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The best vaillant combi boilers in comparison

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Smart Thermostat for Combi Boiler/Water Underfloor Heating, WiFi Thermostat Works with Apple HomeKit Siri, Alexa, Google Home, Wired Installation, Support Remote Smart Heating Control

Refoss

25% off

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9,9

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Smart Thermostat Control The WiFi heating thermostat is compatible with most boiler water underfloor heating systems. You can control the heating remotely using the free app Refoss or voice control, which is compatible with Apple HomeKit Siri, Amazon Alexa (Echo, Echo Dot), Google Home, or manual touchscreen control. Only 2.4GHz WiFi is supported, and no Hub is required.
Open Window Detection Function Save energy and reduce electricity bills! When a window is detected as open, the smart thermostat will automatically shut down for 30 minutes to avoid energy waste. The app will also send you notifications to remind you when the window is open.
Dual Temperature Sensor To accurately sense the room temperature for maximum home comfort, we utilize an internal sensor to detect air temperature and an external sensor wire to measure the floor temperature as needed (installing the external sensor wire is necessary for external sensing). You can switch between the sensors based on different scenarios to better control the heat while preventing overheating. Temperature control range 5-35 C; Measurement temperature accuracy 0.1 C.
Schedule and Multi-room Control You can add and delete scheduling functions, supporting up to 8 events per day. The thermostat allows for a 24 7 schedule for different rooms. Multiple Alexa thermostats can be used to control different rooms. The heating system turns on and adjusts the temperature automatically when you re at home and turns off automatically when you go out, based on the schedule you set.
Add Summer Mode Function The summer mode function can be utilized for cooling during the summer and necessitates a cooling-compatible system, such as an air-to-air heat pump system. Please note that certain features mentioned require the latest version of the app. Ensure that you update both your app and firmware. The iOS version has already been released, and the Android version will be available soon.

Recommendation

Vaillant EcoTEC Pro 24 28 / Plus 612 615 618 624 630 637 824 831 837 937 PCB 0010028086 0020254533 (Post 2012) Genuine Part

Vaillant

9% off

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Fits Vaillant EcoTEC Models 2012 Onwards
Part number 0010028086
Always ensure a qualified engineer maintains your appliances on a regular basis

£ 172.98

£ 190.00

£ 254.40

HTS - Vaillant Boiler Plate Heat Exchanger (35 Pl) 0020025041

HTS

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9,5

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12-Month Warranty Comes with a 12-month warranty for added peace of mind and product reliability assurance.
Reliable Performance Guarantees consistent heating efficiency, reducing energy consumption over time.

VAILLANT ECOTEC PLUS VU 612 615 618 624 630 637 EXPANSION VESSEL 181051

Vaillant

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9,5

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Brand Vaillant
Product type VALVE

£ 42.72

£ 48.00

Vaillant Ecotec Pro 24 28 Pump Head Only 178983 &193534-15/50W for Vaillant Ecotec Pro 24 28

Aspares

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9,5

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Vaillant TURBOmax PLUS 824 E Vaillant TURBOmax PLUS 828 E Vaillant VU 05 02 0152 (2001-2002) Vaillant THERMOcompact 615 E Vaillant THERMOcompact 620 E Vaillant THERMOcompact 624 E Vaillant THERMOcompact 628 E (2002-2003)

Vaillant 0020056561 - Display VAI0020056561

Boiler-Fans.com

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9,4

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HTS - Vaillant Boiler Service Kit Electrode & Gasket 0020133816 0020038679 0020025929

HTS

10% off

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9,3

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Features

Prevents Boiler Lockouts & Ignition Failures Ensuring your boiler ignites reliably every time, this service kit helps reduce the risk of ignition failures that could lead to heating disruptions.
Improves Boiler Safety & Longevity By replacing worn-out electrodes and gaskets, this kit helps ensure safe operation and extends the lifespan of your boiler system, preventing potential gas leaks or inefficiencies.
OEM-Quality Replacement Parts Manufactured to meet or exceed original manufacturer standards, ensuring precise fitment and long-lasting performance in Vaillant boilers.
Minimizes Risk of Carbon Build-Up The high-quality electrodes work efficiently to prevent excessive carbon deposits, which can negatively impact boiler performance and lead to costly repairs.

Vaillant 20219517 Horizontal Flue Kit, White

Vaillant

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9,3

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Quick and easy to install
Made of premium quality material

£ 150.00

£ 119.99

Vaillant Eco Tech Plus 824 831 837 937 Diverter Valve 0020132682 0020132683

Aspares

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9,3

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VAILLANT ECOTEC PLUS 824 831 837 937 DIVERTER VALVE 0020132682 0020132683 ( NEW COMPATIBLE )

HTS Boiler Expansion Vessel Compatible with Main Combi 25 ECO & 25 ECO Elite Expansion Vessel 8 Litre 5114691 & Pressure Relief Valve 248056

HTS

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9,3

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Features

Perfect Compatibility Specifically designed for Main Combi 25 ECO and 25 ECO Elite models, replacing part numbers 5114691 and 248056.
12-Month Warranty Backed by a full 12-month warranty for confidence in product quality and peace of mind.
Enhanced Safety Includes a pressure relief valve to release excess pressure, protecting your boiler from potential damage.
Built to Last Manufactured from durable, high-quality materials to ensure long-lasting performance and reliability.

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.