FREQUENTLY ASKED QUESTIONS

 

Do you have any other colour or size options not shown on the website?

That’s a definite maybe! Send us an email with what you are looking for or thinking about and we will come up with a solution for you if at all possible.

 

 

How do I convert Watts to BTU’s?

  • BTUs = watts x 3.412 or Watts = BTUs ÷3.412

 

 

How do I size my radiator to ensure it will heat my room effectively?

A radiator is sized to provide the heat required for your room. You will see the output of radiators referred to on the product page. E,g. Eros Towel Rail 450mm wide x 1000mm high will give you 579 watt / 1796 BTUs. But will this provide enough heat for your bathroom? You need to establish how many watt or BTUs your bathroom needs. For further information, please refer to the Radiator Sizing section of the website. Or you can calculate what you need by using our Heat Requirement Calculator.

 

 

What does ΔT50C mean in terms of radiator output?

When you are comparing radiators you will do so based on their size, price and output. For example the Eros Towel Rail in white 450mm high x 688mm wide is €80 inc vat and delivery and has an output of 458 watt / 1564 BTU at ΔT50C (Delta T 50C).

ΔT is the European heat output rating and refers to the temperature that:

  • the water enters your radiator
  • the water leaves your radiator
  • you wish your room to reach

ΔT50ᴼC presumes water entering your radiator system at an average of 75ᴼC which is the standard temps of condensing boilers.  So if you are using a condensing boiler, the above Eros towel rail will give you an output of 458 watt / 1564 BTU.

Sometimes you will see websites or brochures which state radiator outputs ΔT60ᴼC. This is the older British rating which assumes water is entering your system at an average of 90ᴼC. Such temperatures are common with older oil and gas boilers.

Example:

  • Eros Towel Rail in white 450mm high x 688mm wide is €80 inc vat and delivery and has an output of 458 watt / 1564 BTU at ΔT50C (Delta T 50C).
  • Eros Towel Rail in white 450mm high x 688mm wide is €80 inc vat and delivery and has an output of 579 watt / 1977 BTU at ΔT60C (Delta T 60C).

To Compare: If you see a radiator with outputs at to ΔT60ᴼC you can convert to ΔT50ᴼC by dividing it by 1.264. Similarly you can covert to ΔT60ᴼC from a ΔT50ᴼC by multiplying it by 1.264.

 

 

What effects do different heating systems have on my radiator choice?

The radiator outputs listed on this website provide the stated heat at ΔT50ᴼC. ΔT50ᴼC presumes water entering your radiator system at an average of 75ᴼC which is the standard temps of condensing boilers, biomass boilers etc. If you are using an older boiler (non-condensing), each of the radiators will provide you with about 26% more heat that stated. If you are using a lower temperature system such as a heat pump or solar central heating, the output of the radiators is reduced significantly. If you require specific advice on this please call our helpline n074 9747031 on Mondays or Wednesdays or email us on info@theradiatorshop.ie

 

 

What are my options for heating my radiator?

The radiators on this website  have 3 power options.

Central Heating Radiators- hot water is fed to your radiator from your hot water tank which is powered by your oil, gas, solid fuel, heat pump, biomass boiler etc. Your radiator will only be warm when your central heating is on. For this reason, many people choose a dual fuel radiator for bathrooms (particularly towel rails) so that your bathroom (or your towels!) will be warm even during the summer months when your central heating may not be on. See Dual Fuel below.

 

Electric Radiators- are filled with a heating solution and heated by an electrical element. They are a stand alone unit not connected to any other water system in your home. Electric radiators are very popular for bathrooms (in the form of a towel rail) where underfloor heating is present to provide nice warm towels, or a bit of heat when the underfloor is turned off or down in summer months. Again, if you have underfloor in a another room (e.g. living area) and your heating system is off (summer months), an electric radiator can provide a boost of heat in the evening time.

 

Dual Fuel Radiators- are connected to both the central heating system and an electrical element using a dual fuel element. In colder months the radiator is heated by your central heating system, and in warmer months if your heating system is off, you can switch on the electrical element. Again perfect for bathrooms areas or main living areas.

 


How do I connect an Electric Radiator?

Your electric radiator will be connected to your mains the same as any other electrical appliance in your home. You may choose not to fit a standard 3-pin plug as and instead hard wire your radiator into a fused spur with an on/off switch. This is important in bathroom areas for safety reasons. All in all a simple job for your electrician!

