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The best vaillant combi boilers in comparison

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Last updated on 22.05.2025

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Vaillant Atmomag Water Heater, 10022573

Vaillant

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9,9

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Natural Drawing
14 litres min

Hive Thermostat for Heating and Hot Water Control (Conventional Boiler) without Hive Hub, White

Hive

15% off

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9,8

Offer ends in:

05Days

14hours

24minutes

34seconds

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Features

HIVE Plus 50% off annual plan included with this purchase to help you save even more
Geolocation heating alerts when you leave or return home
Hive Hub is needed for remote or app control of heating

£ 101.15

£ 49.49

Recommendation

SHU 5 SL GB Set AX undersink point of use water heater

Stiebel Eltron

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9,7

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Unvented undersink water heater for one or several draw-off points
Standard temperature and pressure relief valve
The SHU 5 SL GB Set AX must be connected by a suitably qualified installer!

HTS Boiler 3-Way Diverter Valve - Fits Glowworm & Vaillant (0020097214/0020213146)

HTS

3% off

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9,6

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Features

Broad Compatibility Fits Glowworm and Vaillant boilers, making it a versatile replacement option.
Part Numbers Compatible with 0020097214 and 0020213146, ensuring a perfect fit for your system.
Efficient Water Flow Control Regulates the flow of hot water, directing it between the heating circuit and domestic hot water supply, preventing system malfunctions and ensuring optimal performance.
Durable Construction Made from high-quality materials designed to withstand the demands of your heating system for long-lasting reliability.
12-Month Warranty Comes with a 12-month warranty, offering peace of mind and confidence in your purchase.

Vaillant PCB EcoTec Plus

Vaillant

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9,5

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£ 188.88

£ 40.99

Honeywell Y4H910RF4003 T4R 7 Day Wireless Programmable Thermostat , 230 V, White

Honeywell

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9,5

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A 30m range is possible between the thermostat and receiver box thanks to wireless communication. The connection is already established so no set up is required.
Automatic time change for summer and winter.
Easy to use push button access to the configuration menus.

£ 113.49

£ 80.00

VELPAX Gas Water Heater,Outdoor Instant Water Heater,16L Camping Water Heater with Digital Display and Multi-Protection for Indoor Shower,Kitchenette,Laundry Room,Courtyards,Outdoor Showe

VELPAX

9% off

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9,4

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Multi-functional water heater -This water heater comes with, gas control centre, seasonal control centre,Water control centre and temperature display, continuous hot water supply, water and gas can be adjusted individually, suitable for indoor and outdoor, energy saving and more safety protection.
Safer -He has it with a variety of protection configurations, such as flame protection, overheating protection, 20-minute safety cut-off protection, which can improve the safety of the family and extend the life of the water heater.
Product Specifications -16L camping water heate Length 13.4 inches, Width 6.3 inches 16 cm, Height 23.2 inches 59 cm, Capacity 16 litres, Ignition Automatic ignition
ower Noise -Outdoor Instant Water Heater has stable hot water temperature, low noise, comfortable bathing in all seasons, and the running sound is 48 decibels, which will not disturb you and your family's rest.
WIDELY USED - portable water heater is widely used in outdoor shower, indoor shower, kitchen, laundry room, patio and other scenarios, both outdoor and indoor, which brings great convenience to our life.

COMPUTHERM Q7RF Wireless Programmable Room Thermostat, Temperature Thermometer, Portable Thermostat, Economy & Comfort Mode

COMPUTHERM

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9,4

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Programmable & individual The wall thermostat allows 6 freely selectable and independent switching times for each day of the week as well as a holiday program for personalized & automatic temperature adjustment own heating program , whereby it is determined when the respective desired temperature should be implemented at different times of the day.
Desired temperature The temperature controller on the room thermostat makes it easy to set the desired temperature between 5 and 40 C in increments of 0.5 C the thermostat also has a pump protection function for the heating free season.
Exact temperature setting & display The digital display is illuminated in a modern blue, on which the thermometer reliably shows the set desired and current room temperature, as well as the time and date much more precise measuring and setting than with traditional thermostats and can be used for both cooling and heating.
Constant indoor room temperature The digital thermostat includes a switching sensitivity of either 0.3 0.2 or 0.1 degrees and thus enables a uniform and constant room temperature thanks to the combination of wireless and mobile room thermostat and receiver, the temperature can also be adjusted when changing rooms.

Weytoll Mini Instant Water Heater, 220V 3000W Electric Tankless Hot Water Heater With LCD Display for Shower, Bathroom, Kitchen Washing

Weytoll

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9,4

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ABS construction with mini design, it is durable, elegant and fashionable.
This is a water heater for the application of changing the cold water into hot water and it will meet your various needs such as used in kitchen, bath room, public restroom, etc.

Vaillant timeSWITCH 150, Plastic, White

Vaillant

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9,2

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Time periods as short as 15 minutes to give complete and flexible control of your time programs.
Flexible programming with the ability to set up to 48 heating on off times

£ 70.00

£ 55.00

£ 95.00

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.

You might also be interested in these vaillant combi boilers.

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

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.

~~£ 58.99~~ free shipping

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Vaillant 20219517 Horizontal Flue Kit, White

Quick and easy to install

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Vaillant 0020056561 - Display VAI0020056561

Boiler-Fans.com

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

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

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

12-Month Warranty Comes with a 12-month warranty for added peace of mind and product reliability assurance.

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

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)

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Vaillant Pump VP5 160928

Genuine Part

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

Perfect Compatibility Specifically designed for Main Combi 25 ECO and 25 ECO Elite models, replacing part numbers 5114691 and 248056.

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VAILLANT ECOFIT Pure 825 830 & 835 Combi VUW Boiler PCB 0020195589 was 0020273087

Vaillant

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

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.

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

Brand Vaillant

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VAILLANT TURBOMAX Plus & ECOMAX 824E 828E 824/2 828/2 E TIME Switch 110 306741

Vaillant Turbomax Plus & Ecomax 824E 828E 824 2 828 2 E TIME Switch 110 306741

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The best vaillant combi boilers in comparison

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Features

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