🏷️ Brand –
🔢 Model Number –
📦 Volume – L
📏 Width – mm
📐 Height – mm
🌍 Manufactured In –
🛠️ Cylinder / Heat Exchange Material –
🛡️ Cylinder / Heat-Exchange Warranty – Years
🔇 Noise Level – dBa
⚖️Dry Weight – kg
⚡ Energy Source – 📡 WiFi Controller Built-in or Compatible –
⏲️ Built-In Timer –
💡 LED/LCD Status Indicator –
📊 Coefficient of Performance (COP) –

iHeat 300L Single Panel Solar Hot Water System

The iHeat 300L Single Panel Solar Hot Water System is a roof-mounted electric boosted solar hot water system designed for smaller households, compact roof spaces and homes where a single collector system is the right fit.

It combines a 300L roof-mounted storage tank with a large single flat plate solar collector and electric boost backup. This gives homeowners solar-assisted hot water during suitable conditions, with electric boosting available when stored water temperature drops below the set point.

For homes with good roof exposure, moderate hot water demand and limited ground-level space, the iHeat 300L single panel system is a practical option for replacing an older roof-mounted solar hot water system or upgrading from a standard electric storage unit.

JR Gas & Water supplies and installs solar hot water systems across Brisbane, the Gold Coast, Logan, Ipswich, Redlands, Scenic Rim, Moreton Bay and surrounding South East Queensland areas.

Why Choose the iHeat 300L Single Panel Solar Hot Water System?

The iHeat 300L single panel system is designed for homeowners who want solar hot water in a compact roof-mounted format.

Key benefits include:

• 300L roof-mounted storage tank

• single high-performance flat plate solar collector

• electric boost backup

• close-coupled roof-mounted design

• thermosiphon circulation

• no electric circulation pump required

• open-loop solar hot water design

• all-copper collector with black chrome selective surface

• suitable for smaller households

• ideal for limited roof space

• practical replacement for existing roof-mounted solar systems

• WaterMark approved system range

• designed for Australian conditions

For the right home, this system provides a straightforward solar hot water setup without the extra roof space required for a twin panel system.

Best For: Who the iHeat 300L Single Panel Suits

The iHeat 300L single panel solar hot water system is well suited to:

• 1–3 person households

• couples and smaller families

• homes with moderate hot water use

• properties with good solar exposure

• homes with limited roof space

• single-storey homes with suitable roof access

• replacements of older roof-mounted solar hot water systems

• homeowners wanting electric boost backup

• homes where a twin panel system is not required

• buyers wanting a simple solar hot water setup

It is generally not the best option for larger families, heavy shower use, multiple bathrooms running at the same time, or homes with poor roof orientation and heavy shading.

What the iHeat 300L Single Panel System Is Best Known For

The iHeat 300L single panel system is best known for combining a full 300L storage tank with a compact single collector layout.

That matters because not every household needs a twin panel solar hot water system. A single panel setup is usually the better fit when:

• hot water demand is light to moderate

• roof space is tight

• the roof has strong solar exposure

• a compact system is preferred

• the household has fewer occupants

• the existing system is already roof-mounted

• the owner wants solar hot water with electric boost backup

This makes the iHeat 300L single panel system a practical middle ground: more storage than a smaller system, but less roof collector area than a twin panel solar setup.

Roof-Mounted Thermosiphon Design

The iHeat 300L single panel system uses a traditional close-coupled roof-mounted solar hot water design. The storage tank and solar collector are installed together on the roof, which keeps the main system components off the ground and makes good use of available roof space.

The system uses natural thermosiphon circulation. As water heats in the collector, it rises into the storage tank without needing a separate circulation pump. This keeps the system simple and low maintenance compared with pump-driven split solar systems.

Roof suitability still matters. The roof structure, pitch, orientation, shading, access and existing pipework all need to be checked before installation.

Single Flat Plate Solar Collector

The single collector setup is designed for smaller households, tight roof spaces and homes with strong solar contribution.

The confirmed single collector specification is:

The single panel design is especially useful where the roof has limited usable space or where a twin panel system would be unnecessary for the home’s hot water demand.

Electric Boost Backup

The iHeat 300L single panel system includes electric boost backup using an in-tank electric element.

The electric booster helps maintain hot water availability when solar input is not enough, such as during cloudy weather, higher-than-usual hot water use, winter conditions or periods of lower solar contribution.

