Solar hot water systems are the perfect choice for Perth homes because they cost very little to run, are long lasting, require minimal maintenance and a government rebate covers up to 40% of the cost. They are ideally suited to Perth’s sunny climate, where we have an average of nearly 8 hours of brilliant sunshine a day . This means you need minimal boosting by the back-up hot water system (booster) to keep water piping hot for your home.
Compared to other methods of hot water heating, the cost of solar is competitive over the system’s life due to its low running cost and long system life.
Solar systems comprise a tank to store the hot water and solar panels, fitted on the roof, to heat the water. Choose either a medium or large tank to suit your water usage. You can have 1, 2 or 3 panels to heat the water. In Perth, the tank is commonly located on the roof (close-coupled) but it can also be sited on the ground (split system) and the water pumped up from the tank to the panels to be heated.
Government rebates for solar hot water systems continue to be at their best levels since September 2013. You could knock as much as $1,748 off a super sized 330l solar hot water system with 3 panels.
These rebates won’t last forever, so it’s a great opportunity to take advantage of a good price drop.
The Benefits of Rinnai Systems from Air & Water
Air and Water recommend and install Rinnai models under the brand name of Sunmaster, as detailed in the table below. Rinnai’s systems are amongst the most efficient which means you get higher STCs up front and lower running costs each year they also don’t dump excess heated water (many other brands do)– a triple win.
If you are looking for a replacement solar hot water system, then you don’t have to swap like for like brands. Air & Water replace a lot of Solahart units with the affordable and feature packed Rinnai models. Replacing systems is called a solar to solar installation and, as there is less plumbing involved, the price is cheaper than a full installation and you still get STCs deducted from the price, super savings! We also remove your old unit.
Please note, until recently Rinnai’s solar systems used to be branded Equinox.
As well as the traditional solar systems detailed below we can also supply and install evacuated tube systems. We have not provided any detail on evacuated tube systems here because they are more expensive and not as suitable for WA’s climate as the traditional solar hot water systems. (Read why on our Frost Proof Solar Hot Water blog).
Top 5 Reasons to Choose Air and Water
- Better prices than plumbers on Rinnai Equinox
- 10 years’ experience in solar hot water systems and trained by Rinnai
- A range of easy finance options available
- 5 year installation guarantee
- Hassle free, fast installation by reliable licensed plumbers on new build homes and replacement systems.
Rinnai’s Range and Features
|Tank construction||Steel coated in vitreous enamel|
|Choice of gas or electric booster||Both|
|Tank manufactured in||China|
|Tank on roof (close coupled) or tank on ground (split system)||Either|
|Tank storage capacity close coupled||200 or 330 litre|
|Tank storage capacity split system||250 or 315 litre|
|Close coupled tank colour||Dune|
|Split system tank colour||Dune|
|Choice of panel Enduro standard / Excelsior standard (good in dappled light) optional frost tolerant kit||Yes – all 4|
|Does the frost proof system have a water or glycol filled panel?||Water|
|Hot water dumped from the tank if water exceeds 50oC?||No, this can result in noise on
very hot days if water use is low
|STCs compared to other popular brands||Very high – maximises savings|
|Gas booster||Rinnai Infinity S20 or S26|
|Sacrificial anode which needs replacing every 2 – 5 years?||Yes|
|Average system life||7-20 years|
|Warranty parts and labour on standard model*||3 years generally|
|Warranty on tank / panels for domestic use||5 years / 7 years|
|Information as at March 2022. Don’t purchase based on this information without confirming that it’s current.||*Commercial use warranty 1 year|
Types Of Installation
Air and Water Residential provide:
- Full Installation – supply and full installation, prices of popular systems below
- Solar to Solar – supply and replace your old system, prices of popular systems below
- Supply Only – system only, no delivery and no installation, and
- Plonk On -supply and partial installation, for buildings under construction.
For Supply Only or Plonk On jobs, ín accordance with the government rebate conditions, we charge the retail price and you claim back the STCs once your system is fully installed.
There are so many systems available so it is impractical to price all types so here are the prices of the most popular family sized systems:
|Vitreous enamel tank,
close coupled,on roof
|200 litre||200 litre||330 litre||330 litre|
|Enduro panels||1 panel||1 panel||2 panels||2 panels|
|Installation||Solar to solar||Full||Solar to solar||Full|
|Price installed incl. GST*||$4808||$5470||$6483||$6978|
|Less STCs using
$35.00 per STC zone 3**
|-$595||-$595||– $1295||– $1295|
|Price after STCs*||$4213||$4875||$5188||$5680|
|Get a quote for your home|
Price for a standard installation at 1 March 2022. Don’t purchase without confirming this information is still current. *Cash price for a standard installation in the Perth metropolitan area. Call us for full details. **STCs are granted at the date of installation and as STCs vary frequently the STC price on the date of installation. Check out the current STC price from Green Energy . We, Air & Water, charge you the price after STCs on full installations. We reserve the right to charge you for any variation in the STC price between the date of the quote and the date the solar hot water system is installed. Air and Water also supply and install gas boosted and split systems.