Grant UK fully understand that some customers may have to self-isolate for a considerable period of time and as such, will not be able to have their Grant product serviced. We are therefore issuing the following guidance.
While it remains important for all appliances, cylinders, stores, tanks, fuel lines and ancillary components to be serviced annually, Grant UK will continue to honour all warranties (on both Standard and Extended) beyond the normal service date up to the 30th September 2020 whether the appliance is serviced or not. This extension relates to Grant oil boilers, Grant Biomass boilers, Grant Aerona Heat Pumps and Grant Cylinders/Thermal stores.
This date may change in line with the recommendations of the UK Government and current information can be found on our website here.
It is imperative that the appliance and connected components are serviced as quickly as possible after this date to ensure trouble free operation.
G1 is Grant UK's Installer Scheme. Heating engineers can become a G1 accredited installer in one or more of Grant’s product ranges, but each requires a specific set of requirements to be met before being accredited in that technology. For further information, please visit the G1 Scheme pages on our website or contact the G1 Team by emailing: G1@grantuk.com.
G-CERT is a scheme from Grant UK through which Grant can certify renewable installations for MCS accreditation on behalf of the installer. Under the G-CERT Scheme, engineers who meet the scheme’s criteria can install RHI eligible systems without needing to be MCS accredited. Click here for further information or alternatively, please contact your Area Sales Manager to register your interest in the Scheme and discuss benefits, requirements and eligibility.
Our brochures and manuals are available to download as PDFs on our website (click here). If you require hard copies, please email info@grantuk.com. Also available for mobiles and tablets is the Grant TechBox app, where all of Grant's current and historic product manuals are freely accessible. This app works in both online and offline mode (for times when there is no internet signal), so you’re never without the information you need.
We consider and respond to all complaints and issues, no matter how they are raised or what they refer to. We take every opportunity to resolve complaints at the first point of contact where possible. To make a complaint, please use the contact forms on this site, or alternatively email: info@grantuk.com
The G1 Portal (www.g1.grantuk.com) is an online platform which is exclusively accessible to G1 Scheme members. Via the Portal, G1 Installers can register their installations, access useful downloads and order marketing materials and branded items via the G1 Shop.
G1 Click is a product registration app exclusively accessible to G1 Scheme members. This app syncs with the Portal so that G1 installers can be sure that both platforms have their latest account information. Compatible with iOS and Android devices, G1 Click is a handy tool for Scheme members to have on their phones.
In simple terms, a warranty is like an insurance policy in which parts of the product bought can be insured through repair or replacement. It may also be seen as a written guarantee where a company provides assurance to another party of specific facts, conditions and remedy. This means that if a fact is not met by the product or service, it allows the consumer to receive a remedy, in most cases, free repair or product replacement. However, a warranty can and may have an expiration date and may not be applicable to all products and services.
Guarantee on the other hand, is a legal term that is of higher import than warranty. It is generally a promise or an assurance that attests to the quality and/or durability of a product or service. It may also be seen as a pledge where a product will perform in a specified manner. A guarantee is usually free and is legally binding. Also, it will take effect whether or not you have a warranty. In other words, a guarantee is separate from a warranty that’s provided by a service provider, manufacturer or other third parties.
Regarding an “app” or WiFi controlled systems. As with most of these systems we advise to contact the manufacturer to ascertain whether the “base station” can generate a 240v signal. Our boilers require this signal, from the room ‘stat via a zone valve, in order to energise. If your unit can produce this signal voltage then, in theory, the boiler should function.
If the system has an “open therm” configuration then this is only for modulating boilers, Grant boilers are range-rated and do not modulate. If the configuration can be changed to an “on/off” format then this, again in theory, should work
As in the summer season, when heating is not required, simply switch your controller’s heating demand regulator to the “off” position so the boiler will only energise for DHW demand.
With Grant external units, a frost thermostat is already factory fitted to protect the boiler.
However, should you install an internal boiler in a remote setting i.e. a garage etc, then a frost ‘stat MUST be fitted. In both cases a boiler return ‘stat would be a good idea to install. This controls the return water temperature and turns off the boiler earlier than the normal ‘stats which sense air temperature. This will reduce oil wastage and energy.
