Choose a new Vaillant boiler. And cut down on gas bills.
Signs that it’s time to upgrade your heating system.
When your heating system starts showing its age, it might be time for a change to an efficient and reliable Vaillant gas boiler that stands the test of time. Keep an eye out for signs of aging such as poor energy efficiency due to outdated heating technology, high heating costs, occasional failures, and fluctuations in heating temperature or in the shower.
Besides switching to a new Vaillant gas condensing boiler, modernising with a heat pump can be another option for maximum heating efficiency and lasting comfort.
Benefit from advanced condensing technology.
Switching from a non-condensing to a condensing boiler can significantly boost energy efficiency.
Non-condensing boilers release unused heat through the flue, whereas condensing boilers capture and recycle this heat, utilising up to 96 percent of the energy burned compared to 86 percent in non-condensing systems. This improvement translates into immediate savings on your energy bills, making your heating system more efficient and environmentally friendly.
Advantages of your new Vaillant gas boiler
Choose the Vaillant amongst boilers.
- Reduce your running costs.
Upgrade to a new condensing gas boiler that operates more efficiently than old heating systems, will help you reduce your gas consumption by around ten percent.*.
- Adaptable heating for new gas solutions.
Choose Vaillant condensing gas boilers that work with bio-natural gas or bio-LPG. Some can even be converted to run on 100 percent green hydrogen, ensuring sustainable and long-term operation.
- Smart control for your heating.
Benefit from convenient app-based heating control and integrate your device into smart home systems. Keep an eye on your heating operation anytime, anywhere.
- A heating system ready for future enhancements.
Start with a new gas appliance and expand it to a future-proof hybrid system e.g. by adding a heat pump whenever you want. Modernise your home step by step.
Gas heating from Vaillant
The pioneer of gas heating
Since 1874, Vaillant has stood for the highest quality, shaping the heating market with over 150 years of experience. From revolutionising bathrooms in 1894 with the first closed-system gas water heater to introducing efficient condensing gas boilers over thirty years ago, we continuously advance this technology. Today, all Vaillant gas heating systems can sustainably operate with green gases.
Reliable heating solutions for modern homes
Vaillant has the right boiler for every situation.
- 1/5Wall-hung boiler gas, condensing, combiecoTEC plusIdeally suitable for replacements in existing buildings.Get more details
Ideally suitable for replacements in existing buildings.
- Automatic adaption to fluctuating gas types and qualities
- Future-proof sustainability ready for up to 20% of hydrogen
- Extendable with renewables like solar, thermal, or photovoltaics for even more efficient heating
- Easily connected to myVAILLANT connect internet gateway via plug and play for smart heating
- Handy monitoring with our new design and operating concept
Especially in existing buildings with gas grid connections, our ecoTEC plus boilers are a swift and the most popular solution to replace old gas boilers ecologically and efficiently: Made of a material that's 80% recyclable, they're easily installed using the given connections, provide reliable quality and can even utilise up to 20% of hydrogen for outputs of 10-30 kW – making it a future-proof choice that can reduce consumption and operating costs.
- 2/5Wall-Hung Boiler Gas, Condensing, CombiecoTEC introWall mounted gas condensing combi boiler for heating and hot water.Get more details
Wall mounted gas condensing combi boiler for heating and hot water.
- Meets essentials needs of heating and hot water comfort
- Ideal replacement solution for old boilers
- Compact dimensions and minimalistic design
- High energy efficiency offered by the condensing technology
- High quality at a reasonable price
The ecoTEC intro is a gas condensing boiler that combines heating and hot water in one device. It is one of the smallest and lightest wall-mounted gas condensing boilers in the market and the perfect solution for an apartment size of approx. 80 m2. The LED boiler display and the touch buttons allows you to easily adjust your heating profiles or set the temperature to your liking. It offers high quality at an attractive price. Operating costs are low, as it uses up to 30% less energy than older heating systems.
- 3/5Wall-Hung Boiler Gas, Condensing, CombiecoTEC proThe gas condensing boiler for heating and hot water.Get more details
Wall mounted gas condensing combi boiler for heating and hot water.
- Combination boiler for small-to-medium homes
- Precise heating and instant hot water
- One of the quietest products in its category
- Can be combined with a full range of thermostat controls
- Bright and easy-to-use display
Our smart combination boiler ecoTEC pro is the ideal solution for small-to-medium homes that need instant hot water, but don’t need a water tank. It can adapt itself to give you only the heating you require, lowering your fuel bills. And premium parts like the stainless-steel heat exchanger keeps everything running smoothly and reliably. With the easy-to-use and back-light control display operating the boiler is a doddle.
- 4/5Wall-Hung Boiler Gas, Condensing, CombiecoTEC pureThe gas condensing boiler for modernization.Get more details
The gas condensing boiler for modernization.
- Ideal and simple solution for replacing your old boiler
- Small dimensions: can be integrated into kitchen cupboards
- With digital temperature display easy to operate
- Low investment and operating costs
- Combination with integrated hot water preparation available
Our wall-mounted ecoTEC pure gas condensing boiler is the perfect choice for an economical replacement of an old appliance - in flats and apartment buildings. The modern gas condensing boiler saves up to 30% energy costs and emissions compared to older boilers. With its compact design it requires only 0.32 sqm of wall space and fits into any niche. And due to its intuitive display, which is integrated in the unit room, temperature is very easy to control.
- 5/5Wall-Hung Boiler Gas, Condensing, CombiecoTEC exclusiveSustainable comfort: Premium gas condensing replacement in existing single-family homes.Get more details
Sustainable comfort: Premium gas condensing replacement in existing single-family homes.
- Automatic adaption to fluctuating gas types and qualities
- Future-proof sustainability ready for up to 20% of hydrogen
- Handy monitoring via integrated touch display and app
- Smart navigation through consistent interface design with touch elements
- Combinable with many extensions to optimise comfort and efficiency
Efficient operation with optimised comfort thanks to smart technology: This makes our ecoTEC exclusive the ideal boiler replacement in existing, digitally aligned single-family homes connected to the gas grid: They offer the highest product quality, can be conveniently controlled via sensoApp, are made of a material that is 80% recyclable and can use up to 20% hydrogen with outputs of 15-30 kW.
The replacement process
Three steps to your efficient Vaillant heating.
- 1/3
Get in touch with your installer to find the best-suited model from our gas boiler range based on your living space as well as heating and hot water demands.
- 2/3
Your local Vaillant installer provides you with an offer including your specific components and installation costs.
- 3/3
Your local Vaillant partner installs your new gas boiler and takes care of your old one.
Modernise with a heat pump
... or a heat pump after all?
Replacing a gas heating system is an easy way to modernise your heating system without a great deal of effort. However, if you want to future-proof your home directly and use renewable energies to become more independent and sustainable, then switching to a heat pump could be an option for you.
Heat pumps are generally suitable for all homes built from 1980 onwards and for older, partially renovated buildings with a good energy standard.
Find out more about switching to a heat pump.
Frequently asked questions
Still have questions? We have the answers.
In relation to the adjusted efficiency, this is approx. 86% for a gas non-condensing boiler and approx. 96% for a gas condensing boiler, which corresponds to a difference of 10% less gas consumption; higher efficiencies are also possible under good system conditions