Heating Systems and Boilers Replacements are undertaken using our own Staff, who are all Qualified and Certified to Install and Commission Heating Systems and Boilers in Accordance with the Latest Building Regulations.

We have undertaken extensive research into the products we specify, to ensure only the best available products are used along with excellent manufacturers support and product warranties that are the best in the Industry – an example of the manufacturers we work closely with as follows

Grant UK  – Oil Boilers, Air Source Heat Pumps, Hot Water Cylinders, Solar Panel System

Efficient boilers

Behind every Grant Vortex oil boiler in today’s range is over 40 years of experience in designing and manufacturing reliable and efficient oil-fired boilers. With their incredible efficiencies and incorporating the latest burner technology, all Vortex oil boilers have been developed to provide householders with a warm, comfortable home efficiently and effectively.

Choice for customers

The range delivers choice and flexibility when it comes to installation. From smaller boilers suitable for compact homes, external boilers for homes where internal space is at a premium through to larger boiler installations for bigger properties, the Vortex range comprises of oil boilers ranging in output from 15kW up to 70kW with heat only and combination boilers available.

HVO ready

As well as being energy efficient oil boilers, the Vortex floor standing boilers are also HVO compatible which means they can be converted to HVO operation with a few alterations. HVO biofuel is a low carbon liquid fuel which could play a significant role in helping off-gas, rural properties to transition to more sustainable home heating in the future so by choosing a Grant Vortex boiler, homeowners could make the switch from kerosene oil to biofuel with ease.

Renewable heating solution

Air source heat pumps are going to play a major role in helping the country to achieve net zero carbon emission targets. Air-to-water heat pumps capture heat energy from the air and transfer this into ‘wet’ heating systems, such as radiators or underfloor heating.

Design & installation

Air source heat pumps are low temperature heating systems which means they operate differently to traditional fossil fuel boilers which are high temperature systems. It is therefore incredibly important that when installing a heat pump, the system is planned thoroughly to ensure that it can fulfil the heating requirements of the property.

To help an air source heat pump to perform at its optimal efficiencies, it is important that the heat pump system is correctly designed, appropriately sized heat emitters are specified, the home is adequately insulated to reduce heat loss and a comprehensive customer handover takes place with the installer so that homeowners understand how their highly efficient, low carbon heat pump heating system will work.

Viessmann UK – Gas Boilers, Solar Hot Water System, Un-Vented Hot Water Cylinder

Shelford Heating have been installing Viessmann Boilers since 2005, We chose Viessmann as our No 1 Boiler because:

  • Industry Leading 5 Year Warranty on all Components, and 10 Years on the Main Heat Exchanger
  • The Option to Increase Warranty on all components to 10 Years
  • A Quality Product that should give many years service.
  • It high level Customer Care and Technical Support
  • Our ability to Communicate with Viessmann and we are not just a number, but a Loyal Installer that is appreciated.
  • The Training we receive at a number of Viessmann Training Academies

Efficient, compact, quiet and affordable, the Vitodens 100-W gas condensing boiler is the most popular solution for smaller and well insulated homes. Featuring innovative technology and services combined with reliability and longevity and comes ready for smart technology, helping you to optimise your heating and save on energy costs.

The combination of Vitodens 100/11-W boiler and the ViCare Thermostat means that no 3rd party controls are required, to either conveniently control the heating and hot water system, or to meet Boiler Plus regulations, as this combination deliver load-compensation control.

The boiler has WiFi inside; the ViCare Thermostat connects using RF and is battery powered and therefore doesn’t require electrical hard-wiring.

Not only does this make the boiler and control system the most simple to installe, it is also the most simply to commission, thanks to the commissioning app – Vitoguide.

The new Vitodens 100-W range offers unrivalled simplicity and convenience to everyone with:

WiFi inside

  • simple guided commissioning via the Vitoguide app
  • homeowner control of heating and DHW programmes using the ViCare App
  • 3rd party controls not required when using ViCare Thermostat

ViCare Thermostat

  • load-compensated control meets ‘Boiler Plus’
  • battery powered
  • RF connection

The range also accepts up to 20% hydrogen/methane mix, so is H2 ready.

Weather data, Geolocation and remote monitoring coming in 2021.


