Description

100L Apollo High-Pressure Thermosyphon Solar Geyser – Complete System

The 100L Apollo high-pressure thermosyphon solar geyser is a compact solar hot water system for smaller households, flats, cottages, staff rooms, garden units and properties with moderate daily hot water demand. It is designed for customers who want a practical solar water heating solution without choosing a larger system than the property needs.

This system is generally suitable for approximately 1 to 2 people, depending on shower habits, kitchen use, water-saving habits and backup heating settings. It can work well where hot water demand is predictable and a large storage tank is unnecessary.

The Apollo thermosyphon design uses solar energy to heat water during the day. As the solar collector warms the water, natural circulation moves heated water into the storage tank and cooler water toward the collector. This allows the system to operate during normal solar heating without relying on a circulation pump.

Customers comparing smaller solar hot water options can also view our solar geysers page for other Apollo sizes and complete systems.

Compact Solar Hot Water for Smaller Properties

The 100L Apollo high-pressure thermosyphon solar geyser is a good fit for smaller properties where hot water demand is moderate. It can suit single-person homes, couples, flats, staff accommodation, garden cottages, granny flats and compact rental units.

A smaller system can be a practical choice when the property does not need the larger storage capacity of a 150L, 200L or 300L geyser. It can reduce unnecessary oversizing while still giving the customer solar-assisted hot water and electric backup support.

The correct size depends on daily use. Short showers, limited bath use and controlled kitchen demand can make a 100L system very suitable. However, if multiple people shower close together, baths are used often, or the geyser regularly runs out of hot water, a larger option may be more appropriate.

Customers who need more capacity can compare this option with a 150L high-pressure solar geyser for small to medium households.

Complete Apollo Thermosyphon Solar Geyser System

This is a complete Apollo solar geyser system, not only a loose geyser tank. The system includes the 100L Apollo high-pressure solar geyser, solar collector, roof mounting frame, valves, pipework, fittings and insulation where specified.

The tank stores the heated water, while the collector gathers energy from the sun. The frame supports the roof-mounted equipment, and the plumbing components help manage pressure, flow direction, expansion and safe operation.

Because this is a high-pressure solar geyser, its components must be compatible with the property’s pressurised hot water plumbing. Suitable pressure control, safety valves, mounting components, pipe routing and insulation are important considerations for reliable operation.

How Thermosyphon Circulation Works

A thermosyphon system uses the natural movement of hot water. When the sun heats the water in the collector, the hotter water rises into the storage tank. Cooler water moves down toward the collector to be heated. This creates a natural circulation cycle while there is enough sunlight and temperature difference.

This design is simple and practical because normal solar circulation does not require a pump. Fewer moving parts during solar heating can make the system easier to manage.

The performance of the system depends on available sunlight, collector position, roof angle, shade, weather, pipe insulation and water usage habits. Good solar exposure helps the system make better use of the sun during the day.

High-Pressure Hot Water for Daily Comfort

The 100L Apollo system is designed for high-pressure hot water use. This means it can suit properties with normal pressurised plumbing, mixer taps, showers and standard bathroom or kitchen fixtures.

Even though the storage capacity is compact, the system still needs suitable plumbing protection because it operates as part of a pressurised hot water system. Appropriate valves and pressure control are important for safe operation.

When matched to the right household size and operating conditions, a 100L high-pressure solar geyser can provide comfortable hot water for everyday use while helping reduce electricity usage.

Helps Reduce Electricity Usage

The main benefit of the 100L Apollo high-pressure thermosyphon solar geyser is that it uses solar energy to heat water during the day. This can reduce how often the electric element needs to heat the water.

In smaller homes, a geyser can still use unnecessary electricity if the element is left on for long periods. Solar heating helps reduce that reliance by using sunlight as the main heating source when conditions are suitable.

The amount of electricity saving depends on weather, roof position, shade, insulation, usage habits and controller settings. The system works best when solar heating is allowed to do most of the daytime work and electric backup is used only when needed.

Electric Backup Heating When Needed

The 100L Apollo solar geyser can include electric backup heating so the property still has hot water support during cloudy weather, winter periods, early mornings, evenings or heavier use.

