How much does a thermostat cost?

Thermostats come in various designs: from simple on/off models to smart, self-learning systems. The price depends on the technology, functionality, and required installation. Below is an overview of the most common thermostats in 2025.

1. Standard On/Off Thermostat

Description:
A simple thermostat that switches the boiler on or off. Limited functions, suitable for older or simpler boilers.

• Purchase price: €70 – €110
• Installation costs: €65 – €80
• Total costs including installation: €135 – €190
• Application: Basic control, usually without a timer program

2. Modulating Thermostat (OpenTherm)

Description:
Gradually controls the boiler based on heat demand. Ensures more efficient heating and a more constant indoor climate.

• Purchase price: €150 – €200
• Installation costs: €250 – €350
• Total costs including installation: €400 – €550
• Application: Suitable for modern HR boilers with OpenTherm protocol

3. Smart Thermostat

Description:
Connects to Wi-Fi, learns from your lifestyle and adjusts automatically. Control possible via app, voice assistant or geofencing.

• Purchase price: €150 – €260
• Installation costs: €250 – €350
• Total costs including installation: €400 – €610
• Application: Comfort-oriented users and energy-conscious households

Examples: Google Nest, Tado, Honeywell Evohome, Bosch EasyControl

Important Points

• Not every boiler supports modulating or smart thermostats. Have this checked in advance by a certified installer.
• Smart thermostats can achieve savings of up to 10–15% on gas consumption, provided they are used correctly.
• When replacing the boiler, it is advisable to have a suitable thermostat installed at the same time to avoid double costs.

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Do you want to know which thermostat best suits your boiler and situation? Via jeofferte.nl you will receive multiple quotes from certified installers free of charge. Including advice on compatibility, installation and savings opportunities.

A thermostat is essential for efficient and comfortable control of your heating system. In 2025, various types are available, from simple clock thermostats to advanced smart models. The choice of a particular type depends on your boiler, comfort requirements and energy consumption goals.

1. On/off thermostat (standard or clock model)

Description:
The simplest thermostat switches the boiler on or off based on the desired temperature. A clock model can program time settings per day or week.

Application:
Basic control, suitable for simple central heating boilers without modulating control.

Characteristics:

• No modulating effect
• Limited energy saving
• Low purchase and installation costs

Indicative costs (including installation and VAT):

• €135 – €190

2. Modulating Thermostat (e.g. OpenTherm)

Description:
Gradually controls the boiler instead of just on/off. This makes the temperature more constant and the gas consumption lower. Often compatible with OpenTherm boilers.

Application:
Modern HR or hybrid boilers that support modulation.

Features:

• More constant indoor climate
• More energy-efficient than standard thermostats
• No internet connection or app required

Indicative costs (including installation and VAT):

• €400 – €550

3. Smart Thermostat

Description:
An internet-connected thermostat that can be controlled via app, voice control, or geofencing. Some models are self-learning or can control zones.

Application:
Households with comfort wishes, energy control, or smart home integration.

Features:

• Remote control via smartphone
• Insight into consumption and energy reporting
• Automatic adjustment to living behavior
• Compatible with modulating boilers (e.g. via OpenTherm)

Examples:
Tado, Google Nest, Honeywell Evohome, Netatmo, Bosch EasyControl

Indicative costs (including installation and VAT):

• €400 – €610

4. Smart zone system (multiple room controls)

Description:
Advanced variant of a smart thermostat, with adjustable zones or room thermostats. Each room gets its own temperature control.

Application:
Large homes, new construction, homes with underfloor heating or multiple floors.

Features:

• Individual temperature control per room or zone
• Optimal comfort distribution
• More complex installation and higher investment

Indicative costs (including installation and VAT):

• €700 – €1.200
  (depending on number of zones, brand and installation complexity)

Thermostat Comparison Table (2025)

Advice via jeofferte.nl

Not sure which thermostat best suits your boiler or living situation? Via jeofferte.nl you will receive non-binding quotes and advice from certified installers. They help you with:

• Compatibility check with your boiler
• Installation of the correct thermostat
• Insight into energy savings and payback period

The total price of a new central heating system consists of several components. For a transparent comparison of quotes, it is important to understand the cost structure. The following overview provides insight into the fixed and variable parts of the investment.

1. Purchase costs of the boiler

This is the basic price of the boiler itself, excluding installation. The price depends on the brand, type, capacity and CW class.

2. Installation costs

The installation costs cover labor, required materials, dismantling of the old boiler and connection of the new installation. These costs vary per situation.

3. Extra components (optional)

Certain extensions are not standard, but are regularly recommended or requested.

4. Maintenance costs (annually)

After installation, there are recurring costs for periodic maintenance. This is important for safety, efficiency and maintaining the warranty.

5. Subsidy (if applicable)

An ISDE subsidy applies to hybrid heat pumps and all-electric systems in 2025. This subsidy will be paid out after installation via the RVO.

Example cost structure (hybrid boiler, average home)

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A good quote always shows a clear cost structure. Via jeofferte.nl you will receive several non-binding quotes from certified installers. All price quotations are transparently structured, including labor, materials, VAT and any subsidy options.

