Frequently Asked Questions

Stock & Deliveries

What are the different colour options?


Most of our radiators and towel rails are available in a range of colours. Each product page states the colours available for that specific product.

For help choosing your finish please review our colour chart.

Please note that due to the screen resolutions, printing process and manufacturing tolerances the colour (including white) of a finished radiator may vary slightly from the colours represented on the website. It should also be noted that if the same type of Radiators are ordered and produced at different times they may also differ marginally in finished colour from any previously ordered.




What should I paint my radiators with?


The radiators supplied with painted finishes have a very durable baked-on powder coated finish that will not fade. They should not be re-painted as this will void the warranty.




Can I remove and refit my radiators for decoration purposes?


Individual radiators can be drained down when the system is turned off by protecting the floor, closing both valve heads fully using decorators’ caps provided. Decorators caps must be used on a thermostatic TRV head valve to ensure it closes fully; valve tails should be blanked off as an additional precaution.

To remove a radiator, loosen the nut connecting the valve tail to the valve and drain the radiator (use a shallow container to collect the water, this water could be very dirty so take care to avoid spillages). Disconnect the valve tail from the valve and remove the radiator.

Remember, when refitting a removed radiator, the heating system may require “topping up”. It is important when topping up your heating system, you also include an appropriate amount of mixed metal inhibitor. Your installer will be able to help.




Can I fit decorative covers over my radiators?


Decorative covers can be utilised; however, they will significantly reduce the output of a radiator. The amount of heat reduction is dependent on the actual design of the cabinet and radiator so we cannot give an exact heat reduction figure.

Thermostatic radiator valves should not be fitted inside the radiator cover as they are designed to measure temperature in order to function accurately.





Choosing the right Radiator

What are the different colour options?


Most of our radiators and towel rails are available in a range of colours. Each product page states the colours available for that specific product.

For help choosing your finish please review our colour chart.

Please note that due to the screen resolutions, printing process and manufacturing tolerances the colour (including white) of a finished radiator may vary slightly from the colours represented on the website. It should also be noted that if the same type of Radiators are ordered and produced at different times they may also differ marginally in finished colour from any previously ordered.




What should I paint my radiators with?


The radiators supplied with painted finishes have a very durable baked-on powder coated finish that will not fade. They should not be re-painted as this will void the warranty.




Can I remove and refit my radiators for decoration purposes?


Individual radiators can be drained down when the system is turned off by protecting the floor, closing both valve heads fully using decorators’ caps provided. Decorators caps must be used on a thermostatic TRV head valve to ensure it closes fully; valve tails should be blanked off as an additional precaution.

To remove a radiator, loosen the nut connecting the valve tail to the valve and drain the radiator (use a shallow container to collect the water, this water could be very dirty so take care to avoid spillages). Disconnect the valve tail from the valve and remove the radiator.

Remember, when refitting a removed radiator, the heating system may require “topping up”. It is important when topping up your heating system, you also include an appropriate amount of mixed metal inhibitor. Your installer will be able to help.




Can I fit decorative covers over my radiators?


Decorative covers can be utilised; however, they will significantly reduce the output of a radiator. The amount of heat reduction is dependent on the actual design of the cabinet and radiator so we cannot give an exact heat reduction figure.

Thermostatic radiator valves should not be fitted inside the radiator cover as they are designed to measure temperature in order to function accurately.





Radiator Positioning

Where should I position my radiators?


In new modern homes, radiator positioning is less important due to insulation and modern building regulations however please be sure to consult your plumber or heating engineer prior to purchase and installation of your radiator. In traditional homes, most radiators are best placed in the coldest part of the room - usually found under a window, as this allows for airflow and radiant air convection.

Large spaces are more effectively heated with 2 or more, smaller radiators rather than one large one.

A rule of the thumb often used in the trade is to have one radiator every four metres (about 15 feet) or so in the room. An alternative could be two tall thin radiators either side of the window or a long low radiator along the wall.




Should I choose horizontal or vertical?


Many of our designs are available in horizontal or vertical options, which one you choose depends on your available space and how you can maximize the use of the space without compromising or losing the required heat output.




What clearances do I need above and below my radiator to ensure maximum efficiency?


We recommend that clearances of 50mm above and 100mm below should be left clear so heat from the radiator can be effectively distributed.




Can I curve or bend radiators to fit into an existing bay window?


Some radiators can be curved or bent to fit a bay window, unfortunatly we do not supply these. if you require a curved radiator plese visit The Radiator Company who provides this type of radiator from their Ancona range, where they can curve the radiator to your specifications.





Colours & Painting

What are the different colour options?


Most of our radiators and towel rails are available in a range of colours. Each product page states the colours available for that specific product.

For help choosing your finish please review our colour chart.

Please note that due to the screen resolutions, printing process and manufacturing tolerances the colour (including white) of a finished radiator may vary slightly from the colours represented on the website. It should also be noted that if the same type of Radiators are ordered and produced at different times they may also differ marginally in finished colour from any previously ordered.




What should I paint my radiators with?


The radiators supplied with painted finishes have a very durable baked-on powder coated finish that will not fade. They should not be re-painted as this will void the warranty.




Can I remove and refit my radiators for decoration purposes?


Individual radiators can be drained down when the system is turned off by protecting the floor, closing both valve heads fully using decorators’ caps provided. Decorators caps must be used on a thermostatic TRV head valve to ensure it closes fully; valve tails should be blanked off as an additional precaution.

To remove a radiator, loosen the nut connecting the valve tail to the valve and drain the radiator (use a shallow container to collect the water, this water could be very dirty so take care to avoid spillages). Disconnect the valve tail from the valve and remove the radiator.

