Heating Profiles Explained

The Elon Smart Thermostat offers several heating profiles to help you balance energy efficiency, cost savings, and comfort. Each profile automatically manages how and when your geyser uses solar and grid power.

A green rating (from 0–5 leaves) shows how environmentally friendly and solar-efficient each profile is.
​
🌿🌿🌿🌿🌿 = most efficient (solar-only)
🌿 = least efficient (grid-only)

Best for: Maximum solar efficiency
​Description:
Get the absolute most out of your hot water system by using only solar power. The geyser will never use grid power automatically. You can still manually boost with grid power if needed.

Best for: People who shower mainly in the evening
​Description:
This efficient profile uses solar energy during the day and adds a small grid boost in the late afternoon (17:00–19:00) if the water temperature drops below your target grid setting. Ideal for evening routines and cloudy days.

Best for: Early risers and morning showers
​Description:
Heats water with grid power in the early morning (03:00–05:00) to ensure hot water after overnight use.
During the day, solar power reheats the water to the solar temperature target.
Tip: Set your solar target to 65°C to reduce nighttime heat loss.

Best for: Homes with both morning and evening usage
​Description:
Provides flexibility by using solar power whenever available, with grid heating in the early morning (03:00–05:00) and late afternoon (17:00–19:00) to reach the grid temperature target.

Best for: Homes without solar panels
​Description:
Limits the geyser’s temperature to 50°C to save electricity and reduce heat loss.
This profile can cut your water heating costs by up to 15% while ensuring basic comfort.
Default Profile: All new thermostats start in Eco Grid mode until you choose another profile.

Best for: Non-solar homes
​Description:
Uses grid power only for heating. Ideal if you don’t have solar panels.
You can also use the Eco Grid or Custom Grid Heating Schedule for more efficient control.

Best for: When you’re away
​Description:
Switches the geyser off completely to prevent any energy use while you’re not at home.
All other thermostat features remain available.

Best for: Users who want full control
​Description:
Create your own custom grid heating timers to match your lifestyle.
You can set up to 10 timers and 10 profiles for personalised heating control.
Tip: Don’t overthink it—just find a balance between comfort and savings that works for you.