Under Sink Instant Water Heater Installation
Compact Hot Water, On Demand
Hot water exactly where you need it — without waiting, wasting, or overloading your geyser. That’s the benefit of an under-sink instant water heater.
At Juspropa Electrical & Plumbing, we specialize in installing these compact systems for kitchens, guest bathrooms, offices, and hospitality facilities across Gauteng. Our certified electricians and plumbers ensure safe wiring, proper plumbing connections, and SANS-compliant installation.
Why Choose an Under-Sink Instant Water Heater?
Unlike a traditional geyser that heats water for the entire property, an under-sink unit is installed directly where hot water is needed.
✔ Immediate hot water – no waiting for water to travel through pipes
✔ Space-saving design – fits neatly under a kitchen or bathroom sink
✔ Energy-efficient – only heats water you actually use
✔ Lower water waste – no running taps until hot water arrives
✔ Perfect for small spaces – flats, offices, guest bathrooms, salons, hotels
Common Use Cases
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Kitchen sinks – quick hot water for washing dishes and cooking
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Guest bathrooms – independent hot water without overloading your geyser
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Offices & clinics – hygienic hot water for staff and clients
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Hospitality industry – hotels and lodges cut running costs with localized hot water solutions
At Juspropa Electrical & Plumbing, we specialize in installing these compact systems for kitchens, guest bathrooms, offices, and hospitality facilities across Gauteng. Our certified electricians and plumbers ensure safe wiring, proper plumbing connections, and SANS-compliant installation.
🔍 Comparison: Under Sink vs Traditional Electric vs Solar Geysers
| Feature | Under Sink Instant Heater | Traditional Electric Geyser | Solar Geyser |
|---|---|---|---|
| Heating Method | Heats small volumes instantly at the sink | Large tank heated by electricity | Solar panels + backup electric element |
| Water Availability | On-demand, limited to one point | Whole household | Whole household |
| Energy Efficiency | High (no standby loss) | Moderate (standby heat loss 24/7) | Very High (up to 50% energy savings) |
| Monthly Running Cost | Low (localised heating only) | High (30–40% of the electricity bill) | Very Low (sunlight + minimal backup) |
| Space Requirement | Compact under-sink | Large tank, often in the ceiling or outside | Solar collectors + tank space |
| Best Use Case | Kitchens, guest bathrooms, offices | Family homes needing bulk hot water | Eco-friendly homes, hotels, and lodges |
| Installation Time | 2–3 hours | 4–6 hours | 1–2 days |
| Maintenance | Low | Medium | Low (annual service recommended) |
| Lifespan | 3–5 years | 5–8 years | 10–15 years |
👉 This comparison shows that under-sink heaters are unbeatable for targeted convenience and energy savings, while solar geysers are ideal for long-term household or commercial efficiency. Many of our clients combine the two for maximum savings and reliability.
Brands & Technology We Install
We work with proven, reliable brands in South Africa:
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Kwikot – trusted, durable mini geysers
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Ariston – compact, stylish units with energy-saving modes
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Bosch – advanced heating elements for efficiency
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Franklin Electric – robust options for commercial setups
Each brand has different strengths: Kwikot and Bosch are excellent for long-lasting reliability, while Ariston offers modern digital control features.
Our Installation Process
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Assessment – Check your plumbing, electrical capacity, and space under the sink
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Recommendation – Suggest the most efficient heater for your usage needs
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Installation – Secure mounting, safe wiring, and leak-proof plumbing
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Testing – Verify water temperature, flow, and safety cut-offs
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Handover – Show you how to use, adjust, and maintain your new unit
📩 Book Your Installation Today
Energy & Cost Savings
Running a full electric geyser 24/7 can account for 30–40% of your electricity bill. By switching to an under-sink heater:
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You only heat small volumes of water where needed
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Standby heat loss is almost eliminated
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Savings can reach up to 25% on household hot water costs
Combine this with a geyser timer or solar system, and the savings multiply. (See our Digital Geyser Timer Installation page.)
FAQs Under Sink Instant Water Heaters
❓ Do they replace my main geyser?
No. They’re designed as supplementary systems for specific sinks or basins.
❓ How much space do they need?
Most units are small enough to fit in standard cupboards under sinks.
❓ What electrical supply do they require?
Typically a dedicated power circuit. Our electricians ensure full compliance.
❓ Can they run multiple taps?
Smaller units are best for one sink, but we can design multi-point setups if required.
❓ How long do they last?
With proper installation and maintenance, 7–10 years is common.
Areas We Serve
We install under-sink instant water heaters across Gauteng:
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Johannesburg (Sandton, Rosebank, Randburg, CBD)
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Fourways & Midrand
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Edenvale & Bedfordview
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Pretoria & Centurion
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Guesthouses, hotels, and commercial kitchens
🚀 Ready for Instant Hot Water?
✔ Save space and energy
✔ Get hot water on demand
✔ Enjoy certified, neat, professional installation
Juspropa Electrical & Plumbing — Compact Hot Water, Expertly Delivered.
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