Hot Water Calculator
Calculate and compare hot water heating costs for different systems. Find the most economical solution for your water heating needs.
Hot Water Cost Calculator
Compare different water heating systems and find savings
Usage Details
Recommended: 150L for 3 people
Energy Prices & Settings
Hot Water System Technologies
Understanding different water heating technologies and their efficiency
Electric Systems
95% efficiency, instant hot water, higher running costs but lower installation cost
Gas Systems
85% efficiency, lower fuel costs, requires gas connection and flue
Heat Pumps
300% efficiency, very low running costs, higher installation cost
Solar Thermal
Free energy from sun, 60% coverage typical, requires backup system
Combi Boilers
88% efficiency, combined heating and hot water, space-saving solution
Hybrid Systems
Combine multiple technologies for optimal efficiency and reliability
Hot Water Saving Tips
Simple changes that can reduce your hot water costs significantly
Lower Temperature
Reduce water heating temperature by 5°C to save 10-15% on costs
Shorter Showers
Reduce shower time by 2 minutes to save 25% on hot water usage
Fix Leaks
A dripping hot water tap can waste €35-50 per year in energy