Frequently Asked Questions

We have the answers to some of your frequently asked questions. Need more information? Contact us on 03301 330 556 or email info@limegreenuk.com

• Are you Gas Safe Registered?

  Gas Safe Accreditation is the hallmark for gas safety in the UK. An installer must be on the Gas Safe Register to be legally allowed to work on your boiler or any other gas appliances in your home. All of our installers are Gas Safe registered and our Gas Safe Registration Number is 542780

• Are you an Accredited Worcester Bosch Installer?

  Limegreen is a Worcester Bosch Accredited installer and as an accredited installer we can offer our customers a ten-year – no quibble – guarantee on selected Worcester Bosch boilers. Non-accredited installers are not able to offer this. Due to the flammable nature of gas, it is imperative that our customers have the upmost confidence in our expertise. We want to provide assurances of our competence to install a boiler safely and are committed to upholding the highest of standards. At Limegreen, our customers have identified the importance of attaining recognition of our skill with the UK's leading boiler manufacturer and Worcester Bosch want their customers to have peace of mind that the installer abides by industry standards. In fact, to become an accredited installer, we are required to submit to regular checks of all installers, which include providing proof of being Gas Safe and adhering to all other relevant certificates. All installers of Worcester Bosch boilers and heating systems who work for Limegreen are fully qualified gas engineers.

  We are able to supply the full range of Worcester Bosch Boilers including the following

  Combi Boilers

  Combination, or combi, boilers produce both heating and hot water on demand, without the need for a cylinder. A great solution for properties with limited space thanks to their compact, single unit form.

  • Greenstar i – Most popular combi boiler
  • Greenstar Si Compact – Space saving combi boiler that fits within a standard kitchen cupboard
  • Greenstar CDi Classic – Top of the range high performance combi boiler
  • Greenstar CDi Compact – Space saving combi boiler that fits within a standard kitchen cupboard
  • Greenstar CDi Highflow – Ultra high performance floorstanding combi boiler
  • Greenstar Heatslave II – UK’s most popular oil combi boiler
  • Greenstar Heatslave II External – UK’s most popular external oil combi boiler

  System Boilers

  System boilers use a cylinder to store hot water, but the majority of heating still takes place in the boiler itself. Ideal for homes with multiple bathrooms where hot water is in high demand.

  • Greenstar i System (9kW to 24kW) – Most popular system boiler
  • Greenstar i System (27kW and 30kW) – Space saving system boiler that fits within a standard kitchen cupboard
  • Greenstar CDi Classic System – Top of the range high performance system boiler
  • GB162 – Part of a market leading range of gas fired boilers
  • Greenstar Danesmoor System – Part of a market leading range of oil fired system boilers
  • Greenstar Danesmoor System Utility – Part of a market leading range of oil fired system boilers
  • Greenstar Danesmoor External System – Part of a market leading range of oil fired external boilers

  Regular Boilers

  Regular, more traditional boilers, use hot water cylinder as well as a cold water and additional storage tank, usually in the loft space. A good option for replacing exisiting old boilers without updating the entire central heating system.

  • Greenstar Ri (12kW to 24kW) – Best selling regular boiler that fits within a standard kitchen cupboard
  • Greenstar Ri (27kW and 30kW) – Ultra space saving regular boiler that fits easily within a kitchen cupboard
  • Greenstar CDi Classic Regular – Top of the range high performance regular boiler
  • Greenstar CDi FS Regular – Ultra high performance floorstanding regular boiler
  • Greenstar Danesmoor Regular – Part of a market leading range of oil fired regular boilers
  • Greenstar Danesmoor Utility – Part of a market leading range of oil fired regular boilers
  • Greenstar Danesmoor External – Part of a market leading range of oil fired external boilers
  • Greenstar Utility Regular – Part of a market leading range of oil fired external boilers

• What is Condensing Technology?

  You may sometimes see or hear references to "condensing boilers" or "condensate boilers". Changes to government legislation and technology advances in boiler design has driven boiler designs to condense to ensure as much heat as possible is converted into useful heat for your home. By condensing, your boiler will ensure at least 90p in every £1 you spend on gas or oil will be converted into heat for your home comfort.

• What is a Combi Boiler?

  A combination or 'combi' boiler is both a high efficiency water heater and a central heating boiler in a single compact unit. Combi boilers heat water directly from the mains when you turn on a tap, so you won’t need a hot water storage cylinder or a cold water storage tank in the roof space.

  They are also very cost-effective and energy-efficient as water is heated instantly rather than being heated and then stored in a cylinder. An added benefit is that hot water is delivered at mains pressure, which means that you could get a powerful shower without the need for a separate pump.

  • Compact sizes make combi boilers perfect for smaller properties
  • Ideal where there is little or no loft space
  • No need for a hot water cylinder allows increased living space
  • No cold water storage tank frees up a loft for conversion
  • No risk of loft pipework freezing
  • Less pipework in the home makes installation typically cheaper

• What is a System Boiler?

  System boilers require a cylinder for storing hot water, however the major heating and hot water system components are built into the boiler itself, making it quicker and easier to install. In addition, there is no need for a tank in the loft, so it can be an option in a home with little or no loft space or where the space is earmarked for a conversion.

  These boilers are also compatible with solar water heating systems, which deliver environmental benefits as well as lower energy bills.

  • Ideal for homes with more than one bathroom
  • Constant supply of hot water to any number of taps at the same time
  • No need for a loft tank, freeing up space and eliminating worries about leaks or frost damage
  • Economical to run
  • Built-in components makes installation quicker and neater

• What is a Regular Boiler?

  Regular boilers (sometimes known as traditional, conventional or heat only boilers) are ideally suited to homes that already have a traditional heating and hot water system which is linked to a separate hot water cylinder. These boilers also need a cold water storage tank in the loft to feed the hot water cylinder as well as a tank that maintains the water level of the central heating system.

  A regular boiler may be the best option for replacing an existing boiler if the property has an older radiator system, as it might not be able to cope with the higher water pressure that is delivered by system or combi boilers.

  • Perfect for homes where a lot of hot water is used at the same time
  • Ideal where there are two or more bathrooms
  • A good option in areas where water pressure is low
  • Compatible with solar water heating systems for a lower carbon footprint and lower energy costs

• What is System Flushing and why do I need it?

  Over time oxygen in the heating system can react with the metals and components of a heating system such as radiators to produce magnetite (rust) particles, which becomes suspended in your system water. This process and the build-up of other chemicals (such as lime scale) can quickly cause blockages and damage key components within the boiler and system. To prevent this a process of thorough system flushing should take place when fitting a new boiler onto an old heating system. This process involves forcing old system water out of the heating system, whilst simultaneously filtering the system until all of the old water and contaminants are removed. Finally inhibitor and a system filter is added to prevent any future sludge and contaminants from building up.

  We always run a system flush prior to installing your new boiler and this is included on the price you are given.

• Are you an Ideal accredited installer?

  Yes! Limegreen are an Ideal accredited installer.