This backup support is important because hot water is not always needed only when the sun is strongest. Many customers need hot water early in the morning or after sunset. Electric backup makes the system practical for normal daily routines.

The goal is to reduce unnecessary element use, not to remove backup heating completely. With suitable settings, the system can use solar heating during the day and backup heating when the stored water needs a boost.

Geyserwise Controller Option

A Geyserwise controller can be included with the 100L Apollo high-pressure thermosyphon solar geyser. The controller allows the customer to monitor the water temperature and control timed electric backup heating.

This is useful because the customer can see whether the solar collector has already heated the water enough. If the water is hot, the element does not need to switch on unnecessarily.

Timed backup heating can also be set around the customer’s normal routine, such as before morning showers or evening use. This helps make the system more convenient while keeping electricity usage better controlled.

Customers who want additional temperature management products can also view our solar geyser controllers page.

Roof Mounting and Collector Position

The 100L Apollo thermosyphon solar geyser is designed for a suitable roof position where the collector can receive good sunlight. Roof direction, roof pitch, available space, roof covering, shade and structural strength are important considerations when determining whether a property is suitable for the system.

Shade from trees, walls, chimneys, parapets or nearby buildings can reduce the system’s heating performance. A suitable position helps the collector receive stronger sunlight for more of the day.

The roof mounting frame must be compatible with the property’s roof structure. Tiled roofs, IBR roofs, corrugated roofs and other suitable roof types can have different mounting requirements.

Pipework, Insulation and Heat Retention

Pipe routing and insulation are important considerations for any solar geyser system. Long or poorly planned pipe runs can create unnecessary heat loss and make future maintenance more difficult.

Insulated pipework helps protect the heat collected by the solar system. This is especially important where pipes are exposed to wind, cold weather or long roof runs.

For a compact 100L system, good insulation helps make better use of the stored hot water. Because the tank is smaller, unnecessary heat loss should be avoided wherever possible.

Valves, Pressure Control and Safety Components

A high-pressure solar geyser requires suitable valves and safety components. These parts help manage pressure, expansion, water flow and safe operation.

Important valves should remain accessible for future inspection or maintenance. Suitable pressure-control and safety components help protect the geyser and the property’s hot water plumbing.

Because the system connects to pressurised plumbing, its valves and related components must be compatible with the system’s operating requirements.

Customers looking for related components can also view our solar geyser valves page for valve and pressure-control options.

What the 100L Apollo System Includes

The 100L Apollo high-pressure thermosyphon solar geyser system normally includes the following components, subject to the selected product package:

• 100L Apollo high-pressure solar geyser

• Thermosyphon solar heating collector

• Roof frame and mounting components

• Valves, piping and fittings

• Pipe insulation where specified

• Optional Geyserwise controller with timed backup heating

These components work together as a complete solar hot water system. The tank stores the heated water, the collector gathers heat from the sun, the frame supports the roof-mounted equipment, the valves protect the plumbing system, and the optional controller helps manage electric backup heating.

Available in South Africa

The 100L Apollo high-pressure thermosyphon solar geyser is available to customers in South Africa. It is a practical choice for smaller households and moderate-use properties that want a complete solar hot water system with electric backup support.

Customers should consider their property’s roof space, plumbing layout, water pressure and daily hot water use when deciding whether a 100L thermosyphon system is suitable.

Why Choose the 100L Apollo High-Pressure Thermosyphon Solar Geyser?

The 100L Apollo high-pressure thermosyphon solar geyser is a compact, practical and energy-conscious hot water solution for smaller properties. It offers solar heating during the day, high-pressure hot water delivery and backup heating when required.

For flats, cottages, staff rooms and small homes, it can provide a sensible balance between storage capacity, roof space and daily comfort. The thermosyphon design keeps normal solar circulation simple, while the optional controller helps manage electric backup more efficiently.

With suitable operating conditions, this Apollo system can provide reliable hot water, improved energy efficiency and long-term value for properties that do not need a larger solar geyser.