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  • Vertex Solar Spa/Pool heating Systems

Flood Prime Vertex Solar Spa Heating System - 3 OKU Panels / 60W Pump Kit

Vrtx 60W Spa
40.00 KGS
Calculated at checkout

Product Description

Vertex™ Flood Prime - Solar Pool & Spa Heating System
3 OKU Panels + 60W Pump Kit (for 1st Story Roof < 3.5m Lift)

Vertex system flyer

Is your spa (or pool heating system) costing you a small $$$ fortune $$$ to run? The bad news is that it's going to get a lot more expensive with electricity prices set to double over the next few years.

The good news is that there is now a much smarter way to offset heating costs! Using super efficient low flow collectors the innovative Vertex Solar™ pool heating system combined with a solar blanket can easily boost water temperatures to comfortable levels during all of those warmer spells when everyone wants to jump in the water - with a Vertex system you get most of the benefits of solar for a fraction of the upfront costs and ZERO ongoing costs. That's right a Vertex system is solar powered and is 100% free to run.

If you already have an existing gas or electric heater, you can still benefit from our system by offsetting utility bills and extending the life of your heater (by reducing its on time).

    brochure download                        manual download

Vertex System Revisions

  • Version 2: Added panel mounted under-temperature thermostat to prevent spa cooling during cold by sunny spring days. Added stronger pumps and a new reconfigured position for the vacuum release also improved flow rates.
  • Version 3: Removed the need for any 12V electrical work with snap lock electrical connectors and versatile extension cord. Also added non-return valve and by-pass line.
  • Version 4: NOW! An innovative new plumbing arrangement with a self-clearing air bubble pump pre-filter and a post pump air bubble removal chamber makes the system almost completely impervious to pump burnout from air-locks & blocked flow.

System Features

No Emissions

ZERO electricity usage - help combat climate change by reducing your emissions Clean potable-grade HDPE polymer & silicon joiners, no rubber or plasticized PVCs  Uses only small pumps, which means the system is whisper quiet Performance when you need it most as compared to tubular rubber mat collectors Safe extra low voltage, low amps ~ 18VDC, 3.5Amps Max, with lock and go electrical connectors.


No mains pump, the
system is fully powered
by a small  solar PV
Cockatoo and Hail proof, made from solid HDPE German quality HDPE polymer collectors should last a minimum of 35 years Fully automated & self-regulating, install & forget - sunlight turns the system on/off Simple system design means unrivalled reliability and easy
of service

Compare Features Vertex™ System Traditional Rubber Tube System
Uses Mains Power tickNo  cross Yes
Reduces PV Solar Feed-ins tickNo cross Yes
Roof Space Requirements Requires Less Space Uses More Space
Needs Periodic Winter Flushing tickNot Required cross Required
Potable Polymers tick Yes cross No
Cockatoo Proof tick Yes cross No
Animal Proof tick Yes Depends?
Hail Proof tick Yes Depends?
Connection Seals  Clamped Silicon Joiners  Unclamped Plastic Barbs
Connection Clamps Stainless Steel None or Plastic
Roof Attachment Means Stainless Steel Straps Silicon Glue

Ideal Applications
  • Heat spa or larger spa pools
  • Off-set utility bills for gas or electric heated spa or spa pools
  • or heat smaller above ground pools
The Vertex Solar™ system is sold as an easy to setup DIY 12V kit. It's separate from your filter system and requires no mains 240V power connections.  Includes a comprehensive step by step installation manual and can be put together in a few hours as a fun project.

How much can I save on heating costs?

This depends on what you're using to heat your pool, swim spa or spa pool and where you are located. The table below gives the heat energy collected per (1.1m2) collector across an entire swimming season and the equivalent cost of this heat energy obtained using either gas, electric heat element or heat pump units.

