RINNAI - ‘E’ BEFORE ‘I’ OR VICE VERSA?
Rinnai offers big performance, heavy
duty, diminutive appliances that offer
virtually limitless volumes of hot water
at useable temperatures – all through
engineering design and excellence. And
both ‘E’ (external) - and ‘I’ (internal)
versions are offered. Here Chris Goggin,
Rinnai Operations Director, explains
the why and the where of using either
model to suit the application.
Gas fired appliances such as hot water
heating units or domestic or light
commercial boilers tend to be wall
hung on the interior of a site. Having a
unit sited internally on a kitchen wall
or a plant room makes for convenience
for the end-user and for the installer
or contractor in terms of installation,
maintenance or servicing.
However, external models of hot water
heating units have become increasingly
popular. We are seeing more and more
units sold as installers seem to be
favouring external siting for a variety of
reasons.
Firstly, having a gas fired unit internally
has its own restrictions – lack of
internal space, flueing restrictions
and impediments, exact siting for
installer convenience, inspections
etc. On external units a whole stack of
advantages come into play - starting
with the fact that it is a gas fired
appliance and it is outside habitable
space; and with no need for a flue
there’s greater flexibility on exactly
where you place the unit; it is easier
to service and maintain; all units have
robust casings and comprehensive
weather controls, for example a Rinnai
external appliance is frost protected
down to minus 25ºC.
All these factors add up to possible
economies for the end user and ease of
installation for the installer.
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Rinnai offer several units in both
external – ‘E’ - and internal – ‘I’ -
models.
They are in the more heavy-duty part
of our product range – 1600, 1500, 55
but also at the smaller end - the 17e.
Rinnai’s HDC1600i/e low NOx, gas-fired
continuous flow water heater, delivers
commercial qualities of hot water, up to
37 litres per minute on demand - to any
site and application. And they are ErP
‘A’ rated.