 

 

Will a towel rail heat my bathroom, or do I need another radiator also?

Yes. Any radiator (towel rail, horizontal, vertical etc.) will heat your room as long as it has the output (watt/BTUs) required to do so. Many people believe that a towel rail won’t heat a bathroom, but this is untrue. It will, if it is sized correctly. The problem arises when a towel rail is chosen for style or size e.g. that size will fit between our sink and shower.  While it might look good, you may need a larger version to fully heat your room.Difficulties can arise with older poorly insulated bathrooms or very large bathrooms. The capacity of towel rails usually runs between 200watt/682BTUs and 1400watt/4776BTUs. If you require more than this for your bathroom, your best option may be to go for a smaller towel rail along with another radiator, or a vertical or horizontal chrome radiator. White towel rails generally give more heat than chrome, so if you opt for a white finish you might find what you are looking for in terms of high output.

Tip- heated towel rails a great for walk in wardrobes, front porches, kitchens and utility rooms also!

 

 

Do I need an inhibitor fluid for my system?

The simple answer is yes, but you can install your radiators without it. In the past many central heating systems were filled with plain water. However, to protect pipework, boilers and radiators, more and more plumbers are moving to the use of inhibitor fluid. For example, Fernox Alphi 11 is non-toxic, environmentally friendly antifreeze which protects against corrosion and limescale in your system. Use it!

 

 

 

Where should I locate my radiators?

Larger rooms will be best heated by two or more radiators positioned evenly rather than one large radiator. It is fine to place your radiators under windows or on an outside wall as in older houses this is the coldest part of the room and the direct heat of the radiator will balance this draft. In new builds this cold spot by windows is not an issue, however under windows can be a good place to avoid using other wall space up. If you have full length curtains avoid placing your radiators behind these. In addition, try to avoid placing your radiator where it is likely to be obstructed by furniture e.g. sofas etc.

 

 

How much space do I need to leave below and above my radiators?

To allow for optimum efficiency leave at least 100mm below and 50mm above your radiators.

 

 

 

Do I need an angled, straight, or corner valve?

A straight valve is usually fitted to radiators whose pipes enter the bottom e.g. a towel rail,  angled valves are usually fitted to radiators  with side entry connections, and a corner valve is the perfect option for towel rails- therefore we call them towel rail valves.

 

 

What is the difference between a thermostatic (TRV) radiator valve and a standard radiator valve?

A thermostatic valve or TRV allows you to adjust the heat coming from a radiator. You can adjust the heat from the highest point 5 down to 1. These can be very important for example in a living area where you have surplus heat from a fire, in a kitchen where temperatures can go up and down dramatically, in a conservatory where you gain some solar heat. In fact, if you do not have individual room stats we really recommend us use a thermostatic valve everywhere in the house.  They are  a little bulkier and a bit more expensive, but will reduce energy waste and provide for a much more comfortable living environment.

 

 

Do you sell radiator covers?

No. While very popular for their style, many radiator covers or cabinets severely restrict the amount of heat that a radiator can provide into a room, making your central heating system work overtime to warm your home. Not good for the environment or your pocket. Having said that, some are worse than others. If you pay a little more for a high quality cover it isn’t really bad, just unnecessary. We say why use a radiator cover or cabinet when you could have a stylish contemporary or traditional radiator for the same price? Why indeed!

 


Do you have trade prices?

We keep our margins very low for all of our customers, therefore we can only offer a trade discount on bulk purchases. Please contact us for further details on info@theradiatorshop.ie.

 

How do I clean my radiator?

Using mild soap and water and a soft cloth- please be nice to your radiator and don’t use any harsh cleaning products or corrosive materials.

 

How to bleed a radiator?

If your radiator has some hot spots and some cold spots, you probably need to bleed it. Bleeding radiators means removing the air from them.

  • Open both valves at the bottom of the radiator.
  • On the top left or right of the radiator will be an air vent which can be opened using a bleed key (purchase from hardware store) or some may need a small screwdriver
  • Hold an old rag underneath the vent and be careful to protect decorated surfaces from potential water spray
  • Slowly open the vent - you will hear a hissing sound (air venting) which will change to a steady stream of water.
  • When you get this far you can retighten the air vent.
  • Note- in sectional radiators (e.g. aluminium) air-pockets can form throughout the radiator so a longer bleed is required to remove all air pockets. The first flow of water may not signal the last of the air.