Optimizing a water heater
Heat the tank during the cheapest hours — the heat stays for a long time.
Benefits
- Save 25–35% on water heating costs
- Hot water is ready when you need it
- Works automatically based on electricity price and supports solar profiles
- Power limits (W) help avoid overloading the main fuse
How it works
- Set heating time windows or use automatic optimization
- Optimaatti runs heating during the cheapest hours and can use a solar control profile for the tank
- Set grid power start/stop limits (W) so the heater does not exceed main fuse capacity
- Verify sizing: 2–3 kW heater works well for most detached houses
Try water heater control