This makes the system more practical for everyday use because the home is not relying on solar input alone.

iHeat 300L Single Panel Specifications

Specs should always be checked against the exact current unit supplied, site conditions and manufacturer documentation at the time of installation.

iHeat 300L Single Panel vs Twin Panel Solar Hot Water

The iHeat 300L single panel system is usually the better fit when:

• the home has 1–3 occupants

• hot water use is light to moderate

• roof space is limited

• the home has strong solar exposure

• a lower collector footprint is preferred

• the existing system is a single panel roof-mounted unit

• the household does not need high solar recovery

A twin panel solar hot water system is usually the better fit when:

• the household has higher hot water demand

• more people shower each day

• there are multiple bathrooms

• evening hot water use is heavy

• the roof has enough suitable space

• stronger solar recovery is required

The best choice depends on household size, shower habits, roof orientation, available roof space and how much hot water the home actually uses.

iHeat 300L Single Panel vs Standard Electric Hot Water

A standard electric storage hot water system is usually simpler and cheaper upfront, but it relies on electric heating rather than solar contribution.

The iHeat 300L single panel solar hot water system is the better fit when you want:

• solar-assisted hot water

• electric boost backup

• a roof-mounted system

• lower reliance on standard electric water heating

• a replacement for an older roof-mounted solar unit

• a compact collector layout

• a system suited to smaller households

A standard electric hot water system may still suit homes where roof mounting is not suitable, where roof access is difficult, or where the lowest upfront replacement cost is the main priority.

iHeat 300L Single Panel vs Heat Pump Hot Water

A heat pump hot water system is usually installed at ground level and uses heat from the surrounding air to heat the stored water. It can be a strong option for homes where roof-mounted solar is not suitable.

The iHeat 300L single panel solar system is better when:

• the home already has a roof-mounted solar system

• the roof has good solar exposure

• ground-level space is limited

• the homeowner prefers roof-mounted solar hot water

• a like-for-like solar replacement is practical

A heat pump may be better when:

• roof access is difficult

• the roof structure is unsuitable

• shading affects solar performance

• the customer wants a ground-mounted hot water system

• the home has solar PV and wants daytime electric hot water heating

Both options can work well in South East Queensland. The right choice depends on the property layout, budget, roof suitability and household usage.

Installation Requirements

A roof-mounted solar hot water system needs proper site assessment before installation.

Key installation factors include:

• roof structure and load capacity

• roof pitch

• roof orientation

• shading from trees or nearby buildings

• safe roof access

• crane or lifting access where required

• hot and cold pipework layout

• existing system location

• electrical boost connection

• tempering valve requirements

• pressure control valves

• drainage and relief valve discharge

• water quality

• local plumbing and electrical compliance

Because the tank and collector sit on the roof, the roof must be suitable for the system. The system also needs to be positioned to support safe access, good solar exposure and practical pipework routes.

Professional iHeat Solar Hot Water Installation in Brisbane & Gold Coast

JR Gas & Water provides professional solar hot water installation across Brisbane, the Gold Coast and South East Queensland.

A standard installation may include removing the old hot water system where required, lifting and positioning the new roof-mounted solar system, connecting compliant plumbing, arranging licensed electrical work for the boost connection where needed, fitting required valves, testing operation and commissioning the system.

Some installations may need extra work depending on roof access, roof condition, system weight, electrical requirements, pipework changes, valve upgrades, lifting access and whether the existing system is being replaced like-for-like.

Same-Day Installation Available on Suitable Jobs

Same-day installation may be available on suitable iHeat 300L single panel solar replacements, depending on stock, roof access, weather, lifting requirements, electrical readiness and the existing system setup.

Straightforward like-for-like replacements are usually the fastest. More involved jobs may take longer if roof access is difficult, the system location needs to change, electrical work is required, or the old unit is difficult to remove safely.

The goal is always to install the system properly, not rush a roof-mounted solar job that needs safe lifting, compliant plumbing and correct commissioning.

Why Homeowners Choose JR Gas & Water

Choosing the right installer matters with roof-mounted solar hot water because the final result depends on more than just tank size.

Customers choose JR Gas & Water for:

• licensed hot water installation

• practical solar hot water advice

• help comparing solar, electric, heat pump and gas options

• safe roof-mounted system replacement

• local service across Brisbane and the Gold Coast

• same-day installation on suitable jobs

• clear installation pathways

• lifetime workmanship warranty on installation

JR Gas & Water focuses on matching the system to the property, roof layout, household demand and long-term hot water needs.

iHeat 300L Single Panel Solar Hot Water for South East Queensland Homes

If you need an iHeat 300L single panel solar hot water system supplied and installed in Brisbane, the Gold Coast or South East Queensland, JR Gas & Water can help assess whether this style of system suits your home.

The iHeat 300L single panel system is best suited to smaller households with good roof exposure, moderate hot water use and a suitable roof structure. It is a practical option for homeowners wanting solar hot water with electric boost backup in a compact roof-mounted design.