Yes, two or more can be linked using a header system via a common flow and return. On the return pipes to the boilers a Non-Return Valve must be fitted to prevent any back feed. Two to four boilers can be controlled by the Grant264 Boiler Sequencer.
A Grant Boiler cannot be installed directly onto a one pipe system as the return water temperature will be too low, this will cause internal condensing which will corrode the primary heat-exchanger. This return water must be above 40°C
The only way to establish a boiler into this type of system is by installing a plate heat-exchanger between boiler and pipework or supplying the circuit through a low-loss header arrangement.
This ensures the boilers are separated and will have “back-end” protection and, more importantly, the installation will be covered by the guarantee.
It is mandatory to power flush a system in order to fulfil Grant UK's guarantee.
However, if the system is old a power flush may cause undue pressure on the aging pipework, radiators valves etc. In these cases, the circuits should be chemically cleaned to assure the components are free of debris and system scale etc. and will not affect the new boiler.
During winter months when it is particularly cold, condensation can form and freeze on the finned evaporator coil of the unit. It is a normal occurrence and the heat pump is designed to cope with this. The control system will detect when the coil has iced up and will automatically enter a ‘defrost’ cycle. During this short ‘defrost’ period the fan will stop and the heat pump will cease supplying heat to the heating system in order to melt the ice. On completion the fan and heat pump will automatically restart and resume supplying heat to the heating system. This will not adversely affect the building temperature.
The coil of an existing cylinder will almost certainly be too small and this will result in longer cylinder reheat times at the lower water flow temperatures from a heat pump. For best performance a Grant High Performance cylinder should be used. This has a larger coil to reduce reheat times.
The defrost operation is based on the combined temperatures detected by three sensors within the heat pump. These are the outside air temperature sensor, the flow temperature sensor and the defrost temperature sensor. When all of these combined detect a need for the unit to run through a defrost cycle the heat pump will stop its current operation. The heat pump will then reverse its operation and direct hot refrigerant vapour back into the ice covered evaporator causing the ice to melt. Once the control system is satisfied this has been achieved, the heat pump will again return to operate the heat pump based on the demand that is being applied, either heating or domestic hot water.
Grant's underfloor heating systems include, Uflex and Uflex MINI. With a drying time of thirty days, the Uflex underfloor system is best suited to the new build and renovation market, this is so the underfloor system can be fitted as part of the floor construction process. Uflex MINI however has a drying time of 3 days. It is suitable for both new builds, as well as retrofits and renovations, when an underfloor heating system is to be fitted in a property with a floor construction already in place. At just 15mm in height, this underfloor system can be installed incredibly quickly and with minimal disruption to a property’s existing floor and door arrangements.
No! The Uflex MINI system is specifically designed to suit retrofits and renovations, when an underfloor heating system is to be fitted in a property with a floor construction already in place. At just 15mm in height, this underfloor system can be installed incredibly quickly and with minimal disruption to a property’s existing floor and door arrangements.
Upon commissioning a Grant Uflex screeded underfloor heating system connected to a Grant Aerona³ R32 Heat Pump, the initial temperature increase rate of the system should be gradual, so to avoid a situation where the heat pump ices up as a result of trying to heat up the fabric of the underfloor system too quickly.
This can be achieved by first ensuring that the screed has been allowed to dry and cure normally (the underfloor heating must not be used to speed up this process) before initial heating. The initial temperature increase rate of the underfloor system can be controlled to be gradual by setting the thermostatic mixing valve to setting 3 and leaving the system to run for two weeks upon initial start-up. Once the underfloor system has reached operating temperature, the system can be set to operate to the householder’s requirements.
The Microgeneration Certification Scheme is a government driven scheme to promote renewable technologies. It is an internationally recognised quality assurance scheme which demonstrates the quality and reliability of Approved Products by satisfying rigorous and tested standards. MCS is linked to the Governments’s finance schemes and incentives, such as the Feed-in Tariffs (FIT) and the Renewable Heat Incentive (RHI). If you wish to take advantage of these schemes, an MCS approved product must be used. For further information visit https://mcscertified.com/
The link for the Grant eLearning Academy is www.grantelearning.com.
In order to access the eLearning Academy and the online courses, users must first create an account. This is a really quick process that takes less than five minutes to complete. You will need an enrolment key (please use GUKWEB0820), your company details, and you will also need to confirm your password for your account. Once you have successfully set up your account, you can start viewing the courses.
