300 Litre Solar Water Heater — Supply & Installation in Dubai

📦 Supply included
🏠 Roof installation
🛠️ Repair all brands
📋 Maintain annually
Pick Your Solar Service Package
Three ways to get a 300-litre solar system on your roof. Whatever solar water heater 300 ltr price you see elsewhere, compare it against what’s actually included — every package below includes a roof survey and full system testing before handover.
Full Supply + Installation
- 300L solar tank + collectors supplied
- Roof survey — orientation, shading, structure
- All mounting frames, ballast & fixings
- Pipework from roof to all bathrooms
- Backup element & controller wired safely
- Full heat-cycle & leak testing
- Handover walkthrough — winter/summer settings
Installation Only
- Compatibility check of your system
- Same professional rooftop installation
- Mounting, pipework & wiring
- Pressure & electrical safety testing
- Controller setup & calibration
- Handover walkthrough included
Repair & Maintenance
- Many solar brands repaired — ask about yours
- Collector leaks, pump & controller repairs
- Honest diagnosis — repair vs replace advice
- Annual maintenance — collector cleaning + checks
- Backup element & anode servicing
- Scheduling across Dubai
⚡ Quick Answer
If you’re researching the solar water heater 300 ltr price, start with the right size: a 300-litre solar water heater suits large Dubai villas with 5–7 people — and staff accommodation, salons and small commercial sites with high daytime hot-water demand. Dubai’s intense sun makes rooftop solar the most economical way to heat large volumes of water for most of the year. Dubai Profixer supplies the 300L tank and collectors, mounts everything on your roof, runs insulated pipework to your bathrooms, and wires the backup element for cloudy stretches. Exact supply + installation quote on WhatsApp 052 460 1612 — we also install systems you’ve bought yourself, and repair solar systems of all brands.
By Dubai Profixer Technical Team · Updated October 2026 · Open 7 AM – 12 midnight daily
How We Install a 300L Solar System on Your Roof
A 300-litre solar setup is a small plumbing plant, not a bathroom appliance. Roof, weight, wind, pipework and electrics all get engineered — in that order.
Roof Survey
Orientation, shading, structure & pipe routes planned first.
Secure Mounting
Frames ballasted or anchored for Dubai wind loads.
Collector Fixing
Collectors set at the right tilt, sealed against leaks.
Pipework & Wiring
Insulated runs to bathrooms; backup element wired safely.
Test & Handover
Heat-cycle tested, controller set, walkthrough done.
We’re Solar Technicians, Not a Shop
Anyone can deliver boxes to your gate. We engineer the whole rooftop system — and stay responsible for it afterwards.
- We supply everything — 300L tank, collectors, frames, pipes, valves, controllers. You don’t chase suppliers across Dubai.
- Roof-first engineering — orientation, shading analysis and structural mounting before a single pipe is cut. A badly placed collector wastes your money for 15 years.
- One team, full responsibility — supply, rooftop install, bathroom pipework, electrics and aftercare from the same technicians.
- Many brands repaired — collector leaks, dead pumps, faulty controllers. Ask about your system on WhatsApp.
- Dubai-specific know-how — dust, summer overheat protection, hard water, villa roof types. We deal with them daily.

This Is What Your Roof Looks Like After We Finish
A 300-litre solar installation on a Dubai villa roof: the insulated 300L tank mounted on a raised steel frame, vacuum-tube or flat-plate collectors angled toward the southern sun, and insulated hot-water runs dropping through a weather-sealed roof penetration down to the bathrooms. This is where the magic happens — every sunny day, the collectors harvest heat for free, and the insulated tank keeps it ready. The backup electric element (1.2–2 kW depending on model variant) only steps in during long cloudy stretches or heavy night-time demand.
Everything exposed to Dubai’s sun and dust is UV-rated and sealed. The roof penetration is flashed and waterproofed — a leaking roof entry is the #1 mistake of cheap solar installs, and we refuse to make it. Ask us anything about your roof setup on WhatsApp.
Not sure if 300L is right?
Tell us your household size — we’ll recommend the right system.
What’s Included in Every 300L Solar Installation
Your quote breaks this down line by line — before anyone climbs your roof.
300L insulated tank
High-density insulated storage tank with sacrificial anode. Warranty terms follow the manufacturer’s policy for your exact model — confirm on WhatsApp before we order.
Solar collectors
Flat-plate or evacuated-tube collectors matched to your roof space and budget — we explain the honest trade-offs so you choose knowingly.
Mounting & structural work
Hot-dip galvanized frames, wind-rated fixings or ballast, sealed roof penetrations. A 300L loaded system is heavy — zero improvisation.
Full pipework
Insulated hot-water runs from roof to every bathroom, brass valves, pressure relief, expansion handling. No heat lost in the walls.