When replacing or purchasing a central heating system, prices can vary considerably. This is due to a combination of technical, housing-related and choice-dependent factors. A transparent insight into the price structure helps in making a well-considered choice.

1. Type and power of the boiler

• The more powerful the boiler (higher kW), the more expensive it usually is.
• HRe boilers and hybrid systems are more expensive than standard HR boilers.
• The required power depends on the size of the house, insulation and heat demand.

2. CW class (hot water capacity)

• A higher CW class (e.g. CW5 or CW6) offers more comfort, but also increases the price.
• Not every home needs a high CW class; too high a class does not provide any extra benefit, but does result in higher costs.

3. Complexity of the installation

• Difficult to access boiler setups (e.g. in the attic without loft ladder) or outdated pipes increase labor costs.
• Replacement of the flue gas discharge system is often mandatory and can cost several hundred euros.

4. With or without extra facilities

• Options such as a smart thermostat, dirt filter, boiler, underfloor heating or extra radiators entail additional costs.
• These extensions increase comfort, but are not always necessary.

5. Type of house and year of construction

• Older or poorly insulated homes often require a more powerful boiler or additional adjustments.
• New construction or well-insulated homes can often suffice with a lighter boiler or hybrid system.

6. Electrical Adjustments

• A hybrid system or heat pump may require an extra group in the meter cupboard or adjustments to the electrics.
• These costs are usually between €200 and €350.

7. Thermostat and control

• The choice between a simple on/off thermostat, a modulating model or a smart thermostat affects the total price.
• Smart systems including installation cost an average of €400 – €600.

8. Maintenance and service

• Some installers offer a discount when taking out a maintenance contract.
• The choice for all-in service, with breakdown cover, entails higher fixed costs, but avoids unexpected costs.

9. Subsidy and tax regulations

• Hybrid boilers and all-electric heat pumps will be eligible for ISDE subsidies in 2025.
• The subsidy will be settled after installation, but significantly reduces the net investment costs.

10. Regional price differences and installation capacity

• Labor and call-out charges vary per region.
• In busy periods (e.g. winter months), rates may increase due to limited availability of installers.

Advice via jeofferte.nl

Curious about the exact costs in your situation? Via jeofferte.nl you will receive several non-binding quotes from recognized installers. You get insight into:

• Boiler prices and installation costs
• Required adjustments and options
• Possible subsidy options
• Transparent comparison of providers

Smart handling of your central heating system can save hundreds of euros annually on energy consumption and maintenance costs. The tips below will help you get the most out of your heating system, whether you have an existing installation or are purchasing a new boiler.

1. Choose the right boiler capacity and CW class

• Have the required output (in kW) calculated professionally. A boiler that is too powerful consumes unnecessary gas.
• Choose a CW class that matches your actual hot water needs. Too high a class is a waste of money and energy.

2. Combine with a modulating or smart thermostat

• A modulating thermostat controls the boiler more efficiently than a simple on/off thermostat.
• A smart thermostat with a timer program, geofencing, or self-learning behavior can save up to 15% on your heating costs.

3. Insulate cost-effectively where it pays off

• Cavity wall insulation, floor insulation and HR++ glass provide direct returns for central heating systems.
• An insulated home uses less gas, meaning you can also get by with a less powerful boiler.

4. Consider a hybrid heat pump

• A hybrid boiler uses up to 60% less gas, especially at mild outdoor temperatures.
• Thanks to ISDE subsidies, the payback period in 2025 is often 5–8 years, depending on consumption and home type.

5. Have your installation hydraulically balanced

• Hydraulic balancing optimizes heat distribution per radiator.
• This prevents overheating and cold spots and saves up to 10% energy.

6. Install a dirt filter or an air/sludge separator

• Magnetite and dirt particles cause efficiency loss and malfunctions.
• A dirt separator costing €150–€250 extends the boiler's lifespan and reduces maintenance costs.

7. Lower the supply temperature

• Set the central heating boiler to 55–60 °C instead of the standard 80 °C.
• A lower temperature increases the efficiency of condensing boilers and is better suited for underfloor heating and low-temperature radiators.

8. Conclude a suitable maintenance contract

• Regular maintenance prevents malfunctions, increases efficiency, and extends the service life.
• An all-in maintenance contract (from €150 per year) prevents unexpected costs in case of defects.

9. Benefit from subsidy

• For hybrid and all-electric systems, ISDE subsidy is available up to €3,000, depending on the device.
• If necessary, have the application submitted by your installer via jeofferte.nl.

10. Request multiple quotes

• Price differences between installers can amount to hundreds of euros.
• Request multiple quotes via jeofferte.nl and compare prices, content, and conditions.

Free advice via jeofferte.nl

Want to know how you can save structurally on heating, energy, and maintenance? Via jeofferte.nl, you will receive no-obligation quotes and savings advice from recognized installers. This way, you can discover what yields the most return in your home – without unnecessary costs.

A modern thermostat – whether it's a modulating or smart variant – offers significantly more comfort, control and energy efficiency than a traditional on/off thermostat. Especially in combination with a modern high-efficiency or hybrid boiler, this optimizes the heating system.