Energy savings per collector across a swimming season

Average Daily Seasonal Insolation (1.1m²) Energy Collected Gas (1kWh=3.6 MJ) Electric Element Offset Heat Pump Offset
Melbourne (Oct-Mar) 6.7 kWh 733 kWh $91 $165 $41
Sydney (Oct-Apr) 6.5 kWh 696 kWh $86 $157 $39
Brisbane (Oct-Apr) 6.7 kWh 716 kWh $89 $161 $40
Assumptions To obtained the anticipated energy savings simply multiply the size of your system by the relevant energy cost - hence for a 4 panel spa heating system in Sydney, off-setting an electric heat element the anticipated annual savings are $157 × 4 =  $628.

What's Included

The Vertex Flood Prime system listed here contains:

OKU Collector Kit   
  • 3   x   OKU Dual Header Collector
  • 18 x   13mm stainless straps
  • 6   x   Silicon joiners
  • 12 x   All stainless hose clamps
  • 2   x   40mm barb to 25mm PVC adapters
Pump and Non-return Kit   
  • 1 x     Solar powered pump with connector
  • 1 x     PVC non-spring loaded non-return and pump adapter kit
Solar PV Panel Kit
  • 1 x     Solar PV electric panel
  • 1 x     5m PVC wire with connector
  • 1 x     Under-temperature thermostat installed
Safety Over-Temperature Cutout Kit (cutout at 30-40°C**)
  • 1 x     Inline connector with 2m wire connected to thermostats
  • 1 x     U-Channel aluminium thermostat mount
  • 1 x     Armaflex insulation kit
  • 3 x     9mm stainless traps
  • 1 x     5m PVC extension wire
Quality Lever Action Vacuum Release Valve + Assembly
  • 1 x    Vacuum release valve
  • 1 x    Vacuum release elbow
  • 1 x    Vacuum release reducer
Bubble Chambe and Strainer
  • 1 x    Vertex Strainer / Air filter with by-pass line
  • 1 x    Strainer flex pump line with pump adapter
  • 1 x    20mm PVC bubble chamber
See manual for pictures of included components, freely be downloaded from our EcoOnline download page.

System Features & Specifications

brochure download


EcoOnline™ offers the following Warranties on the Vertex system components:
  • 20 year return to base Warranty on all MOTECH cell solar PV panels
  • 35 year return to base limited Warranty on all Vertex system HDPE collectors
  • 1 year return to base limited Warranty on all Vertex system pumps
See Terms and Conditions page for further details.

Vertex system installation

panel_connections    panel_caps

panel_cross_section1    panel_cross_section2

OKU logo


Q. How many panels do I need?
A. For vinyl foam covered spa pool or swim spa please use our covered spa interactive sizing calculator to accurately size your system. For uncovered or solar blanket covered swim spa or small pools please use our uncovered spa interactive sizing calculator to accurately size your system. If you have any difficulty please contact us. 

Q. Can I power this system using my own solar panel?
A. Yes - but only if it the recommended wattage, i.e. 40W or 60W. The specific power of the solar panel is an integral design aspect of the control system. Over-powering the pump will result in the system running in cloudy conditions which would cool your spa water and be counterproductive.

Q. What can I expect from the system throughout the year and in winter?
A. Typically the system is sized to supply enough energy to bring the spa up to working temperature for about half the year in Southern states and three quarters of the year for mid latitude Australian states. In winter in Southern Australian states the system will struggle to come ON. Outside air temperatures need to be at least 16-18C with full sun before an unglazed panel system has any chance at harvesting energy at typical spa bath temperatures 35-38C.

Q. Is this system stand alone?
A. Normally no - in winter in Southern Australian states the system may not even turn ON. On demand auxiliary back up heating is required if you want on demand spa usage. On the other hand if you want to use your spa opportunistically when it is up to temperature, then the system can be considered stand alone in that respect.

Q. What is the freight cost to my postcode?
A. Please use the shipping calculator link in the listing. Simply enter your postcode and the correct cubic weight of the system to ship given in the listing below. We will use this cost on the invoice.

Q. Can I use glazed panels with this system?
A. Strictly No - For a number of safety reasons we strongly recommend you not use glazed panels with our system, nor should you install glazing over the panels. Glazed panels have a much higher stagnation temperature and can boil and potentially sputter boiling hot water, or otherwise send damagingly high temperature water through the system. The Vertex system is designed with safety in mind first and foremost.

