Smart Thermostats in Rental Apartments — Energy Savings

Smart Thermostats in Rental Apartments — Energy Savings and Tenant Comfort

Rising energy prices and growing environmental awareness are driving rental property owners to seek effective ways to reduce heating costs. One of the most cost-effective solutions is smart thermostats, which enable precise temperature management in rental units. In this article, we will explore how smart thermostats can transform energy management in rental properties, what benefits they bring to both landlords and tenants, and what to consider when choosing and installing them.

What Are Smart Thermostats?

Smart thermostats are advanced temperature control devices that go far beyond the capabilities of traditional thermostats. Equipped with Wi-Fi modules, occupancy sensors, and often artificial intelligence algorithms, they can automatically adjust the temperature to match the residents' lifestyle. Unlike conventional regulators, smart thermostats learn the habits of household members and optimise heating in real time.

There are many models available on the market — from simpler ones controlled via a mobile app to advanced systems integrated with smart home platforms such as Google Home, Amazon Alexa, and Apple HomeKit. Key features of modern thermostats include:

• Remote temperature control via a mobile app
• Automatic heating schedules
• Occupancy sensors that detect whether someone is home
• Energy consumption reports and savings statistics
• Integration with other smart home devices
• Geofencing — automatically lowering the temperature when residents leave

Why Invest in Smart Thermostats for Rental Apartments?

Investing in a smart thermostat is a decision that pays off on multiple levels. According to studies conducted by European energy agencies in 2025 and 2026, smart thermostats can reduce heating bills by an average of 20–30%. For rental apartments, this translates into tangible savings for both landlords who cover utility costs and tenants who pay for energy individually.

Key benefits for landlords include:

• Lower operating costs — reduced heating bills mean lower property maintenance costs, which is particularly important when utilities are included in the rent
• Increased listing appeal — tenants increasingly value energy efficiency and smart home features when choosing an apartment
• Property protection — smart thermostats can alert you to unusually low temperatures, helping prevent pipe freezing during winter
• Higher property value — upgrading an apartment with smart home elements can increase its market value
• Easier multi-property management — remote temperature monitoring in vacant apartments between tenancies

Legal Considerations for Installing Thermostats in Rental Properties

Before installing a smart thermostat in a rental apartment, it is worth familiarising yourself with several legal aspects. In Poland, the landlord has the right to modernise the property, but there are several considerations to keep in mind. First, if the apartment is currently tenanted, the installation should be agreed upon with the tenant — ideally through a written addendum to the lease agreement. Second, in multi-family buildings with central heating, installing thermostats on radiators may require compliance with the housing community regulations.

It is also advisable to address responsibility for the device in the lease agreement. The Brokik platform makes it easy to manage rental documentation, including creating addenda that account for additional property equipment. This ensures that both the landlord and tenant have clarity regarding their rights and obligations related to smart devices.

Popular Thermostat Models on the Market in 2026

The smart thermostat market is evolving rapidly. Here are some device categories worth considering:

• Wall-mounted thermostats with touchscreens — ideal for apartments with individual gas or electric heating. They offer intuitive controls and an attractive design.
• Smart radiator valve heads — the best choice for apartments with central heating. Easy to install with no need to modify the heating system.
• Zone thermostats — allow independent temperature control in individual rooms, maximising savings.
• Thermostats with air quality sensors — in addition to temperature regulation, they monitor humidity and air quality, which is particularly useful in older buildings.

When selecting a thermostat for a rental apartment, prioritise ease of use, compatibility with the existing heating system, and remote management capabilities. Not every tenant is a technology enthusiast, so an intuitive interface is essential.

Installation and Configuration — Step by Step

The installation process for a smart thermostat depends on the device type and the apartment's heating system. For smart radiator valve heads, installation is usually straightforward and requires no specialist tools — simply unscrew the old head and replace it with the new one. Wall-mounted thermostats may require connection to the electrical system, which should be carried out by a qualified electrician.

After physical installation, the device needs to be configured:

• Connect the thermostat to the Wi-Fi network
• Install the mobile app and create an account
• Set a basic heating schedule
• Configure occupancy sensors (if available)
• Set temperature limits — minimum and maximum
• Enable notifications for unusual readings

It is worthwhile to prepare a brief instruction manual for the tenant and include information about the thermostat in the handover protocol. The Brokik platform allows you to attach technical documentation to protocols, making it easier to pass information to subsequent tenants.

Real Savings — Sample Calculations

To better illustrate the potential savings, let us analyse some example scenarios for a typical 50 m² apartment in a Polish city. With average heating costs of PLN 250–400 per month during the heating season (October–April), a smart thermostat can deliver the following savings:

• Scenario 1 — schedule optimisation: Automatically lowering the temperature by 3°C during the tenant's working hours (8:00–17:00). Potential saving: 15–20%, approximately PLN 40–80 per month.
• Scenario 2 — geofencing and occupancy sensors: The thermostat detects an empty apartment and lowers the temperature to an economy level. Potential saving: 20–25%, approximately PLN 50–100 per month.
• Scenario 3 — full AI optimisation: An advanced thermostat that learns residents' habits, takes weather forecasts and building insulation into account. Potential saving: 25–30%, approximately PLN 60–120 per month.

Considering that a smart radiator valve head costs between PLN 200 and 500 per unit, the investment typically pays for itself within one heating season. For more expensive wall-mounted thermostats (PLN 600–1,200), the payback period is around two seasons.

Managing Thermostats Across Multiple Apartments

Landlords managing several rental apartments can particularly appreciate the ability to remotely monitor temperatures in all their properties from a single app. This is especially useful during vacancy periods when an apartment is unoccupied — maintaining a minimum temperature prevents moisture and damage to the plumbing system.

To efficiently manage multiple properties equipped with smart thermostats, it is worth using a rental management platform such as Brokik. With it, you can monitor the technical condition of apartments, maintain equipment documentation, and track utility costs in one place. A comprehensive management approach — combining temperature control with payment and documentation oversight — significantly simplifies daily work for landlords.

Challenges and Potential Issues

Despite numerous advantages, installing smart thermostats in rental apartments comes with certain challenges worth knowing about:

• Wi-Fi compatibility — thermostats require a stable internet connection. If the tenant changes the router password or the internet goes down, the device may not function properly.
• Tenant resistance — some tenants may be reluctant to adopt new technologies or fear that the landlord is monitoring their behaviour.
• Battery costs — battery-powered smart radiator valve heads require replacement every 1–2 years.
• Software updates — manufacturers may discontinue support for older models, potentially requiring device replacement.

Transparent communication with tenants is key. It is worth explaining what data the thermostat collects and reassuring them that the device is used solely to optimise heating costs, not to monitor occupant presence.

Summary

Smart thermostats are one of the best investments a rental property owner can make in terms of energy savings. At a relatively low purchase cost, they offer measurable savings on heating bills, increase the appeal of rental listings, and help protect the property from damage related to improper temperatures.

The key to success is selecting the right device, ensuring proper installation, and maintaining clear communication with tenants. Combined with a professional rental management platform like Brokik, smart thermostats become part of a comprehensive, modern approach to rental property management — one that combines technology with efficiency and care for the comfort of all parties involved.