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Envirosun Products

Australia's most complete hot water range. Backed like no other.

Solar, heat pump, gas — whatever your water heating needs, Envirosun has a system for it. Every product is Australian-designed for Australian conditions, backed by industry-leading 10-year transferable warranties* and engineered to ensure serious long-term savings. One range. One local team. No runaround.

Products

Solar Hot Water

Proven Australian solar technology harnessing the sun to heat your water, reducing running costs year-round. Two configurations — roof-mounted thermosiphon or ground-level split system.

TS Range
Solar · Thermosiphon

TS Range

Thermosiphon · Roof-mounted · No pump required · Electric or gas boosted · 167L–304L storage

No pump required for solar operation. Booster systems may require electricity or gas. Available in 167L (single collector, ideal for small homes) and 304L configurations, with open-circuit (TS) and closed-circuit freeze-protected (THX) options. All models feature premium 444 Grade Ferritic Stainless Steel tanks, high-performance flat plate collectors, and electric or gas boost, backed by a 10-year warranty.

Key Features

  • Available in 167L & 304L

    The compact TS170 is designed for small homes; the TS300 suits medium-to-large households.

  • No power required

    Thermosiphon flow is driven by the natural density difference — no pump or external power needed.

  • Roof-mounted integrated design

    Tank and collectors mount as a single unit on the roof, maximising solar efficiency and simplifying installation.

  • 444 Grade Stainless Steel tank

    European-sourced ferritic stainless steel tanks offer exceptional corrosion resistance for Australian conditions.

  • Peak performance collectors

    High-performance selective surface absorber panels, laser-welded to copper risers and headers, with weather-resistant aluminium trays, thermal insulation, and tempered solar glass.

  • THX freeze protection

    The THX300 closed-circuit variant uses a separate jacket chamber for freeze-free operation — suitable for frost-prone areas and poor water quality regions.

  • Advanced safety & control systems

    Technologically advanced safety and control systems with a closed circuit design for maximum solar collector protection. Supplied with PRV, PTR and ECV valves to comply with AS/NZS 3500.

  • Compliant & STC eligible

    Fully accredited by the Clean Energy Regulator. Listed on the CER Register and eligible for STCs.

At-a-Glance

TS170 · TS300 · THX300
Models TS170 · TS300 · THX300
Storage range 167L – 304L
Collector type Flat plate
Boost options Electric or gas
Freeze option THX300 (closed-circuit)

STC COMPARISON

Envirosun TS Plus TS3000/50 receives 40 STC 90%
Rinnai Prestige 300L receives 39 STC 87%
Sun Rain 300L 2P receives 35 STC 79%
Solahart 302J solar hot water system receives 28 STC 65%
Rheem 300L Hiline receives 28 STC 65%
*Small Technology Certificates (STC) are based on the 10-year Clean Energy Regulator data and reduce by 10% at the end of every year. 2024 STCs are 30% lower than above table. STC values are correct at the time of publication but will change each year due to Legislation on the 1st January.
All Envirosun® TS Range systems are fully accredited by the Australian Government Clean Energy Regulator and listed on the CER Register. Purchasing an eligible system may entitle you to Small-scale Technology Certificates (STCs) — renewable energy credits that reduce the upfront cost of your system based on your installation date and geographic location.

*Only THX (closed circuit) models are suitable and warranted for frost-prone areas.
AS Active Split Range
Solar · Active split

AS Active Split Range

Active split · Pumped circulation · Roof collectors · Ground-mounted tank · Electric or gas boosted

The Envirosun® AS Active Split System separates the solar collectors from the storage tank, giving you greater flexibility in installation and improved aesthetics. Roof-mounted flat plate collectors harvest the sun's energy and transfer it via a small circulation pump to a ground-level storage tank — which can be located indoors or outdoors. With the latest collector technology and advanced electronic controls, the AS range delivers maximum solar absorption and storage across all Australian climates.

Key Features

  • Ground-mounted tank

    The storage tank sits at ground level — indoors or outdoors — for easier access, reduced roof load, and installation flexibility.