ATAG Logo (300dpi RGB)-1

Atag Gas Boilers a New addition to our Portfolio of Products in 2022 

ATAG has been designing and manufacturing boilers for almost 70 years. In that time we’ve set the highest standards for energy efficiency and engineering excellence across the world.

What sets ATAG apart is the fact that we operate in so many countries across the world, with each having their own strict engineering standards. We’ve combined all these requirements that today culminates in our ‘i’ range of ATAG boilers. They’re built to last using the highest quality stainless steel and brass components. Not only are they the most energy efficient boilers in Europe, they also have the lowest NOx emissions meaning they’re kinder to the environment.

At the heart of every ATAG boiler is our revolutionary iCon heat exchanger, which has unrivalled performance and efficiency levels. It’s made from high grade stainless steel and, uniquely, it maintains 98% of its original efficiency levels throughout its lifetime.

Throughout the world, ATAG boilers are installed in large commercial buildings as well as domestic properties and they are trusted to deliver unrivalled performance, efficiency and supreme reliability. This helps to explain why ATAG boilers are also the number one choice for professionals such as architects and design engineers. In addition to winning numerous global awards, UK consumers also rate ATAG the number one boiler manufacturer on independent review site Trustpilot.

Unique in the UK, and testament to the faith we have in our engineering expertise, every ATAG boiler can come with a warranty up to 14 years, when bought with selected products.

Atag 14 Years care package – additional component required

Atag 12 Year care package – additional components required

Atag 10 Year standard package – the Minimum for all Boilers

We don’t expect things to go wrong, but should they do so our after-care warranty helpline is 364 days of the year on 0800 680 0100.

To keep your warranty valid, and in the interest of safety, all we ask is you have your boiler serviced annually by a Gas Safe Registered engineer.


For the Latest in Heating Controls that can be controlled by mobile devices running android and IOS operating software visit Honeywell UK  to see the fantastic range of devices from a simple thermostat, to the full house control system Evohome

All Customer Enquiries are treated individually, with a Site Visit undertaken to discuss your needs, ensuring that a system is designed tailored to your requirements and is efficient in operation without breaking the bank?

We operate a policy of open book quotes, at the quotation stage you will be presented with a full detail of the specification and parts to be installed, Our Quotes are never discounted, we do not believe in sales techniques offering large discounts, but we do believe in Honesty and Openness with the view that if we make savings on any quote, we will pass this saving onto YOU our Customer.

OIL BOILERS (VORTEX PRO)  1 year 2 years

10 years if annually maintained by Accredited Installer 

OIL BOILER –  1 Year 2 Years 7 Years if annually maintained by Accreditted Installer
SOLAR THERMAL – PANEL 1 year 5 years 10 years
SOLAR THERMAL – KIT 1 year 5 years 5 years
CYLINDER BODY 1 year 25 years 25 years
CYLINDER COMPONENTS 1 year 2 years 5 years
HEAT PUMPS 1 year 2years 7 years 
BIOMASS 1 year 2 years 5 years
CONTROLS 1 year 5 years 5 years

*Product must be fitted with a Grant Vortex Mag-One magnetic filter or equivalent specification filter

**Product must be installed between 18th April 2016 and 14th April 2017. Product must be fitted with a Grant Vortex Mag-One filter.

In order for a product to be eligible for the extended guarantee, in addition to being fitted by a G-One installer, two other principal conditions must be met:

Vortex oil boilers, Aerona heat pumps, and Grant biomass boilers must also be fitted with a Grant Mag-One filter (or equivalent/higher specification filter)

All Grant products must be registered via the G-One Portal within 30 days from the date of installation.

All other components installed come with a minimum 12 months parts and labour warranty, this does not affect your statutory rights

Heating Systems that we Install using the Viessmann Range of Gas Boilers come inclusive of a 5 Year Parts and Labour Warranty on the Boiler only, this can be further extended to 10 years for a small fee and is advised by Viessmann separately.

Important Information

Only approved Companies Certified with the Correct Trade Bodies such as OFTEC, CORGI, Gas Safe and APHC, Microgeneration Certification Scheme (MCS) can Install Commission and Certify Installations for Building Regulation Approval, the exception being the Local Building Control Authority who will for a nominal charge undertake this, providing the Installation has been Commissioned by Competent Persons.

Having an Installation completed by a non-approved company, who then employs a competent company is not accepted