During the sign-up process, you will be prompted to enter an enrolment key which is a unique code. You will need this to hand when creating your account so please use enrolment key GUKWEB0820.
The eLearning Academy is open to heating engineers, installers and other professionals within the heating sector of all abilities. The courses vary in content so candidates can enrol onto and complete the training which best suits their requirements.
Air Source Heat Pump and Hybrid product training are currently available on the eLearning Academy, covering topics from system design and product sizing through to heat emitter sizing and much more. Grant UK’s Training Team will be continuously adding to the content on the eLearning Academy so candidates can return to the platform at any time to refresh their learning or expand it further into new areas.
There are a variety of courses available on the eLearning Academy including on-demand courses which can be completed at anytime as well as instructor-led courses which are real-time courses hosted by one of Grant UK’s Trainers.
The instructor-led courses are full one or two day courses (depending on the course level selected) and candidates are required to log on between the hours of 8.30am through to 5pm (approximately) on the day(s) of their course.
On-demand courses are split into modules and sessions which vary in running time – the Advance Installer courses are approximately 7½ hours in duration (excluding assessment) and the Installer courses are approximately 5½ hours in duration (excluding assessment). On-demand courses can be completed in multiple sittings and candidates can pause and resume courses at any time.
There is a charge for the instructor-led courses and some of the on-demand courses so please log onto the eLearning Academy for further information about the prices. Free training content is also accessible on the eLearning Academy with a selection of courses available for candidates to complete which do not have a charge.
There is no waiting list for the on-demand courses as candidates can self-enrol and start these courses straightaway. With instructor-led courses, these are subject to availability so candidates must book their place in advance of the course.
To complete an on-demand course, simply log onto the eLearning Academy with your username/email and password, browse the course catalogue and select your chosen course. For free courses click ‘enrol’ and for chargeable courses click the price shown and follow the steps to checkout by credit/debit card. Once the transaction is complete, the purchased course will automatically show in the ‘My Courses’ section ready to be accessed.
Once you have logged onto the eLearning Academy and found your preferred ILC date(s), you need to book and pay for a space on the course by clicking on the button showing the price. Once your place on the ILC is confirmed, you simply need to log onto the eLearning Academy on the day(s) of your course, go to the ‘My Courses’ section where you will see your course and a Zoom Meeting link. You can also follow the Zoom Meeting link that is shared in your booking confirmation email too. We advise you to use a laptop rather than a mobile or tablet for the best experience during our ILC courses.
After completing a course on the Grant eLearning Academy, you will not receive a qualification but, depending on the level of training completed, the course could contribute towards G1 Installer Scheme accreditation or, with the CPD training for example, count towards personal development training hours.
Upon the successful completion of a course, the eLearning Academy will automatically issue a certificate as a record and evidence of the training completed. This certificate will not be emailed but it will be available to download in the ‘Transcripts’ section within your eLearning account.
Similar to the groups at courses held at Grant’s Training centres, each instructor-led course will be open to small numbers to enhance the learning experience for all. Up to 10 candidates can sit on an instructor-led course.
No, only some of the courses involve an assessment. For example, the Grant Air Source Heat Pump Installer training courses do require candidates to successfully complete the online assessment. If a course does involve an assessment, this is clearly mentioned in the course description prior to enrolment.
In order to participate in the online courses, candidates will need access to a computer or tablet with an internet connection. High speed broadband or sufficient 4G/5G mobile broadband is highly recommended for an optimal learning experience. For instructor-led courses (ILC), candidates will also need a working webcam, working speakers or headphones, and a working microphone.
Prior to an ILC, the Zoom app will need to be installed on your computer or mobile device – you can download Zoom and join a test meeting by following the link here: https://zoom.us/test. For users with a PC, Windows 10 is the compatible operating system for Zoom, and Firefox, Chrome and Microsoft Edge are compatible web browsers. For users with a Mac, OS X is the compatible operating system for Zoom, and Firefox, Chrome and Safari are compatible web browsers.
Should you experience a problem while using the eLearning Academy, please contact Grant UK’s Training Team on 01380 736920 or via email training@grantuk.com.