Like Worcester Bosch, Vaillant are one of the few premium brand boilers out there. Vaillant boilers offer the highest quality, reliability, and performance; this is why brand loyalty is such a big factor for Vaillant.
Regular winners of Which? Best Buy awards and holders of the Quiet Mark accreditation for their quiet-running boilers.
Vaillant offers a selection of combination, system, and regular boilers. If you aren’t sure what boiler type you have, then you can read our blog so you know what you’re looking for.
Once you know what boiler type you’re looking for, you can use the WarmZilla boiler comparison function below. Just select up to 3 boilers you want to compare and you’ll be able to compare key stats side by side to see which Vaillant boiler is best for you.
You can also take the WarmZilla survey, by answering a few simple questions about your home we will be able to recommend suitable boilers for your heating and hot water requirements. You can get a quote on a new boiler in just a few minutes without adding any personal details.
WarmZilla is proud to offer Vaillant boilers. Vaillant boilers meet our criteria of energy efficiency, performance, reliability, and aftercare.
WarmZilla offers a range of combi, system, and regular gas condensing boilers from Vaillant in a range of kW options to suit small flats, apartments, and any size home. We don’t sell commercial Vaillant boilers.
WarmZilla offers the Vaillant ecoTEC Pro and the ecoTEC Plus ranges in combi, system, and regular boiler types.
All Vaillant boilers sold by WarmZilla come with Gas Safe installation, system filter, system cleanse, inhibitor, wireless controls, up to 12 years guarantee, any flues or extension kits you may need; plus, if your condensate or gas pipes require upgrading – that’s included in your fixed price Vaillant boiler quote too!
You can also upgrade your wireless controls to a choice of smart thermostats and you can add radiators to your order – all your heating requirements with one easy online purchase.
Vaillant boilers from WarmZilla start from £1899 when purchased outright or £12.50 per month when buying your Vaillant boiler on finance.
Vaillant boiler prices vary depending on the model you choose and the kW output of the model you require. The Vaillant EcoTec Pro 24kW is our cheapest boiler, starting at £1899.
You can get a quote now and find out exactly how much your new Vaillant boiler will cost, in a few minutes using the WarmZilla online survey.
An annual boiler service can help you to avoid any issues that may arise when it comes to turning your central heating back on during the winter months.
A boiler is one of the most essential appliances in your home, which is why it’s important that it gets serviced regularly so that it remains efficient and safe to use in your home.
Your boiler service must be carried out by a qualified Gas Safe Engineer. They will look at the full list of boiler components and carry out the necessary tweaks, replacements, or cleaning needed.
The boiler checklist will include the following:
- Checking the flue system inside and outside the boiler
- Checking the boiler flame
- Removing the boiler casing to ensure that the burner, heat exchanger and spark electrode are working correctly
- Check the case seal is still effective
- Check the water-level control, low-water cut-off and safety valves are all in good condition
- Firing up the boiler to check for any possible faults
- Check that the expansion vessel is regulating the boiler pressure correctly
- Clean any necessary parts
Your installer should leave you with a comprehensive list of checks in the servicing and maintenance section of the installation manual.
Having an annual service not only keeps your boiler nice and healthy and extends its lifespan but also saves you money on unnecessary future repairs that may be needed.
On average, a boiler service costs between £70 and £120 depending on your provider. For a one-off cost, it is worth checking that your boiler is in good nick for the next 365 days.
This combi boiler’s smart technology features provides excellence in performance and reliability. The Vaillant EcoTec Exclusive Green IQ 835 manages the consumption and output to keep the components all running with its peak performance, making it a low-maintenance boiler that you can rely on.
In addition to this, the Green iQ 835 has an efficiency rating of 94% and an ErP A-rating for heating and hot water, which could help to reduce your energy bills depending on your current boiler’s efficiency rating.
The Vaillant EcoTec Exclusive Green iQ 835 has a central heating output of 26.4kW and a 35kW hot water output, making this combi gas boiler perfect for larger homes with up to 20 radiators and 1-2 bathrooms. However, if you feel that your home requires a higher demand, the Exclusive Green iQ 843 is available with a central heating output of 36kW and a hot water output of 43.3kW.
Combi boilers have become the most popular boiler type installed in homes across the U.K, this is because they are compact and do not require any additional tanks.
The Vaillant EcoTec Exclusive Green iQ 843 is the most powerful boiler manufactured by Vaillant, built with the power of green iQ technology. This boiler’s smart technology features provides excellence in performance and reliability. In addition to this, the Green iQ 843 has an efficiency rating of 94% and an ErP A-rating for heating and hot water, which could potentially help you to reduce your energy bills. This is helped by its extra-condense stainless steel heat exchanger.
The Vaillant EcoTec Exclusive Green iQ 843 has a central heating output of 36kW and hot water output of 43.3kW, making this combi gas boiler perfect for larger homes with up to 20 radiators and 2 bathrooms. However, if you feel that your home does not require this high of a demand for central heating or hot water, the Exclusive Green iQ 835 is available.
Combi boilers have become the most popular boiler type installed in smaller homes across the UK, this is because of their compact size, and because they don’t require additional cylinders or tanks.
Due to its combination of smart technology, great performance is guaranteed. This combi boiler is able to manage consumption and output keeping its components running at peak performance for longer, whilst providing a low maintenance solution and keeping your energy bills low.
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