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How To Comply With Boiler Plus

Boiler Plus regulations came into effect April 6th 2018, enforcing a number of minimum efficiency and utility functions on any new boiler installations in the United Kingdom. If you’re looking to update your heating system, or simply want to ensure you are receiving the best efficiency possible, we’ll help you understand the steps necessary to comply with the government regulation, as well as answer a number of questions frequently asked on the topic.

There are a number of ways you can comply with the Boiler Plus regulations. We have outlined the absolute requirements below:

  • Your heating system must meet or exceed an ErP (energy-related products) efficiency of 92% during operation
  • All installations must have time and temperature controls fitted, if they aren't already present and working correctly

Furthermore, all heating systems must be equipped with a minimum of one of the four following efficiency measures:

  • Load compensation - using internal temperatures against a set target temperature to adjust the amount of heating energy used
  • Weather compensation - the ability to adjust heating energy used based on external temperatures, rather than your home’s internal temperature
  • Smart control - An extended form of traditional thermostat controls that provide further functionality and customisation over your heating system’s operation
  • Passive Flue Gas Heat Recovery Device (PFGHRD) - captures typically expelled gasses and recirculates them for use within your system, generating additional heating energy

Any changes made to your heating system should be performed by a certified installer, as they will be able to effectively install, test the equipment and ensure your heating system meets the efficiency requirements set out by the legislation.

Frequently asked questions on Boiler Plus

Q. Do I need to upgrade my existing heating system after the 6th April 2018?

No, you do not need to do anything if you are happy with your current heating system. The regulations will only apply if you are installing a new boiler or heating system, in which case you will be required to comply.

Q. How will a control help me to increase the efficiency of my heating system?

Most homes do not require consistent heating, particularly during the night or period when the home is empty. Controls help to regulate a number of factors, such as heating temperature and times to turn the system on and off, resulting in improved efficiency. For additional information, read our page on heating controls.

Q. What if I don’t want a control?

Heating controls are designed to be easy and straightforward to use, with minimal disruption during installation. However, if you don’t wish to install a smart control in your home, there are other ways to comply with Boiler Plus.

Q. What is load compensation?

Load compensation is when the boiler modulates the amount of heating energy needed by your system by using the actual room temperature as a baseline, with the aim to heat to a specific set temperature. This ensures maximum efficiency.

Q. What is weather compensation?

This functions similarly to load compensation, however the modulation of the boiler’s performance is informed by the temperature outside of the property.

Q. What is Flue Gas Heat Recovery?

This is when flue gases (which are normally released and lost during operation) are captured by a Passive Flue Gas Heat Recovery Device and reused to provide further heating within the boiler. The ecoTEC exclusive with Green iQ has this built-in and is our first product which meets Boiler Plus regulations out of the box.

Q. Can I use non Vaillant controls with Vaillant products?

Whilst some non-Vaillant controls do work with Vaillant products, Vaillant controls have been specifically designed to work with Vaillant boilers. This ensures maximum efficiency and the most intelligent communication between boiler and control.

Q. Where can I find an installer that is aware of Boiler Plus?

Vaillant Advance installers have been provided with an in-depth overview of Boiler Plus, ensuring they provide specialist advice and guidance on upgrading your heating system accordingly. Find your local installer to check your heating system’s compliance.

Q. What happens if I have a system installed and choose not to comply with Boiler Plus regulations?

All certified installations of heating systems after April 6th 2018 must comply. All engineers will be vetted and monitored to ensure compliance. If you have non-compliant work undertaken, you will be in breach of the law and could be subject to fines and prosecution.

How to comply with Vaillant heating systems

If you’re using a Vaillant heating system, or are looking to upgrade to one, we have provided a number of ways to ensure you are compliant.

ecoTEC exclusive with Green iQMeets Boiler Plus out of the box

Vaillant’s flagship boiler, the ecoTEC exclusive with Green iQ meets Boiler Plus regulations out of the box, meaning that you do not need to add anything to it to comply once installed. It is fitted with a Passive Flue Gas Heat Recovery Device - one of the necessary functions to meet Boiler Plus standards.

VRT 50Meet Boiler Plus the easy way

Vaillant’s simple and straightforward digital room thermostat has a clear screen display; it measures and displays the room temperature. The control delivers enhanced load compensation features for optimised efficiency by fully modulating the boiler’s performance in relation to your set temperature.

The VRT 50 gets you to your desired room temperature with a simple turn of the dial. With the VRT 50, a time control will also be required – the perfect accompaniment is the timeSWITCH 150.

VRT 350(f)Meet Boiler Plus the effortless (and popular) way

Vaillant’s VRT 350 is the most popular intelligent programmable room thermostat in our range. It allows you to schedule times and temperatures from one wired or wireless device. The VRT 350 uses an intuitive and simple menu layout so times and temperatures can be changed with ease. Automatic enhanced load compensation adjusts the boilers output based on the room temperature.

vSMART - Meet Boiler Plus the efficient and smart way

The vSMART control utilises online weather data to decide the boiler output. A heat curve is set automatically during the initial few hours the boiler is running. The vSMART app, available on both iOS and Android, can be used by multiple users to control your heating wherever you are and whenever you wish.

As soon as vSMART is installed, it starts learning the thermal behaviour of the property immediately. This allows the vSMART to anticipate what time to bring the heating on to ensure your home is at your desired temperature when you arrive home.

VRC 700 - The most flexible way to meet boiler plus

Providing total system control, the VRC 700 is the most flexible programmable room thermostat in our range. It can be used from one to nine heating circuits. The VRC 700 comes as a wired or wireless thermostat, utilising an (included) outdoor temperature sensor. This allows for weather compensation by automatically adjusting the boiler output based on outside weather conditions. When paired with a VR 920 gateway, the VRC 700 app can be used to control the VRC 700 remotely from an iOS or Android smartphone.

We hope you have found this information useful. If you need additional information about your heating system, contact us or find a certified installer.