mechanical Engineer, which is submitted to the EDA. The cost of the study and the issuance of the final operating permit (Tightness Certificate) ranges from €200 to €400.
Piping and Labor
The gas transmission line is usually made of copper or steel piping. For an average route of 10-15 meters, the cost of piping along with supports, valves, and the labor of a licensed gas plumber-installer amounts to €600 - €1,200.
3. Choosing a Natural Gas Boiler
The boiler is the heart of the system. Today, under ErP legislation, only condensing boilers are installed, which utilize the heat of flue gases, offering efficiency of up to 108%.
- Economic Boilers (Entry-level models): €700 - €950. Suitable for small apartments.
- Mid-Range (Recognized European manufacturers): €1,000 - €1,400. They offer better build quality and a longer warranty.
- Premium Boilers: €1,500 - €2,000+. They feature advanced automation systems and higher quality heat exchangers (e.g., stainless steel).
The cost of the chimney (coaxial flue) must also be factored into the boiler cost; it is usually included in the purchase package, but if extensions are needed, the cost increases.
4. Conversion of Heating Network and Radiators
If the house already had central heating (oil) and autonomy with solenoid valves, the connection is simple. However, if the house was old and lacked autonomy, additional work is required:
- Pipe separation: Construction of a new manifold (collector) and connection to existing radiators (€500 - €1,000).
- Radiators: If the old radiators are in good condition, they do not need to be replaced. However, a chemical network cleaning (flushing) is recommended, costing approximately €150-€250, to protect the new boiler from sludge and metal filings.
Summary Table of Estimated Costs
| Work / Procurement | Estimated Cost |
|---|---|
| Engineer Study & Supervision | €250 - €350 |
| Condensing Boiler (24kW) | €1,000 - €1,300 |
| Gas Installation Materials & Labor | €800 - €1,200 |
| Water/Heating Network Connection | €300 - €500 |
| TOTAL (Average price) | €2,350 - €3,350 |
Frequently Asked Questions (FAQ)
How long does the process take?
From signing the contract with the EDA to activating the meter, it can take 1 to 3 months, depending on the distribution company's workload. Internal work usually lasts 2-4 days.
Do I need approval from the apartment building?
According to Law 4495/2017, the owner can achieve autonomy without the majority's approval, provided safety standards are met and the building manager is notified in writing.
Can I get a subsidy?
Yes, programs such as "Exoikonomo" or special EDA funds for oil system replacement often subsidize up to 50-100% of the cost. Check the current announcements.
Is the installation of a gas detector mandatory?
For residential boilers installed outdoors (balcony), it is not mandatory, but it is recommended. For indoor spaces, there are strict ventilation standards.
Conclusion
Connecting to natural gas requires an initial investment starting from approximately €2,500. Nevertheless, the payback usually occurs in 4-6 years through fuel savings and reduced maintenance needs. Always choose certified technicians and engineers to ensure the safety and efficiency of your installation.