1. More efficient energy consumption

• Modulating thermostats better match the heat output to the actual need. Instead of turning the boiler completely on or off each time, the power is gradually adjusted.
• This makes the boiler run more smoothly, resulting in less gas consumption and a higher yield.

2. Lower heating costs

• By heating more efficiently, a modern thermostat saves up to 10 to 15% on annual gas costs.
• Smart thermostats recognize living patterns and automatically switch back in the absence or at night.

3. More comfort in the house

• The temperature remains more stable thanks to continuous adjustment. This prevents large temperature fluctuations.
• With smart variants, you can set zones per room, which provides extra comfort in, for example, offices or bedrooms.

4. Operation remotely

• Smart thermostats can be operated remotely via app or web interface. You can turn on the heating before you get home, or turn it off if you are unexpectedly absent.
• This increases control and prevents unnecessary consumption.

5. Automated programming

• Preset weekly programs ensure heating at fixed times, without you having to check it daily.
• Smart models learn from your behavior and adapt the program automatically.

6. Insight into consumption

• Many modern thermostats provide insight into consumption data via the app or display.
• You can quickly detect deviations or waste and adjust your behavior accordingly.

7. Compatibility with sustainable installations

• Modulating thermostats (e.g. OpenTherm) are necessary to get the maximum efficiency from a high-efficiency or hybrid boiler.
• Smart systems can also work with heat pumps, solar water heaters and ventilation systems.

8. Suitable for future upgrades

• Modern thermostats are prepared for expansion with zone systems, smart home integrations or connection to other energy applications.
• This makes the installation future-proof.

Advice via jeofferte.nl

Curious which thermostat is suitable for your home and central heating system? Via jeofferte.nl you will receive free quotations and expert advice on the possibilities. You can choose from several brands and models, including installation by certified technicians.

A smart thermostat is more than just a modern alternative to the classic temperature controller. It is an advanced device that automatically responds to your lifestyle, optimizes energy consumption and increases the efficiency of your heating system. In 2025 it is a popular and proven way to reduce energy costs – especially in combination with a high-efficiency boiler or hybrid system.

What is a smart thermostat?

A smart thermostat is an internet-connected thermostat that:

• Can be operated remotely via smartphone or tablet
• Executes automated programs based on time, presence or behavior
• Is sometimes self-learning and adapts to your usage pattern
• Provides reports on energy consumption and savings opportunities
• Is compatible with voice assistants (such as Google Assistant or Alexa)

Examples of well-known models are: Tado, Honeywell Evohome, Google Nest, Bosch EasyControl and Netatmo.

How does a smart thermostat save energy?

A smart thermostat helps save energy by:

• Automatically turn off the heating when nobody is home (geofencing)
• Only heat the house when it is really necessary
• Gradually lower the temperature at night or when absent
• Provide insight into heating behavior and prevent waste
• Allow the boiler to modulate more efficiently in modulating systems

Savings potential

Depending on your home type, heating system and behavior, you can save an average of 6% to 15% on your annual gas consumption with a smart thermostat.

* Based on an average gas price of €1.30 per m³ (2025).

Purchase costs and payback period

The costs of a smart thermostat including installation are on average between €400 and €600. This includes the device, installation, connection to the central heating boiler and any app configuration.

Payback period: on average 2 to 4 years, depending on the home, consumption and behavior.

Compatibility and Considerations

• Not all central heating boilers are compatible with modulating or smart thermostats. Have this checked in advance.
• For maximum efficiency, combination with a high-efficiency condensing or hybrid boiler is recommended.
• For zone heating (different temperatures per room), extra extensions are required.

Tailored advice via jeofferte.nl

Want to know which smart thermostat suits your boiler and home, and what your savings potential is? Via jeofferte.nl you will receive several non-binding offers from recognized installers. Including advice on:

• Thermostat selection and compatibility
• Installation and app configuration
• Customized savings calculation

Regular maintenance of your central heating boiler is essential for safe operation, optimal performance and a longer lifespan. In 2025, it will also be legally required that maintenance is carried out by a competent and CO-certified installer.

Why maintenance is important

• Prevents malfunctions and expensive repairs
• Reduces energy consumption (up to 5% more efficient)
• Extends the lifespan of the boiler (up to 15 years or longer)
• Required for warranty and insurance
• Mandatory for safety (CO certification)

Types of maintenance and costs

Prices include VAT and depend on boiler type, age and installer.

What is included in a maintenance service?

• Cleaning of burner, fan and heat exchanger
• Check for gas leakage and flue gas discharge
• Check on CO emissions and efficiency
• Refilling and bleeding the central heating system
• Adjustment to correct working pressure
• Possible software updates for modern boilers

Extra costs due to lack of contract

Without a contract, malfunctions or repairs can significantly increase in costs:

Advice via jeofferte.nl

Want to know which maintenance contract is suitable for your boiler or installation? Via jeofferte.nl you will receive several non-binding proposals from certified installers. You get a clear insight into:

• Annual maintenance costs
• Differences between individual services and contracts
• Fault handling and conditions
• Warranty retention and safety