How to calculate the square meter of floor heating?
As winter approaches, floor heating, as a comfortable heating method for modern homes, has attracted much attention from consumers. Many users are often confused about how to calculate the floor heating area when installing floor heating. This article will answer this question in detail and provide structured data to help you understand quickly.
1. Calculation method of floor heating area
The floor heating area usually refers to the area that actually needs heating, rather than the building area of the house. Here are common calculations:
| Calculation project | Description | Example |
|---|---|---|
| Actual paved area | Deduct the area occupied by furniture, fixed equipment, etc. | The living room is 20㎡, and after deducting the sofa area, it is 18㎡ |
| Number of water distributor circuits | The coverage area of each loop is usually 15-20㎡ | A room of 80㎡ requires 4-5 circuits |
| heat load demand | Adjust according to regional climate and house insulation | The northern region requires 100-120W per square meter |
2. Key factors affecting the calculation of floor heating area
1.house structure: Wall thickness, floor height, number of doors and windows, etc. will affect heat loss.
2.Insulation performance: Good exterior wall insulation can reduce the paving area by 10%-20%.
3.Usage habits: Frequent activity areas need to be densely paved, and inactive areas can be appropriately reduced.
| House type | Recommended laying ratio |
|---|---|
| New energy-efficient homes | 60%-70% construction area |
| Ordinary apartment | 70%-80% construction area |
| old house | 80%-90% construction area |
3. Differences in area calculation for different floor heating systems
1.Water floor heating system:
• Pipe spacing needs to be calculated (usually 15-30cm)
• Pipe length per square meter is about 5-7 meters
2.Electric floor heating system:
• Calculated directly based on the area of heating cable or electric heating film
• 10% safety margin required
| System type | Power per unit area | Typical laying ratio |
|---|---|---|
| water floor heating | 80-120W/㎡ | 60%-80% |
| Cable floor heating | 150-200W/㎡ | 50%-70% |
| Electric heating film | 120-180W/㎡ | 70%-90% |
4. Professional calculation steps
1. Measure the net area of each room
2. Deduct the area occupied by fixed furniture
3. Calculate heat load requirements
4. Determine pipeline spacing or heating unit density
5. Add 5%-10% design margin
5. Frequently Asked Questions
Q: Does the balcony need floor heating?
A: It is recommended to lay paving on closed balconies, but not on open balconies.
Q: How to calculate the bathroom floor heating area?
A: Calculated based on actual area, but waterproofing treatment is required.
Q: Is the larger the floor heating area, the better?
A: No, it needs to be scientifically designed based on the actual heat load. Excessive laying will cause energy waste.
From the above analysis, it can be seen that the calculation of floor heating area requires comprehensive consideration of many factors. It is recommended that consumers consult a professional floor heating designer for accurate heat load calculation and system design to obtain the best heating effect and energy efficiency.
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