Controller & backup element
Differential temperature controller, pump station on pumped systems, backup electric element wired on a dedicated circuit with proper protection.
Commissioning & walkthrough
Full heat-cycle and leak testing, controller programmed for Dubai seasons, and a plain-language walkthrough of what to watch and when to call us.
Is 300 Litres Right for You?
A 300-litre solar system serves 5–7 people across 3–5 bathrooms — a large family villa, a villa with live-in staff, or a property where hot water runs all day. In Dubai’s sun, a well-placed 300L system reheats through the day, so morning showers and evening demand both get covered without the backup element doing much work.
Choose 300L for large villas in solar water heater territory — Arabian Ranches, Emirates Hills, Palm Jumeirah, Jumeirah, Mirdif and similar. For smaller households, our 150-litre solar system costs less and heats faster. Running a business with hot-water demand — salon, clinic, gym, restaurant, staff accommodation? The 300L is often the starting point, and we can design multi-tank arrays. See our solar water heater price guide for how system size affects cost.
Flat plate or evacuated tube?
Flat-plate collectors are robust, simpler to service and cost less — the workhorse choice for most Dubai villas. Evacuated-tube collectors harvest more heat per square metre and perform better on hazy days, but cost more and have more parts to maintain. For a 300L system we recommend based on your roof space, shading and budget — ask us honestly, we install both.
What about winter and cloudy days?
Dubai gets genuine winter mornings — December and January can dip cool enough that solar alone won’t fully cover a big household’s evening demand. That’s what the backup element is for: it tops up the tank automatically when the controller senses the collectors can’t keep up. You never think about it — hot water just works, with the sun doing the heavy lifting most of the year and the element covering the gaps.
Why a 300L Solar System Makes Sense in Dubai
We recommend solar for big households because we service what we install — and when you set the solar water heater 300 ltr price against a decade of near-free hot water, the maths works in this climate.
Dubai Sun Does the Work
Among the world’s best solar resources. For most of the year, your water heats itself — the element stays off.
300L Matches Big Demand
Five to seven people, multiple bathrooms, staff quarters — one tank covers the whole property without juggling showers.
Insulated Storage
High-density insulation keeps daytime heat for evening use. Hot water at night without reheating.
Smart Backup Element
Controller-driven backup (1.2–2 kW depending on model variant) only fires when solar can’t keep up. Automatic, invisible.
Serviceable Design
Standard collectors, pumps and controllers with parts available in the UAE — we can maintain it for years.
Built for Villa Roofs
Wind-rated frames, sealed penetrations, UV-resistant pipework — engineered for Dubai conditions, not imported blindly.


Typical 300L Solar Specifications
Figures vary by exact system — tank, collector type and controller model. Confirm your configuration on WhatsApp.
| Storage capacity | 300 litres |
|---|---|
| Collector type | Flat-plate or evacuated tube (site-matched) |
| Collector area | Typically 4–6 m² for 300L |
| Backup element | 1.2–2 kW (model variant) |
| Voltage | 220–240 V, 50/60 Hz |
| Tank insulation | High-density polyurethane |
| Tank protection | Enamel coating + magnesium anode |
| System type | Thermosiphon or pumped (split), site-dependent |
| Max working pressure | Per manufacturer specification |
| Mounting | Galvanized frame, wind-rated fixings |
| Controller | Differential temperature controller with backup logic |
| Warranty | Per manufacturer’s policy for your exact model |
300L Solar Problems We Fix
Don’t replace what we can repair. Honest diagnosis first — always.
Collector Leaks
Cracked tubes or failed seals waste your heat. We replace damaged tubes and reseal — often without changing the collector.
Lukewarm Water
Usually dust-caked collectors, a dead pump, or a failed sensor. Cleaning + diagnosis restores full performance.
Backup Always On
A controller stuck in backup mode runs your DEWA bill up. We recalibrate or replace the controller logic.
Pump Noise or Failure
Seized circulation pumps are common after dusty summers. We service or replace with the correct specification.
Rusty Water
Consumed anode letting the 300L tank corrode. Replace the rod early — a tank this size is worth saving.
Overheating in Summer
Stagnation damage from extreme heat. We fit proper overheat protection and check expansion handling.
Annual Maintenance — Dubai Dust Is the Enemy
A 300L solar system is a bigger investment than an electric heater — and Dubai’s dust settles on collectors within weeks, silently cutting heat harvest. Our yearly visit through the solar maintenance service: collector cleaning (the single biggest efficiency restore), anode inspection, pump and controller checks, valve and expansion testing, and a roof-mount integrity check after shamal season.
Skip maintenance and you won’t notice the decline — the backup element just quietly covers the gap on your DEWA bill. One visit a year keeps the sun doing the work instead of the grid.
Dubai Realities Nobody Else Mentions
We install solar across Dubai’s villa communities every month. Here’s what actually matters here.
