How to change central heating to floor heating? Comprehensive analysis of transformation steps and precautions
As the quality of life improves, more and more families want to replace traditional central heating with more comfortable floor heating systems. Floor heating is favored for its advantages of even heat dissipation and space saving. This article will provide you with a detailed analysis of the transformation process, cost comparison, and frequently asked questions to help you easily complete the upgrade.
1. Feasibility analysis of replacing central heating with floor heating
Before modification, it is necessary to confirm whether the community heating system is allowed to be modified, which usually requires approval from the property management. Here is a comparison of the two heating methods:
| Comparative item | central heating | Floor heating |
|---|---|---|
| Heat dissipation method | Radiator local heat dissipation | Uniform radiation on the ground |
| comfort | Average (prone to uneven heating and cooling) | High (feet warm and head cold) |
| Taking up space | Need to install radiator | Hidden under the floor |
| Energy consumption | Higher (water temperature needs to be above 60℃) | Lower (the water temperature is 40℃) |
2. Detailed explanation of transformation steps
1.Early assessment:Check the floor height of the house (floor heating needs to be raised 5-8cm) and the pressure-bearing capacity of the pipes (recommended ≤0.8MPa).
2.Design plan:Choose water floor heating (suitable for central heating) or electric floor heating, and calculate the heat dissipation per square meter (usually 80-120W/㎡).
3.Construction process:
| steps | Operation content | Things to note |
|---|---|---|
| Dismantle the original system | Remove radiator and some pipes | Close the main valve to avoid water leakage |
| Laying insulation layer | Laying 2cm extruded board | Seams sealed with foil tape |
| Install floor heating pipes | Coil according to design drawings | Spacing 15-20cm, bending radius ≥ 5 times the pipe diameter |
| stress test | Inject water and pressurize to 0.6MPa | Keep pressure for 24 hours, pressure drop ≤0.05MPa |
3. Cost budget and material selection
Taking a 100㎡ house as an example, the renovation costs are as follows:
| Project | Unit price (yuan/㎡) | Total price (yuan) |
|---|---|---|
| Dismantle old system | 20-30 | 2000-3000 |
| Floor heating pipes (PEX-A pipes) | 50-80 | 5000-8000 |
| Water collector (copper) | 800-1200/set | 1600-2400 (2 sets) |
| Labor cost | 40-60 | 4000-6000 |
| total | - | 12600-19400 |
4. Frequently Asked Questions
Q1: Will the heating effect be affected after the renovation?
A: A water mixing center needs to be installed to reduce the high-temperature water supply (60-80℃) to the suitable temperature for floor heating (40-50℃).
Q2: Can wooden floors be covered with floor heating?
A: It is recommended to choose special floor heating solid wood composite flooring (thermal conductivity >0.12W/m·k) and avoid pure solid wood flooring.
Q3: How long will the renovation take?
A: Generally, it takes 3-5 days (including pressure test), and construction needs to be avoided during the heating season.
5. Things to note
1. Choose oxygen barrier pipe materials (EVOH layer) to prevent system corrosion.
2. The length of each pipeline is ≤100m to avoid hydraulic imbalance.
3. System debugging is required after construction, and separate wiring is recommended for separate room temperature controls.
Through scientific transformation, the floor heating system can improve comfort by more than 30% and save energy by 15%-20%. It is recommended to choose a professional team for construction and keep the complete warranty certificate.
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