Tell us about your facility. An engineer will reply with sizing questions or a quote.
Solar water heating · Saudi Arabia
From a rooftop thermosyphon unit for a villa to a central forced circulation system for a hotel, compound or hospital. Hi-Best reviews your project, recommends the right configuration, then supplies, installs and services it.
No need to know the system size. Tell us the building type and roughly how many people use hot water.
Why solar water heating
Water heating runs every day in villas, hotels and accommodation. A correctly sized solar system lets the sun do most of that work, with backup heating ready for peaks and low-sun days.
Solar collectors pre-heat the water, so electric or other backup heaters run far less often than in a conventional setup.
Closed-circuit systems keep supply water out of the collectors, which protects them against scaling. The EUROSTAR ECO solar loop does not need refilling.
Pressure-cast polyurethane insulation keeps stored water hot for up to 48 hours (manufacturer figure for EUROSTAR tanks).
An electric element, your existing water heater or a heat pump can top up the temperature when solar alone cannot meet demand.
How it works
Solar collectors capture heat, a closed loop carries it to an insulated tank, and a backup heater covers anything the sun cannot.
Flat-plate collectors on the roof absorb sunlight through low-iron tempered glass onto a selective absorber.
A heat-transfer fluid circulates between the collectors and the tank, separate from the water you use.
A heat exchanger warms the stored water and insulation keeps it hot until it is needed.
An electric element or your existing heating takes over on low-sun days or at peak demand.
Choose your system
Not sure which one fits? Send us the building type and number of users and our engineers will recommend one.
Rooftop · No pumpBest for: villas, private homes, and compounds where each unit gets its own heater.
Central plant · PumpedBest for: hotels, staff accommodation, hospitals, compounds and commercial buildings with high or variable demand.
| Thermosyphon | Forced circulation | |
|---|---|---|
| Typical use | Villas, homes, one unit per dwelling | Hotels, hospitals, accommodation, commercial |
| Circulation | Natural, driven by temperature difference | Pump station with temperature controller |
| Tank position | On the roof, above the collector | Anywhere, usually a plant room |
| Scale | Small to medium daily demand | Medium to very large daily demand |
| Maintenance | Minimal: anode and visual checks | Periodic checks of pump, sensors, controller |
| Roof load | Full tank weight on the roof | Only collectors and frames on the roof |
General guidance. Final selection depends on your demand, roof and plant room, as reviewed by our engineers.
Technical specifications
Manufacturer data for the systems we supply. Your proposal will confirm the exact model, collector area and tank size for your project.
| Model | Tank (L) | Collectors | Collector area | Tank size |
|---|---|---|---|---|
| 80-1-S100 | 80 | 1 | 0.98 m² | 870 × Ø440 mm |
| 100-1-S125 | 100 | 1 | 1.23 m² | 1030 × Ø440 mm |
| 125-1-S200 | 125 | 1 | 1.88 m² | 1150 × Ø440 mm |
| 150-1-S200 | 150 | 1 | 1.88 m² | 1195 × Ø500 mm |
| 150-1-S230 | 150 | 1 | 2.28 m² | 1195 × Ø530 mm |
| 150-2-S150 | 150 | 2 | 2.96 m² | 1195 × Ø500 mm |
| 200-1-S230 | 200 | 1 | 2.28 m² | 1215 × Ø530 mm |
| 200-1-S260 | 200 | 1 | 2.64 m² | 1215 × Ø530 mm |
| 200-2-S150 | 200 | 2 | 2.96 m² | 1215 × Ø530 mm |
| 200-2-S200 | 200 | 2 | 3.76 m² | 1215 × Ø530 mm |
| 300-2-S200 | 300 | 2 | 3.76 m² | 1905 × Ø530 mm |
| 300-2-S230 | 300 | 2 | 4.56 m² | 1905 × Ø530 mm |
Source: SOLE S.A. EUROSTAR ECO specifications. Full dimensions, weights and installation details are in the datasheet. Warranty terms are confirmed in your quotation.
| Kit | Storage tank | Collectors | Glycol (18 kg) |
|---|---|---|---|
| FCK-150 | BL1 · 150 L | 1 × 2.70 m² | 1 |
| FCK-200 | BL2 · 200 L | 2 × 2.00 m² | 2 |
| FCK-300 | BL2 · 300 L | 3 × 2.50 m² | 3 |
| FCK-420 | BL2 · 420 L | 3 × 2.70 m² | 3 |
| FCK-500 | BL2 · 500 L | 4 × 2.00 m² | 4 |
Each kit also includes a pressure regulator, solar pump station, 25 L expansion tank, support frames and fittings. Source: SOLE S.A. FCK brochure.
