Understanding SpaPilot Heating Behavior

How SpaPilot Decides When to Heat

SpaPilot controls heating based on three main factors:

• Water temperature

• Electricity price

• Selected heating mode

The system continuously evaluates these conditions and decides whether heating should start immediately or wait.

Planner Basic Mode

Planner Basic is designed to maintain the spa temperature while trying to avoid expensive electricity hours.

Heating starts when both of the following conditions are met:

1. The water temperature drops below the target temperature (depending on the selected heating strategy).

2. The current electricity price is at or below the configured maximum price.

When both conditions are satisfied, SpaPilot will allow heating to begin.

If the electricity price is above the configured limit, heating will wait until cheaper hours are available.

Planner Dynamic Mode

Planner Dynamic is designed for planned spa usage.

Instead of maintaining the temperature continuously, the system calculates when heating should start so the spa reaches the target temperature at the scheduled time.

To reduce energy costs, the system prioritizes the cheapest available electricity hours before the planned spa time.

Because of this, heating may run less frequently than in Planner Basic mode.

Heating Strategy (Priority, Comfort, Economy)

SpaPilot allows small temperature variations depending on the selected heating strategy.

Priority

• Keeps the spa temperature closest to the target.

Comfort

• Allows moderate temperature variation to reduce unnecessary heating.

Economy

• Allows larger temperature variations to maximize energy savings.

Because of these strategies, the spa temperature may occasionally drop slightly below the target before heating starts again.

Why the Spa May Heat Even When Electricity Is Expensive

In certain situations the spa may heat even when the electricity price is above the configured limit.

This can happen when:

• the system determines that heating is required to maintain safe operation

• the spa controller initiates heating during internal maintenance cycles

These situations are controlled by the spa controller and may occur independently of SpaPilot’s price settings.

Heating During Filtration Cycles

Spa controllers sometimes allow heating during filtration cycles.

Filtration cycles are part of the spa’s normal maintenance process and help keep the water clean.

Because these cycles are controlled by the spa controller itself, heating may occur during filtration even if the electricity price is above your configured limit.

If Heating Does Not Behave as Expected

If you believe the spa is not heating correctly, check the following:

• Confirm your target temperature is set correctly

• Verify your maximum electricity price limit

• Check that Instant Heating is not currently active

• Refresh the app to ensure the latest spa status is displayed

If the issue continues, please contact support so we can review your configuration.

Summary

SpaPilot automatically manages spa heating by combining:

• water temperature

• electricity prices

• heating mode

• spa controller behavior

The system continuously evaluates these factors to heat the spa efficiently while reducing unnecessary energy usage.