How to calculate wall-hung boiler
As winter approaches, wall-mounted boilers are important equipment for home heating, and their purchase and calculation methods have become the focus of many consumers. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the calculation method of wall-hung boilers to help you make a more informed choice.
1. Calculation of heat load of wall-hung boiler
Calculation of the heat load of a wall-hung boiler is a key step in choosing a wall-hung boiler. Heat load refers to the heat that the wall-mounted boiler needs to provide per unit time to meet the heating needs of the room. The following are common calculation methods:
| Calculation method | formula | Description |
|---|---|---|
| area method | Heat load = area × heat load per unit area | Suitable for ordinary residences, the heat load per unit area is usually 100-150W/m² |
| volume method | Heat load = volume × heat load per unit volume | Suitable for rooms with high floor heights, the heat load per unit volume is usually 30-50W/m³ |
| Comprehensive approach | Heat load = (area × heat load per unit area) + (volume × heat load per unit volume) | Combine area and volume for more accuracy |
2. Power selection of wall-hung boiler
Based on the heat load calculation results, the appropriate wall-hung boiler power can be selected. The following are common power selection references:
| House area (m²) | Recommended power (kW) | Applicable scenarios |
|---|---|---|
| 60-100 | 18-24 | Small apartment |
| 100-150 | 24-28 | Medium-sized residence |
| 150-200 | 28-36 | Large apartment |
| More than 200 | 36 and above | Villa or commercial |
3. Energy efficiency calculation of wall-hung boiler
Energy efficiency is an important indicator to measure the energy-saving performance of wall-hung boilers. The following are common energy efficiency classes and their corresponding thermal efficiencies:
| Energy efficiency level | Thermal efficiency (%) | Description |
|---|---|---|
| Level 1 energy efficiency | ≥94 | The most energy-saving and suitable for long-term use |
| Level 2 energy efficiency | Good energy saving and high cost performance | |
| Level 3 energy efficiency | Basically meet the needs, the price is low |
4. Calculation of operating costs of wall-hung boilers
The operating costs of wall-mounted boilers are another focus of consumers. The following is the formula for calculating running costs:
| Fee type | Calculation formula | Description |
|---|---|---|
| gas bill | Gas cost = Gas consumption × Gas unit price | Gas consumption depends on the boiler power and usage time |
| Electricity bill | Electricity fee = electricity consumption × electricity price | Auxiliary equipment of wall-mounted boilers (such as water pumps) consume a small amount of electricity |
| Maintenance costs | Maintenance cost = annual maintenance cost × service life | Including regular cleaning, replacement of parts, etc. |
5. Suggestions for purchasing wall-hung boilers
1.Choose power based on house area and heating load: Avoid selecting too large or too small power to avoid energy waste or insufficient heating.
2.Prioritize energy-efficient products: Although high-efficiency wall-mounted boilers are more expensive, long-term use can save a lot of energy costs.
3.Consider brand and after-sales service: Choose well-known brands to ensure the quality and timeliness of after-sales service.
4.Pay attention to smart features: Modern wall-mounted boilers usually have functions such as intelligent temperature control and remote control, which can further enhance the user experience.
Through the above calculations and purchasing suggestions, I believe you can choose the most suitable wall-mounted boiler for your family and enjoy a warm and comfortable winter life.
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