For hotels, hospitals and accommodation with demand beyond a single kit, collector arrays, storage volume, pumps, controls and backup are engineered for the project. We share the selected equipment datasheets with your consultant for review.
Applications
The strongest cases are buildings that use hot water every day, in predictable amounts.
Family bathrooms, kitchens and laundry.
Typically thermosyphonIndividual units or a shared central plant.
Thermosyphon or centralGuest rooms, kitchens and laundry with morning and evening peaks.
Typically centralHigh occupancy with concentrated shower times.
Typically centralContinuous demand where reliable backup matters.
Central with backupGyms, clubs, schools and facilities with daily hot water use.
Depends on demandHave a building that's not listed? Tell us how it uses hot water and we'll tell you whether solar makes sense.
Our engineering approach
Two buildings with the same floor area can need very different systems. Before recommending equipment, our engineers look at how your building actually uses hot water.
Incomplete information is normal at the first enquiry. A building type and a rough number of users is enough to start.
Building type, city, number of users, and a drawing or roof photo if you have one.
We assess demand, peak loads, available space and how solar connects to your existing system.
You receive the recommended configuration with equipment datasheets for review.
A clear quotation covering supply, installation, commissioning and service.
Project references
From an energy city to a medical centre and a 5-star hotel, here is what Hi-Best has designed, supplied and installed.
Efficient solar hot water solution
A complete solar water heating system integrated into the building to supply hot water, reduce electrical demand and improve the overall efficiency of the facility.
High-volume, energy-efficient hot water
A complete solar water heater system for the medical centre's high hot water demand, improving heating efficiency and lowering energy costs without compromising patient care.
High-efficiency domestic hot water
A high-efficiency solar water heater system providing a consistent domestic hot water supply while reducing energy costs and environmental impact.
Energy-efficient domestic hot water
A thermodynamic solar system that modernised the hotel's domestic hot water supply, cutting heat loss during delivery and lowering operating energy costs.
Technical quotation
You don't need to choose a tank size or collector model. Our engineers work that out from your details.
An engineer will reply with a few sizing questions or a proposal.
FAQ
Something else on your mind? Our engineers are a message away.
For a villa or individual homes, a rooftop thermosyphon unit is usually the simplest choice. For hotels, hospitals, staff accommodation and other buildings with high or concentrated demand, a central forced circulation system is normally needed. We confirm the choice after reviewing your demand, roof and plant room space.
In most cases, yes. Solar can pre-heat the water feeding your existing heater, boiler or heat pump, which then only tops up the temperature. We check the existing equipment and pipework during the technical review.
Every system includes a backup source. Thermosyphon units have a built-in electric element with a thermostat. Central systems can use an electric element, your existing boiler or a heat pump. Insulated tanks also keep water hot for many hours after sunset.
A single-collector thermosyphon unit needs roughly the footprint of one collector plus its frame, about 1 to 2.6 m² of collector area, while two-collector units need about twice that. Central systems need space for the collector array on the roof and room for storage tanks in a plant room. A roof photo or drawing lets us check this quickly.
The systems we supply use a closed solar loop, so mains water never passes through the collectors. That protects them from scaling. Tanks are glass-enamelled with a magnesium anode against corrosion. Overheating protection and mixing valves are specified by our engineers for each project.
Thermosyphon units need very little: periodic visual checks, occasional glass cleaning in dusty areas, and anode inspection. Forced circulation systems also need periodic checks of the pump, sensors, controller and fluid. Hi-Best services the systems we install.
Building type and city, the number of users (or rooms, beds, apartments), your existing water heating if any, and a roof photo or drawing if available. If you know the daily hot water volume or required temperature, include it, but it is not required to get started.
Warranty terms depend on the manufacturer and model selected for your project. They are stated clearly in your quotation, together with our installation and service scope.
