Rinnai FLAME FIRES Calculate your selected Rinnai Heater’s Capacity, Heat Loss Factors, Example

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 your application, as it directly relates to the performance of your 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. In this brochure, on the back page, is 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 affect 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 366 388.

www.rinnai.com.au

calculate on-line

Calculate your selected Rinnai Heater’s Capacity

1. Selected Heater					4. ‘Heats up
					to’ Capacity			m2
					(see back page)
2. Area/Zone					5. Less
					Heat Loss		%
					(see table below)
3. Total area you					6. Adjusted
are going to heat
					Capacity
(length x width)				m2				m2
			Your area should be less than the Adjusted Capacity
	Heat Loss Factors					Deduct	Example
	No Ceiling Insulation				-15%	______ %
	No Wall Insulation				-7%	______ %	-7%
	House built on stumps (not a slab)				-8%	______ %	-8%
	No carpets on floors				-5%	______ %
	No drapes on windows				-10%	______ %
	Window area exceeding 15.0m2				-15%	______ %
	Ceiling area exceeding 2.4m2
	If Yes, height	2.5 - 2.8m			-3%	______ %
					-6%	______ %
		2.8 - 3.0m
					-9%	______ %
		3.0m +
	Reversible Ceiling Fan (positive)				+5%	______ %	______
	HEAT LOSS FACTOR				TOTAL	______ %	-15%

As an example, you wish to purchase a Slimfire 25 flame fire, live in the ‘Cool’ zone, and have an area to heat of 65m2. The recommended ‘Heats up to’ capacity for this model is 68m2, however you also have no wall insulation and a house built on stumps. The heat loss total percentage is -15% (-7% + -8% = -15%) which is deducted from the 68m2 (the capacity of your heater) as a % to reduce it to 58m2. This will no longer heat your desired 65m2. The next model up is the Royale Manual Inbuilt with a ‘Heats up to’ capacity of 93m2, less the 15% heat loss = 79m2, which will adequately heat the area.

in 3 easy steps