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step 1 climate
Pictured on the right is a climate
map of Australia that shows four
winter climate zones relevant to
Rinnai Heaters; Mild, Cool, Cold
and Very Cold. It is important that
you choose the correct zone that
suits an application, as it directly
relates to the performance of
the heater. Detailed State maps
can be found on the ‘heater
selector’ page of our website:
www.rinnai.com.au.
step 2 heating area
It is also important that you
consider the size of the heating
area. This includes adjacent
rooms through permanently
open doorways and hallways.
On pages 10-12 you will nd the
approximate maximum area that
the unit will heat based on the
climate zones (ie. Step 1).
step 3 heat loss
Not all homes will have all of the
features listed in the table to
the right. Consequently, this will
aect the heating capacity. Place
a
alongside each of the design
features if they are relevant to
your home. Everywhere there is a
, an adjustment to the ‘Heats up
to’ capacity will need to be made.
Please note that this is only a guide
and individual house designs and
locations may vary.
Contact the Rinnai Helpline
if you require further assistance
1300 555 545.
calculate on-line
in 3 easy steps
As an example, you wish to purchase a Slimfire gas log flame fire, live in the ‘Cool’
zone, and have an area to heat of 65m
2
. The recommended ‘Heats up to’ capacity
for this model is 68m
2
, however you also have no carpets on the floor and a house
built on stumps. The heat loss total percentage is -10% (-5% + -5% = -10%) which is
deducted from the 68m
2
(the capacity of your heater) as a % to reduce it to 61m
2
. This
will no longer heat your desired 65m
2
. The next model up is the Royale Inbuilt with a
‘Heats up to’ capacity of 93m
2
, less the 10% heat loss = 84m
2
, which will adequately
heat the area.
Your area should be less than the Adjusted Capacity
Calculate your selected Rinnai Heater’s Capacity
1. Selected Heater
4. ‘Heats up
to’ Capacity
(see specifications)
2. Climate/Zone
5. Less
Heat Loss
(see specifications)
3. Total area you
are going to heat
(length x width)
6. Adjusted
Capacity
m
2
m
2
m
2
%
Heat Loss Factors Deduct Example
No Ceiling Insulation -10% ______ %
House built on stumps (not a slab) -5% ______ % -5%
No carpets on floors -5% ______ % -5%
No drapes on windows -5% ______ %
Uncurtained window area
exceeding 15.0m
2
-10% ______ %
Ceiling height exceeding 2.4m
If Yes, height 2.5 - 2.8m
-3% ______ %
2.8 - 3.0m
-5% ______ %
3.0m +
-7% ______ %
Reversible Ceiling Fan (positive) +5% ______ % ______
HEAT LOSS FACTOR TOTAL ______ % -10%
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