What should be used to secure the radiator to the wall?

Radiators are heavy items and should be securely fastened to the wall.  Specific care should be taken to identify the construction of the wall and use the appropriate fasteners to secure the radiator bracket.  Each radiator bracket has several positions for screws and can be found in the packing of Myson radiators.

Is it possible to fit decorative covers to my existing 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.

What is the difference between direct and indirect systems?

A direct system is one where the tap water actually mixes with the water in the radiators.  An indirect system separates the tap water from the radiator water.  Myson radiators must only be fitted to an indirect system.

When would Low Surface Temperature radiators be used?

LST radiators are advisable for areas where a person may injure themselves if left in contact with a traditional radiator.  Such applications are generally hospitals, nurseries and homes for the elderly and infirm but they can also be used in children's rooms or other areas of the house.

Is it possible to curve or bend radiators to fit under a bay window?

Myson Column radiators can be curved to fit most applications, upon special request. Or alternatively smaller radiators can also be used to make up the total length of the bay.

What allowences should be made for pipe centres from the edge of the radiator?

This obviously depends on the style and brand of radiator valve, however a rough guide would be to assume that the pipe center is approximately 50mm from the edge of the radiator connection.

What are the reccommended clearences when installing a radiator?

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

How do you know when a radiator needs venting?

If your radiators are cold at the top and hot at the bottom, the radiator needs venting.  Simply turn off the heating system and slightly open the air vent (this will require a radiator key) until water is noted at the air vent.  Take care to protect decorated surfaces with a cloth prior to opening the air vent. Gently close the vent and 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 called.

If radiators are hot at the top and cold across the bottom what does that mean?

This indicates that the radiator may have an insufficient flow of water to heat it effectively.  Large radiators need a higher water flow than small radiators.  There may be several reasons for this such as incorrect balancing, incorrect pipe sizes or an under-performing or under-sized pump.  A heating engineer should be called to carry out further investigations.

What are the Correction Factors in the radiator data charts?

We display radiator outputs in accordance with European Standards, at a radiator to air temperature differential of 50°C.  However the hotter the radiator is above the room’s air temperature, the more heat it will emit.  A typical UK heating system has an average radiator temperature of around 75°C and, if a room temperature of 20°C is required, there is a temperature difference between the radiator and the air of 55°C.  Simply look at the technical data of the required radiator and apply the correction factor for 55°C to the heat output shown to ascertain the correct heat output of the radiator.  The data chart shows correction factors for a wide range of radiator to air temperature differentials.

What is the hydraulic pressure drop accross a radiator?

The pressure drop across a single panel radiator is similar to that of an equal length of 15mm copper tube.  For a double panel radiator, assume the radiator is two lengths of 15mm pipe connected in parallel. For pressure losses across other radiators in the Myson range, consult the relevant technical brochure.

Are Myson radiators suitable for one-pipe systems?

MYSON radiators are only suitable for two-pipe systems.  The circulation of heat from the one pipe loop to the radiator is promoted by gravity circulation.  Modern radiators generally have high hydraulic resistance pipe connections, which would prevent effective water circulation between the pipe and the radiator.