Heating Cost Saving Simulator
Enter area, insulation, and set temperature to see your monthly city-gas heating cost, how much you save by lowering 1–2°C, and what to do when you leave home.
🏠 Heating conditions
Insulation
Boiler mode
Rate & factor sources
- 💰 Regional rates: Korea City Gas Assoc. / local gas company tariffs (2025 est.)
- 🌡️ 7% saving per °C: Korea Energy Agency winter heating tips
- 📐 MJ conversion & base unit: simplified standard heating load estimate
※ All results are reference estimates; actual bills vary by invoice, housing, and weather. Individual city-gas boiler basis (excludes district heating, LPG, oil).
🔥 Estimated heating cost
Current monthly cost
118,088원
Basic + usage + 10% VAT · Est. monthly usage 5,766 MJ
Lower 1°C
-7,205원
6% /mo
Lower 2°C
-14,410원
12% /mo
🚪 Leaving home: turn off vs away-mode
Enter your away time to compare turning the boiler off versus lowering the temperature with away-mode.
Turn off while away
841원
Includes reheating cost on return
Keep away-mode
782원
Lower temp, ~40% duty
Break-even away time: 3.2시간 · Shorter → away-mode; longer → turn off
❄️ Winter 3 months & annual
Based on current settings, estimated cumulative cost and savings for the core winter months and the annual heating season.
| Period | Est. cost | Save (−1°C) | Save (−2°C) |
|---|---|---|---|
| Winter 3 months (Nov·Dec·Jan) | 342,455원 | -20,895원 | -41,789원 |
| Annual season (~4.5 mo) | 531,396원 | -32,423원 | -64,845원 |
Guide · FAQ · bal.pe.kr 도구 모음
계산 방법 상세는 Guide, 자주 묻는 질문은 FAQ, 단가 출처·운영 정보는 About 참조. 마지막 업데이트 2026-06-20.