How to Choose the Right Solar Water Heater Size for Your Home
Investing in a solar water heater is one of the smartest decisions for any Kenyan household. However, choosing the right size can be tricky if you’re not sure how much hot water your family needs. At Moffam Electricals, we guide homeowners every day in selecting the perfect solar water heater that balances comfort, efficiency, and cost.
Here’s a step-by-step guide to help you choose the right solar water heater size for your home.
1. Consider Your Household Size
As a rule of thumb, the bigger your family, the larger the tank you’ll need:
| Household Size | Recommended Tank Size | Example Usage |
|---|---|---|
| 1–2 people | 100–150 litres | Small homes, apartments |
| 3–4 people | 150–200 litres | Medium households |
| 5–6 people | 200–300 litres | Large families |
| 7+ people or commercial use | 300–500 litres+ | Hotels, hostels, institutions |
2. Daily Hot Water Usage
-
Showers: Average 30–50 litres per person
-
Kitchen & laundry: 10–20 litres per person
Estimate your family’s daily needs and match them to the right tank capacity.
3. Climate and Location
Homes in sunny regions of Kenya (like Mombasa or Kisumu) may need slightly smaller systems than cooler areas (like Nairobi highlands), where larger collectors improve performance.
4. Water Pressure System
-
Non-pressurized systems → Affordable, ideal for gravity-fed homes.
-
Pressurized systems → Better for modern homes with pumps, but require stronger tanks and fittings.
Moffam Electricals offers both options to suit your plumbing setup.
5. Budget and Future Growth
While smaller systems are cheaper (starting at KSh 45,000), it’s often wiser to invest in a slightly larger unit to accommodate future needs and avoid upgrades later.
Our Products
150-Liter High-Pressure Solar Water Heater
Original price was: KSh 115,000.00.KSh 110,000.00Current price is: KSh 110,000.00.
150L Heat Pipe Pressurized Solar Water Heater
Original price was: KSh 100,000.00.KSh 98,000.00Current price is: KSh 98,000.00.
150L Non-Pressurized Vacuum Tube Solar Water Heater
Original price was: KSh 67,995.00.KSh 65,995.00Current price is: KSh 65,995.00.
150L Pressurized Solar Water Heater with Heat Pipe Technology
Original price was: KSh 100,000.00.KSh 99,000.00Current price is: KSh 99,000.00.
150L Solar Water Heater – Non-Pressurized Stainless Steel Tank
Original price was: KSh 67,000.00.KSh 65,000.00Current price is: KSh 65,000.00.
150L Solar Water Heater – Pressurized Stainless Steel System
Original price was: KSh 103,000.00.KSh 101,999.00Current price is: KSh 101,999.00.
200 L Flat Plate Pressurized Solar Water Heater
Original price was: KSh 119,000.00.KSh 117,000.00Current price is: KSh 117,000.00.
200L Heat Pipe Pressurized Solar Water Heater
Original price was: KSh 115,000.00.KSh 114,000.00Current price is: KSh 114,000.00.
200L Non-Pressurized Stainless Steel Solar Water Heater
Original price was: KSh 80,000.00.KSh 79,000.00Current price is: KSh 79,000.00.
200L Non-Pressurized Vacuum Tube Solar Water Heater
Original price was: KSh 76,000.00.KSh 74,000.00Current price is: KSh 74,000.00.
200L Pressurized Solar Water Heater with Heat Pipe Technology
Original price was: KSh 114,000.00.KSh 113,000.00Current price is: KSh 113,000.00.
200L Solar Water Heater | Pressurized Stainless Steel Tank
Original price was: KSh 125,000.00.KSh 123,999.00Current price is: KSh 123,999.00.
200L Solar Water Heater Pressurized Flat Plate
Original price was: KSh 121,000.00.KSh 120,000.00Current price is: KSh 120,000.00.
250L Heat Pipe Pressurized Solar Water Heater
Original price was: KSh 135,000.00.KSh 134,000.00Current price is: KSh 134,000.00.
250L Non-Pressurized Vacuum Tube Solar Water Heater
Original price was: KSh 85,995.00.KSh 83,995.00Current price is: KSh 83,995.00.
250L Pressurized Stainless Steel Solar Water Heater
Original price was: KSh 139,000.00.KSh 138,000.00Current price is: KSh 138,000.00.
250L Solar Water Heater – Non-Pressurized Stainless Steel Tank
Original price was: KSh 97,000.00.KSh 95,000.00Current price is: KSh 95,000.00.
300 L Pressurized Stainless Steel Solar Water Heater
Original price was: KSh 170,000.00.KSh 169,000.00Current price is: KSh 169,000.00.
300L Flat Plate Pressurized Solar Water Heater
Original price was: KSh 163,000.00.KSh 161,000.00Current price is: KSh 161,000.00.
300L Flat Plate Pressurized Solar Water Heater
Original price was: KSh 168,000.00.KSh 166,000.00Current price is: KSh 166,000.00.
300L Heat Pipe Pressurized Solar Water Heater
Original price was: KSh 157,000.00.KSh 155,000.00Current price is: KSh 155,000.00.
300L Non-Pressurized Vacuum Tube Solar Water Heater
Original price was: KSh 97,995.00.KSh 95,995.00Current price is: KSh 95,995.00.
300L Solar Water Heater – Non-Pressurized Stainless Steel Tank
Original price was: KSh 101,000.00.KSh 100,000.00Current price is: KSh 100,000.00.
350 Liters Solar Water Heater – Reliable Non-Pressurized System
Original price was: KSh 115,000.00.KSh 114,000.00Current price is: KSh 114,000.00.
350L Heat Pipe Pressurized Solar Water Heater
Original price was: KSh 175,000.00.KSh 173,000.00Current price is: KSh 173,000.00.
350L Non-Pressurized Vacuum Tube Solar Water Heater
Original price was: KSh 110,000.00.KSh 109,000.00Current price is: KSh 109,000.00.
350L Pressurized Stainless Solar Water Heater
Original price was: KSh 190,000.00.KSh 189,000.00Current price is: KSh 189,000.00.Why Choose Moffam Electricals?
- Wide range of solar water heaters (flat plate, evacuated tube, pressurized & non-pressurized)
- Professional installation and maintenance
- Affordable packages with warranty
- Trusted by families and businesses across Kenya
With Moffam Electricals, you don’t just buy a product—you get expert advice and long-term support.
FAQs – Choosing the Right Solar Water Heater Size
Q1: How do I know what size solar water heater I need?
A: Calculate your family’s hot water needs. For example, a family of four usually needs a 150–200 litre system.
Q2: What happens if I choose a smaller system?
A: The water may run out quickly, forcing you to rely on expensive electricity backup.
Q3: Is it okay to buy a bigger solar water heater than I need?
A: Yes, but oversizing increases upfront costs. At Moffam Electricals, we help you balance cost and efficiency.
Q4: Do solar water heaters work in all parts of Kenya?
A: Yes. Even in cooler regions, larger or evacuated tube systems provide reliable hot water.
Q5: How much does a solar water heater cost in Kenya?
A: Prices range from KSh 45,000 to 250,000+, depending on size, type, and brand.
Conclusion
Choosing the right solar water heater size ensures your family always has enough hot water without overspending on energy or equipment. At Moffam Electricals, we assess your household size, usage, and budget to recommend the best system for you.
Contact us today for a free consultation and let Moffam Electricals help you enjoy affordable, reliable solar hot water.
Add comment