  • Roof-installed solar collectors

    High-performance flat plate collectors on the roof capture maximum solar energy and feed it to the storage tank.

  • Active pumped circulation

    A small circulation pump, controlled by an electronic microprocessor, moves heated water from collectors to tank efficiently.

  • Smart AS system controller

    The DeltaSol® B controller uses two temperature sensors to compare collector and tank temperatures, activating the pump only when the collector is 10°C hotter than the tank.

  • Overheating & frost protection

    The controller includes overheating protection, cooling for high temperatures, and frost risk reduction.

  • Greater capacity

    Available in 320L and 420L tank options, with up to three collectors — suited to larger households and higher demand.

  • Latest collector technology

    E20HS selective surface collectors with laser-welded copper risers, weather-resistant aluminium trays, thermal insulation, and tempered solar glass maximise solar absorption.

  • Compliant & STC eligible

    Fully accredited by the Clean Energy Regulator and listed on the CER Register. Eligible to generate STCs.

At-a-Glance

AS315/40Se · AS400/40Se · AS400/60Se
Models AS315 · AS400
Storage range 320L – 420L
Collector type Flat plate (E20HS)
Controller DeltaSol® B
Boost options Electric or gas

STC COMPARISON

Envirosun AS 400/60 solar hot water system receives 40 STC 87%
Dux 315L 2P solar hot water system receives 39 STC 85%
Rinnai 315L Sunmaster solar hot water system receives 36 STC 75%
Chromagen 300 solar hot water system receives 30 STC 65%
Solahart 325 split solar hot water system receives 30 STC 65%
Rheem 325 Lowline solar hot water system receives 30 STC 65%
*Small Technology Certificates (STC) are based on the 10-year Clean Energy Regulator data and reduce by 10% at the end of every year. 2024 STCs are 30% lower than above table. STC values are correct at the time of publication but will change each year due to Legislation on the 1st January.
Envirosun AS solar hot water systems are fully accredited by the Australian Government Clean Energy Regulator and listed on the CER Register. Purchasing an eligible system may entitle you to Small-scale Technology Certificates (STCs) — renewable energy credits that reduce the upfront cost of your system. The number of STCs is determined by your installation date, system size, and geographic location. The deeming period reduces annually until the scheme closes in 2030.
Envirosun Solar Hot Water Range
Specification TS300 TS300 TS170 THX300
SYSTEM
Model TS300/40Se TS300/60Se TS170/40Se THX300/40Se
CER code TS300/40/O/E24/S2/E20HS TS300/60/O/E24/S2/E20HS TS170/20/O/E24/S2/E20HS TS300/40/C/E24/S2/E20HS
Storage capacity 304L 304L 167L 304L
Mass empty 129kg 144kg 76kg 135kg
Mass full 437kg 453kg 251kg 454kg
Footprint 2,238 x 2,600mm 3,260 x 2,600mm 1,400 x 2,600mm 2,238 x 2,600mm
Boost capacity 140L 140L 140L 140L
TANK
Model TS300/O/E24/S2 TS300/O/E24/S2 TS170/O/E24/S2 TS300/C/E24/S2
Mass empty 59kg 59kg 38kg 77kg
Mass full 363kg 363kg 206kg 393kg
Footprint 650 x 2,150mm 650 x 2,150mm 650 x 1,264mm 650 x 2,150mm
Height 600mm 600mm 600mm 600mm
COLLECTORS
Model E20HS E20HS E20HS (E20HA optional) E20HS
Quantity 2 3 1 2
Mass empty (each) 27.5kg 27.5kg 27.5kg 27.5kg
Mass full (each) 29.2kg 29.2kg 29.2kg 29.2kg
Footprint (each) 1,235 x 2,000mm 1,235 x 2,000mm 1,060 x 2,000mm 1,235 x 2,000mm
Height 70mm 70mm 70mm 70mm
ELECTRIC BOOSTER
Rating 2.4kW 2.4kW 2.4kW 2.4kW

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