
Naturalvent, in conjunction with Dunham Bush radiator manufacturers, can provide you with the perfect accompaniment to your natural ventilation system. By installing a radiator under an inlet the incoming cool air can be warmed, preventing cold draughts while maintaining adequate ventilation levels. The radiator can also become part of your overall control system, allowing even more flexibility and control over the room’s comfort level.
Introduction
Dunham-Bush Warmsafe II LST radiators are designed to
provide comfort heating in applications where safety is
paramount. The heat emitter is totally enclosed within the LST
casing with inlet and outlet grilles designed to exclude ‘small
hands’. The mainly convective heat output promotes good
room air circulation and ensures ‘cool casing touch
temperatures’, which conform to the NHS Estates health
guidance note on ‘safe hot water and surface temperatures’.
Authority
It is accepted practice and policy at Dunham-Bush to maintain
exceptional standards in engineering and quality. To this end
Dunham-Bush operates a quality system and is registered as a
firm of assessed capability to BS EN ISO 9001 : 2000
Composition
Each Warmsafe II LST comprises a casing fabricated from
1.6mm thick mild steel sheet coated in RAL 9010 white
polyester powder. The top casing outlet comprises an extruded
aluminium grille and the bottom inlet is provided by integral
punched slots in the casing. Mild steel back-plates, coated in
matt black polyester powder, suspend both emitter and casing
on the wall surface. Knockouts are provided in each casing for
top/bottom and opposite/same end connections, with a
white nylon bezel to finish around the TRV adjuster. Emitters
are available in two types - E1 for 90mm thick casings and E2
for 150mm casings. Warmsafe II LST casings are also available
in special finishes, to any colour and gloss level from the RAL
and BS4800 range of colours.
Range
Warmsafe II LST radiators are offered in a comprehensive
range of sizes. There are two types of casing: 75mm deep (for
single row element) and 135mm deep (for double row
element). Casing heights are 600mm with lengths ranging
from 500mm up to 2400mm.
Elements
Each element shall be supplied with fins having formed
collars to ensure maximum heat transfer between fins and
tube. The fins shall be bonded to the tube by mechanical
expansion of the tube. The element comprises of 22mm O.D.
copper tube with aluminium fins having a minimum thickness
of 0.35mm.
General
Warmsafe II LST radiators are the ideal heat emitters for
applications where safety is the first consideration. Each size
can be selected and specified with confidence of satisfying
criteria for low-surface temperature requirements.
The low surface temperature casing has safe radiused corners
with no sharp edges, but is robust and finished in a durable“soft” white polyester powder coating.
Heating media
Warmsafe II LST radiators are designed for applications where it is critical to prevent long-exposure time burns. Warmsafe II
LST is designed for low temperature hot water (LTHW) as the
heating media (typically 80°C flow and 70°C return).
The use of medium temperature hot water (MTHW) is not recommended, as casing surface temperatures will exceed NHS and HSE recommended values.
Engineering Specification
Warmsafe II LST radiators shall be manufactured by Dunham-
Bush Ltd to the selection schedule and/or drawings. The
construction shall comply with the following specification.
Casings shall be manufactured in 1.6mm thick mild steel,
formed to a smooth finish free from sharp edges.
Slots shall be punched in the bottom for air inlet and an extruded aluminium ‘Shadowline’ grille shall be fitted to the top for air outlet. Casings shall be supplied with backplate with pre-punched holes for emitter bracket fixing.
[+] More Information about Monodraught & Windcatcher [-] Close
Naturalvent a division of TEK Limited uses the same natural wind driven force to power its active and passive terminals. All units feature insulated roofs and ducts, which are highly efficient and individually tested to 400Pa. Thermally broken and insulated dampers to compete with windcatcher unit are at extremely competitive prices. Naturalvent a division of TEK Limited have designed a 2008 range of equipment more extensive than any other supplier.
You may wish to visit our other sites Naturalvent, Air-Tek, Tek Limited, Natural- Shade, Tek Acoustics, covering natural ventilation, light tubes, solar fans, grilles, diffusers, displacement systems, solar shading, attenuators, acoustics and louvres, louvre screens, louvred doors and system design.