Solar Appliances
Solar AC, geyser, lights, pumps and fans: how to power each one.
Solar appliances · Water heaters
Solar Geyser Price in Karachi
A solar geyser heats water directly from sunlight, so it needs no electricity for heating. The tank size and the type decide whether it pays off.
- ✓ Solar thermal explained
- ✓ Tank sizing by family
- ✓ Free estimate on WhatsApp
Two kinds of solar geyser
When people in Karachi say solar geyser, they mean one of two things. A solar thermal water heater uses sunlight directly to heat water in collectors on the roof. An electric geyser run from a home solar system uses panels, an inverter and a heating element.
The first uses sunlight for heat and needs no inverter. The second is simpler to fit but draws a lot of electricity. The two have different costs, different upkeep and different results, so choose before you ask for a price.
Karachi winters are mild and sunshine is plentiful, with about 8.1 hours a day on average, so solar thermal suits the climate well.
Solar geyser prices we quote
Prices depend on the tank size and the type. Prices include the heater but not roof modification.
| Item | Detail | Price (PKR) |
|---|---|---|
| Solar water heater | 150 to 300 litre systems | Contact us for latest prices |
| Solar geyser 150 litre | Small family | Contact us for latest prices |
| Solar geyser 300 litre | Large family or guesthouse | Contact us for latest prices |
Prices change with the exchange rate and stock. Contact us for the latest prices.
Solar thermal, electric on solar, or gas
Each option suits a different house.
| Point | Solar thermal heater | Electric geyser on solar | Gas geyser |
|---|---|---|---|
| Energy source | Sunlight directly | Solar electricity | Piped gas supply |
| Needs an inverter | No | Yes | No |
| Hot water at night | Yes, from the insulated tank | Only with battery or grid | Yes |
| Running cost | Very low | Low by day, high otherwise | Depends on gas supply |
| Upkeep | Tubes and tank need checks | Element and thermostat | Burner and flue |
| Best for | Roof with sun and steady use | Homes with a large solar system | Homes with reliable gas |
Sizing the tank
A common rule of thumb is about 30 to 50 litres of hot water per person per day, depending on habits. A family of five therefore needs roughly 150 to 250 litres. A 150 litre tank fits a small household. A 300 litre tank suits a larger family or a guesthouse.
To see why electric heating is costly, work out the energy. Heating 150 litres of water by 30°C takes about 5.2 kWh. That is a large part of a day of output from a small solar array, before any other load. A solar thermal heater collects that heat from the sun directly.
If your hot water use is only for a short morning shower, the saving is smaller. Tell us how many people use hot water and when.
What to ask before you buy
The quality of a solar geyser lies in details you cannot see from the road.
- Type of collector. Flat plate or evacuated tube. Ask about the build and the warranty.
- Low-pressure or pressurised. A tank-fed low-pressure heater is simpler. A pressurised one suits taps and showers on a higher floor.
- Tank insulation. It decides whether the water is still hot the next morning.
- Electric backup element. A backup helps on cloudy days. Ask how it is wired and controlled.
- Water quality. Hard or salty water leaves scale in tubes and tanks. Ask how to flush it.
- Roof space and weight. The collector and the full tank must sit on a safe, flat, sunny spot.
Is it worth it for your home?
A solar thermal heater pays off most where hot water use is steady and the alternative is expensive electricity or a gas supply that is unreliable. If your house already has a good gas supply and light hot water use, the payback is slower. We tell you honestly which case fits. The solar appliances guide covers the other appliances you can run on solar.
FAQs
Questions people ask us
Short answers. For your own property, send us your electricity bill and roof details.
Ask on WhatsAppIt depends on the tank size, the collector type and the brand. Send the number of people and we will quote a size.
Roughly 30 to 50 litres per person per day. A family of five often uses a 150 to 250 litre system.
At a lower output. A backup element or your existing geyser can cover cloudy days.
A solar thermal heater uses sunlight for heat and needs no inverter, so it is efficient. An electric geyser on solar is simpler to fit but draws a lot of power.
Yes. Tubes, tank and fittings need checks, and hard water needs flushing. Ask for care advice when you order.
Related pages
3 kW, 5 kW, 6 kW Systems
3 kW, 5 kW and 6 kW systems: output, roof area, loads and quote checks.
Accessories
Mounting structure, cable, connectors, breakers and charge controllers explained.
Solar Guide
How solar works, what Karachi's climate means, and how to plan a project.
Which solar geyser fits your family?
Tell us how many people use hot water and where your roof gets sun. We will recommend a size and give you a free estimate.