Remember, when refitting a removed radiator, the heating system may require “topping up”. It is important when topping up your heating system, you also include an appropriate amount of mixed metal inhibitor. Your installer will be able to help.




Can I fit decorative covers over my radiators?


Decorative covers can be utilised; however, they will significantly reduce the output of a radiator. The amount of heat reduction is dependent on the actual design of the cabinet and radiator so we cannot give an exact heat reduction figure.

Thermostatic radiator valves should not be fitted inside the radiator cover as they are designed to measure temperature in order to function accurately.





Technical Information

What systems are our radiators compatible with?


All radiators and towel rails featured on this website are suitable for indirect/closed systems that comply with 'BS5449, section 1 forced circulation hot water systems'.

Certain Towel Rails like our Lanark towel rail can also be fitted on a direct hot water system.




What is the difference between an indirect and direct system?


An indirect system is filled with water that remains in the system and is circulated through the boiler and radiators.

A direct system uses mains water that is continually replaced within the system – this causes an influx of oxygen and bacteria in the water, meaning Stainless Steel or Brass radiators should be used to avoid rusting of the radiators or contamination of the water supply.




I want to install aluminium radiators, is there anything I need to know?


Aluminium radiators are installed in exactly the same way as steel or cast iron, as with all central heating systems a suitable quality and quantity of inhibitor must be used to avoid corrosion. Mixed metal inhibitors are now easily available from most plumbers’ merchants. Be sure to ask your plumber about mixed metal inhibitor.




Are the cast iron radiators from Radiators Direct compatible with my system?


Our Cast Iron radiators are compatible with normal central heating systems and have British Standard fittings. On an existing system you can replace all the radiators or just the ones you want. Confirm with your installer that your pipe work and system set up is suitable for additional radiators.




Do cast iron radiators take longer to warm up than standard radiators?


Yes, however, because there is a lot of mass with cast iron, the radiators have the advantage of staying warm long after the central heating has been turned off. This means that the changes in temperature in a room heated with radiators made of cast iron are gentler than those in a room heated with steel radiators.

Most people tend to run their central heating twice per day, once in the morning and then again at night, if a third short period is added into the middle of these two times then the warm up time is greatly reduced and the house will remain warm all day and night. When mixing standard radiators with cast iron we find that if the central heating thermostat is sited near a standard radiator the heating may close down before the cast iron radiators sited elsewhere have reached full temperature. The solution is to slow down the standard radiator, influencing the thermostat by part closing the lockshield valve on that radiator (the usually covered end valve opposite the temperature control valve on the radiator used to balance the central heating system).

Heating a home is partly about heating the fabric of the building. Cast iron radiators are again becoming popular amongst heating engineers and architects (particularly for older buildings) as they tend to retain the warmth in the fabric of the building which in turn counteracts damp and condensation.




Are our radiators suitable for a single pipe system?


All our radiators are compatible with a single pipe system. However, depending on the setup of your one pipe system, you may need specialist valves. If you are unsure about the compatibility of our valves with your single pipe system, please feel free to contact us or discuss this with your installer.




Do my radiators need venting, and how do I do it?


Pockets of oxygen naturally build up in central heating systems due to the amount of fresh water running through it - this in turn causes radiators to become less efficient. Radiators require venting to alleviate the build-up of air, which in most cases is a manual process.

If you already own a radiator that is cold at the top and hot at the bottom, it is likely that your radiator needs venting (bleeding).

How to Vent/Bleed your radiator:

-Take care to protect decorated surfaces with a cloth or small bowl to catch the water prior to opening the air vent.

- Venting is best carried out when the system is cold, to do so, simply turn off the heating system and slightly open the air vent (some radiators will require a radiator vent key, others may need a small screwdriver) until water is noted at the air vent (this means all air has been purged from the radiator).

- Gently close the vent and then switch the system back on.

If the radiators need venting frequently, there may be a fault with the system and a heating engineer should be contacted.




Why are my radiators hot at the top and cold at the bottom?


This indicates that the radiator may be receiving an insufficient flow of water; typically, large radiators need a higher water flow than small radiators. There may be several reasons for this, such as incorrect balancing, incorrect pipe size or an under-performing or under-sized pump, there may also simply be a blockage in the radiator or there could be pockets of oxygen that need venting.

A heating engineer should be called to carry out further investigations.





Installation

Where should I position my radiators?


In new modern homes, radiator positioning is less important due to insulation and modern building regulations however please be sure to consult your plumber or heating engineer prior to purchase and installation of your radiator. In traditional homes, most radiators are best placed in the coldest part of the room - usually found under a window, as this allows for airflow and radiant air convection.

Large spaces are more effectively heated with 2 or more, smaller radiators rather than one large one.

A rule of the thumb often used in the trade is to have one radiator every four metres (about 15 feet) or so in the room. An alternative could be two tall thin radiators either side of the window or a long low radiator along the wall.




Should I choose horizontal or vertical?


Many of our designs are available in horizontal or vertical options, which one you choose depends on your available space and how you can maximize the use of the space without compromising or losing the required heat output.




What clearances do I need above and below my radiator to ensure maximum efficiency?


We recommend that clearances of 50mm above and 100mm below should be left clear so heat from the radiator can be effectively distributed.




Can I curve or bend radiators to fit into an existing bay window?


Some radiators can be curved or bent to fit a bay window, unfortunatly we do not supply these. if you require a curved radiator plese visit The Radiator Company who provides this type of radiator from their Ancona range, where they can curve the radiator to your specifications.





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