Sveiki! Tehniskas dabas jautājums. Šobrīd centralizēta ūdens uzsildīšanā izmaksā 12 EUR m3. Pie kādas elektrības cenas to ir izdevīgāk uzsildīt ar elektrisko boileri? https://building.lv/forums/37/235684/235684/_subject_#msg-235684 Wed, 22 Apr 2026 20:21:37 +0300 Phorum 5.2.23 https://building.lv/forums/37/235684/235688/_subject_#msg-235688 https://building.lv/forums/37/235684/235688/_subject_#msg-235688 ETT Dienas jautājums Fri, 04 Apr 2025 23:03:22 +0300 https://building.lv/forums/37/235684/235686/_subject_#msg-235686 https://building.lv/forums/37/235684/235686/_subject_#msg-235686
Ja tavus 12 eiro par kubu sadali uz kwh sanāk 12/54.7=0.22 eiro par kWh. tātad, ja elektrība ar visām komponentēm maksā zem 0.22 eiro/kWh, tad ar elektrību būs lētāk. Tikai elektrības cenā nav ierēķināts boileris, trubas un uzstādīšana, kas būtu jāierēķina.]]> Ugis S Dienas jautājums Fri, 04 Apr 2025 18:03:28 +0300 https://building.lv/forums/37/235684/235685/_subject_#msg-235685 https://building.lv/forums/37/235684/235685/_subject_#msg-235685 To calculate the electricity needed to heat 1 m³ of water from 10°C to 50°C, I'll use the formula for thermal energy:
Energy = mass × specific heat capacity × temperature change
Here's the calculation:

Mass of water: 1 m³ = 1000 liters = 1000 kg
Specific heat capacity of water: 4.186 kJ/(kg·°C)
Temperature change: 50°C - 10°C = 40°C

Energy = 1000 kg × 4.186 kJ/(kg·°C) × 40°C
Energy = 167,440 kJ
Converting to kWh (1 kWh = 3600 kJ):
Energy = 167,440 kJ ÷ 3600 kJ/kWh
Energy = 46.51 kWh
Therefore, you need approximately 46.5 kWh of electricity to heat 1 m³ of water from 10°C to 50°C, assuming 100% efficiency. In real-world applications, you would need to account for the efficiency of your heating system, which would increase the required electricity.]]> hot-water Dienas jautājums Fri, 04 Apr 2025 16:10:21 +0300 https://building.lv/forums/37/235684/235684/_subject_#msg-235684 https://building.lv/forums/37/235684/235684/_subject_#msg-235684 boileris Dienas jautājums Fri, 04 Apr 2025 15:50:03 +0300