Dust kills efficiency silently
A dust film on collectors can slash heat gain dramatically — and the backup element masks it on your bill. Quarterly rinsing in dusty months is the cheapest maintenance there is.
Summer stagnation is real
When nobody’s home in August, a 300L system can overheat and stagnate. Proper expansion vessels and overheat protection aren’t optional — we fit them as standard.
Roof penetrations must be sealed
Every pipe through your roof is a future leak if flashed badly. We weather-seal every penetration — ask any cheap installer what they do and watch them hesitate.
Villa community rules vary
Some communities restrict visible rooftop equipment. We position collectors discreetly and advise on community approvals before installation day.
300L Solar vs The Alternatives
vs the 150L solar system: The 150L costs less and suits 2–4 people. The 300L is for 5–7 people or high-demand properties. Undersize and the backup element runs constantly — the “solar saving” evaporates. We’d rather talk you down a size than sell you wrong.
vs electric storage heaters: Electric is cheaper to install and fits apartments, but a 300L electric tank reheats slowly and runs the element hard. For big villas with roof space, solar’s running cost wins over the years — we install both, so no sales agenda.
vs instant heaters: Instant never runs out but needs heavy electrical upgrades per bathroom — impractical for a 5-bathroom villa. One 300L solar system serves the whole house from one roof.
Straight pros & cons
✅ Lowest running cost for big households · Dubai sun is free fuel · one system serves the whole villa · quiet, automatic operation.
⚠️ Higher upfront cost than electric · needs roof space and good orientation · annual collector cleaning essential · backup element still needed in deep winter.
Exact Price? One Message Away
The solar water heater 300 ltr price moves with collector type (flat plate vs evacuated tube), your roof’s complexity, pipework distances to bathrooms, and whether you need a pumped split system or a simple thermosiphon. That’s why we don’t print a number that goes stale — message us and get today’s exact quote, broken down line by line: tank, collectors, mounting, pipework, electrics and labor.
What we can tell you upfront: the system pays for itself through years of near-free daytime heating — and our solar price guide explains every cost factor in plain language.
300L Solar for Businesses
Salons, clinics, gyms, restaurants, labor and staff accommodation — anywhere hot water runs all day, a 300L solar system (or a multi-tank array) cuts the electric heating load dramatically. The solar water heater 300 ltr price for commercial setups is quoted per site after we survey your roof and hot-water demand.
We design commercial arrays, schedule installation around your operations, and offer maintenance contracts that keep every tank and collector performing. Talk to us about your site — we’ll survey and propose honestly, including when solar isn’t the right answer.
We Install Solar Across All of Dubai
Villas are our home turf — our rooftop teams work across Arabian Ranches, Emirates Hills, Palm Jumeirah, Jumeirah, Umm Suqeim, Al Barsha, Mirdif, Al Warqa, Dubai Hills, Damac Hills, Mudon, Remraam, Dubailand, Al Furjan, JVC villas, Sports City, Motor City — and commercial sites and staff accommodation anywhere in Dubai, from Jebel Ali to Deira.
Apartments rarely suit solar (no private roof), but if your building allows it, we’ll survey honestly. WhatsApp your location and a roof photo for an accurate quote.
Repair It or Replace It?
We make money both ways, so here’s the truth: repair when the fault is in the collectors, pump, controller or sensors — most solar faults are component-level and very fixable. Replace when the 300L tank body itself leaks or corrodes through, or the whole system is 12+ years old with failing parts everywhere.
Cracked vacuum tubes? Replace the tubes, keep the system. Dead pump on a 4-year-old setup? Repair it. Tank leaking at the seam after a decade of hard water? That’s a new system — and we’ll tell you straight. Send us photos on WhatsApp — we’ll tell you which one it is before anyone climbs your roof.
Book in 3 Messages
1. WhatsApp us — household size, villa location, and a roof photo if you have one. That tells us more than a phone call.
2. Get today’s exact quote — tank, collectors, mounting, pipework, electrics, labor — broken down line by line. The number we quote is the number you pay.
3. We survey, install and test — roof survey first, then installation day, full testing and a walkthrough before we leave. Hot water from the sun, same week.
No surprise add-ons mid-installation — the quoted price is the price. If the roof survey reveals something unexpected, we show you, explain the options, and wait for your go-ahead.
300L Solar — FAQs
No sales talk. If your question isn’t here, WhatsApp us.
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Dubai Profixer — Water Heater Specialists
Solar · Supply · Installation · Repair · Maintenance — villas, commercial & apartments, all Dubai.
📞 052 460 1612 · 🕐 7:00 AM – 12:00 Midnight, Daily
Astral Spaces, Sheikh Zayed Road, Dubai, UAE
Hot Water From the Sun.
One message: today’s solar water heater 300 ltr price, roof survey, honest advice. No obligation, no pushy sales.
