11
GREENSTAR Ri
8 716 115 172a (06/2008)
Heating economically
The boiler is designed to provide a high level of comfort while keeping gas consumption and
the resulting environmental effect as low as possible. The gas supply to the burner is controlled
according to the level of demand for heat. The boiler continues to operate with a low flame if
the demand for heat reduces. The technical term for this process is modulating control.
Modulating control reduces temperature fluctuations and provides even distribution of heat
throughout the home. This means that the boiler may stay on for relatively long periods but will
use less gas than a boiler that continually switches on and off.
Central heating systems with room thermostats/thermostatic radiator valves
The central heating control on the boiler should be set to the maximum rated design
temperature of the central heating system.
The temperature of each room can be set individually (except primary room with the room
thermostat) using the thermostatic radiator valves.
Roof insulation
Around 30% of the heat loss from a property is through the roof. Replace any old insulation
with new insulation, preferably of around 200mm thickness or more.
Window frames
Single glazed windows, particularly those with steel frames, can lose a great deal of heat.
Consideration should be given to replacement with PVCu or wooden framed double glazed
units.
Curtains
Lined curtains, or heavier full length curtains can provide excellent insulation. However, always
ensure that the curtains do not drape over radiators.
Draughts
Try to ensure that draughts around doors, windows, letter boxes and key holes etc. are reduced
by using a suitable draught excluder.
WARNING - Do not block or seal any air vents that are installed to ensure the central heating
boiler operates safely.
Room thermostats
Reducing the setting of the room thermostat by 1°C can reduce fuel consumption by up to 10%.
New control systems
Upgrade your heating control system if necessary with the latest equipment available. The
minimum level of control is a programmer, interlocking room thermostat and thermostatic
radiator valves.
Radiators
Radiators will normally be sited underneath a window, so the warm air from the radiator heats
the colder incoming air from the window. The performance of the radiator will be affected if
curtains are allowed to drape over the radiator or shelves are fitted above. Positioning of
furniture in front of the radiator should be avoided.
Manually adjust all radiator valves every two to three months to prevent them sticking. Ensure
that the plastic tops of all valves are always in position and not damaged. Care should be taken
when vacuum cleaning carpets to avoid damage to valves and pipework.
The heating system and the outputs of the radiators have been carefully selected by your
installer. The temperature obtainable in any given room is dependent on all radiators being
operated at the same time. If you decide to turn off radiators in unused rooms, spare bedrooms
etc., you may experience slightly lower room temperatures in rooms next to unheated rooms.
TIPS ON ENERGY SAVING
TIPS ON ENERGY SAVING
ENERGY
SAVING
(19 pages)
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