Ariston

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Ariston is a brand under the Ariston Group, known for manufacturing thermal comfort solutions such as water heaters, boilers, heat pumps, and air conditioners.

Ariston

Basic information
Founded	1930
Legal Structure	Public
Industry	Electronics
Also known as
Official website	https://www.aristongroup.com/

Privacy Concerns

Personal Information required for App

To operate Ariston WIFI-enabled water heaters/boilers remotely, users must install the Ariston Net app and register an account. Registration requires personal details including full name, email address and phone number. Adding a device also requires providing the installation address, which is usually the user's home address.

Lack of Local API

The Ariston products do not have a local API or any documentation on their cloud API calls. The lack of documentation leaves the user with no other official way to use their products without using the Ariston Net app. Without a local API, all device actions/statistics must go through Ariston Group’s servers.

Controversies

API Rate Limiting

Although Ariston provides no official support for third-party integrations, users have reverse-engineered the cloud API and created a Home Assistant integration for their water heaters.

On April 30th, 2024, Ariston has started enforcing stricter rate limits on API calls. This broke the integration for many users and, in some cases, even prevented users from using the official Ariston Net app. This left users with no way to control their devices remotely for hours after they hit the limit.

Ariston has not provided an official statement on the rate limits. Although, users have stated that after contacting Ariston support, they were told that Ariston prohibits/does not support third-party integrations.

Warranty Limitations vs Advertised Specifications

Some consumers have reported discrepancies between Ariston's advertised product specifications and the conditions stated in warranty documentation. In one reported case, a water heater marketed as capable of withstanding up to 16 bar of pressure developed a leak after approximately two months of operation. The installation used a pressure reducer set to 5 bar, which is well below both the advertised maximum pressure rating and typical household pressure limits for such devices.

However, the warranty claim was denied on the basis that the warranty documentation specified a maximum permitted pressure of 2 bar. This condition is significantly lower than the pressure tolerance stated in the product specifications and below common residential water pressure levels. Critics argue that such discrepancies may mislead consumers about the practical operating conditions under which the product is actually covered by warranty.