Q. The 40DegC over-temperature thermostat is too high is it adjustable?
A. The over-temperature thermostat is attached to the return pipe - hence the average spa water temperature should not reach 40DegC. It could however reach 38DegC depending on the number of panels installed and the flow rate. If a lower temperature is required we recommend a PVC ball valve is used to restrict flow and increase the temperature differential across the panels, this will drop the average spa water temperature down during thermostat cut-off. This indirect form of temperature control is preferred as it is gentler on the system.

Q. Do we have installers?
A. At present unfortunately no we do not have installers.

Q. Can I download your comprehensive manual before I purchase?
A. Yes, in fact we highly recommend you check over the manual to get a good idea of installation requirements before you purchase. The manual can freely be downloaded from our EcoOnline download page. Please, note there are two systems, the flood prime and self prime, please download the correct manual.

Q. Can I slow the flow to increase the temperature gain?
A. No, this is a common misconception. Slowing the water flow will result in a warmer outlet but also less harvested energy overall since there is much less warm water flowing. This is because the panel is being made to work at a higher temperature and hence a lower efficiency. In fact the Vertex system uses this exact principle to reduce cutoff water temperatures. Faster flow rates better strip the heat from the panels (up to a point of diminishing benefit). Optimal flow rate is achieved at 5L/min/panel.

Q. Can I undersize my system and upgrade as needed later?
A. Yes, however if you going to the trouble of purchasing and installing the Vertex system the cost of an extra panel or two is not significant, hence we recommend the system be sized right the first time.

Q. Can I tap into my spa bath lines?
A. No, we don’t recommend this due to the potential for unforeseen interference with spa bath systems. The Vertex system should be installed as an independent system with dedicated outlets/inlet into the spa.

Safety Requirements and Product Limitations

The following outlines mandatory suitability and safety requirements for installing a Vertex Solar™ heating system. Please read carefully and consider all points, if any of the following requirements cannot be meet, a Vertex Solar™ system should NOT be purchased or installed.
  1. The Vertex system is to be used for chlorinated or otherwise treated outdoor spas and pools only.
  2. Under no circumstances should collectors be installed so as to compromise the effectiveness of a child pool or spa fence safety barrier by providing a climbable object.
  3. Due to the potential of falling from heights, mounting the solar panels on a roof or structure at heights should only be undertaken by a professional solar panel installer, unless you are accustomed to and confident of performing the work.
  4. Due to the remote possibility of a water drain down event caused by the Vertex system, this system should not be installed on a pool or spa pool with a mains power electrical devise that does not have a working over temperature protection device and/or will not fail safely in the event of dry running.
  5. At present this collector array system is not recommended for installations in cyclonic regions C or D, or on houses situated on top of hills exposed to strong winds, or on second story (or higher) roofs.
  6. The Vertex System is not self-priming and requires the installation of the pump outside of but below the waterline of your pool/spa.
  7. We recommend collectors be installed with a minimum 5° pitch to ensure reliable evacuation of air bubbles.

Wind Region Roof Installation Guide

Wind Region A Wind Region B Wind Region C
Single Story Metal Roof Install tick Okay tickOkay Sheltered Location Only
Single Story Tile Roof Install tickOkay Sheltered Location Only cross Not Recommended 

Shipping ETA & Cost Estimate

You can check the shipping ETA, factory opening times and estimated shipping cost on our calculator here:
  Click here for EcoOnline shipping info

Simply put in your post code and the cubic weight of the item to be shipping:

Cubic weight for this listing is 40 kgs

Please note: the shipping rate at checkout may differ slightly, for exact quotes please use the checkout.

Why buy from us?

  • Lowest price guarantee
  • Core values centred around quality products
  • We constantly strive to innovate
  • We stock spare parts for all our products  
  • Courteous, knowledgeable and professional sales and tech support
  • Australian owned and operated business
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