Choose JR Gas & Water for expert advice, licensed installation and practical solar hot water solutions tailored to your property.

Solar Hot Water System Package Selection Guide

(Please rotate mobile device to landscape for easy viewing)

Choosing the right Solar hot water system package depends on your installation needs, household size, and whether additional electrical work is required. Use this guide to compare package levels and find the best fit for your home.

Selecting the right package helps streamline installation, but we understand that needs may change, and that the purchaser isn’t a plumber. We’re flexible and can make adjustments, such as upgrading to the next package as needed.

💡 Which Package is Right for You?

✅ Base – For compliant replacements
Ideal for identical direct swaps where the existing system meets compliance. No extra plumbing, electrical work or disposal required or included.

(EXAMPLE - A Rheem Loline 325 replacing complaint Rheem loline 325 not a Rheem loline 400l)

✅ Silver – For minor upgrades
Includes pipework alterations and a valve kit but does not include electrical modifications or system disposal. Designed for those swapping a similar system and working to a tight budget. 

(EXAMPLE - Swapping a 10year old Rheem Loline 400L with a new Rheem Loline 325 where the existing installation is good but requires pipework alterations to adapt the new unit and new valve set for warranty)

🏆 Gold (Best Seller) – For standard installations
Covers old system removal and plumbing modifications, making it the most common choice for standard installations.

(EXAMPLE - Swapping a 20year old Dux Ecosmart with a new Envirosun AS315, Strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

💰 Sapphire (Best Value) – For installations requiring electrical work
Adds electrical safety features like an isolator, safety switch, and cable extensions to ensure a compliant and safe electrical connection.

(EXAMPLE - Swapping an old Conergy High Mount Boosted Unit with a new Envirosun AS400 mid mount boosted system that requires a lower hardwired electrical connection, then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

✅ Diamond – For homes needing extensive electrical work
Provides extra plumbing and electrical modifications, including a new electrical circuit, making it ideal for homes without existing or undersized wiring for a solar system.

(EXAMPLE - Swapping an old solar system with undersized electrical with a new solar that needs its own dedicated 20amp electrical circuit, type then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)

✅ Platinum – The ultimate package
Includes everything – system relocation, extensive plumbing and electrical upgrades, solar circulating lines, and a new electrical circuit for complete installation flexibility.

(EXAMPLE - Replacing any existing system of any type then relocating it to a new position on the house that requires the electrical/plumbing to be installed or relocated to the new installation position)

🏆 Package Comparison Guide

Whenever a product is required, we only source from trusted, warranty‑backed manufacturers:

• Valves – AVG, RMC, Rye Metal (and subsidiaries)
• Copper – Type B Kembla or Crane
• PEX Systems - Ezipex
• Insulation – eFlex or K‑Flex
• Electrical switches & timers – Hager
• Conduit – Medium Duty PVC Vinidex or GTS
• Brassware – Brasshards
• Hydraulic crimp fittings – EziPress, Viega, Kembla
• Sealants – Loxeal

Feel free to let us know if you have any other preferred brands!

🛠 Need Help Choosing?

Not sure which package is right for you? Contact JR Gas & Water, and we’ll help you select the best solution for your home!

If you're in Queensland and considering a heat pump hot water system, look no further than JR Gas & Water. Here's why:

Experience and Expertise: JR Gas & Water has over 10 years of experience in the gas and plumbing industry. Their team of licensed and insured professionals is highly skilled and knowledgeable about all aspects of heat pump installation, maintenance, and repair. They can provide expert advice on the best system for your needs and ensure a smooth installation process.

Quality Products: JR Gas & Water uses only high-quality products from trusted brands to ensure your heat pump hot water system is reliable and efficient. They also offer a range of options to suit different budgets and requirements.

Competitive Pricing: JR Gas & Water offers competitive pricing for their heat pump hot water systems, ensuring that you get a great value for your investment. They also provide a detailed quote upfront, so there are no surprises or hidden costs.

Customer Service: JR Gas & Water is committed to providing excellent customer service. They are always available to answer any questions or concerns you may have and are committed to ensuring your satisfaction.

Local Business: JR Gas & Water is a locally owned and operated business in Queensland. By choosing them for your heat pump hot water installation, you are supporting a local business and contributing to the local economy.

Warranty and Guarantee: JR Gas & Water provides a warranty and guarantee on all their products and services, giving you peace of mind knowing that your system is covered in case of any issues.

Sustainable and Environmentally Friendly: Heat pump hot water systems are a sustainable and environmentally friendly option for heating water. They use renewable energy sources, such as air or ground heat, to heat water, resulting in lower greenhouse gas emissions and reduced energy bills. JR Gas & Water can help you make the switch to a more sustainable and cost-effective solution for your hot water needs.