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Install & maintenanceHow much roof space does a solar water heater need?
The collector number is easy, but the roof that actually works needs more: clearance front and back, an angle, and a service path. This article tells you what to measure and how.
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السعر والتوفيرSolar or gas water heater? A comparison from a company that installs both
Most comparisons online are written by someone selling one of the two. We sell both, so we'll tell you the truth by situation, not by product.
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Worth itDoes a solar heater work at night? Does the water stay hot until morning?
The real question isn't "does it work at night?" — it's "how long does the water heated by day last?". The answer depends on three things in your system, not on the sun.
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Choice & capacityImported or local solar heater? The difference that actually matters in Egypt
A common question with a common answer that's wrong from both sides. This article tells you what to judge instead of country of origin — and when origin becomes real information.
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السعر والتوفيرSolar heater installation cost: what actually drives it
When you ask for a solar heater price you get a number for the unit — then discover installation has its own calculation. This article breaks that calculation down item by item.
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Choice & capacitySolar for hotels and facilities: designing on the peak hour
Project systems are not sold off the shelf — they are designed. Here is the engineering logic that makes the difference.
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Choice & capacityCentral solar for an apartment building: one system or one per flat?
The most common question in residential buildings. Here is how the two compare on space, cost, billing and maintenance.
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Choice & capacityRoof can't take a tank? The forced-circulation system
Not every roof allows a tank above it. Here is the system that solves those cases — and when it isn't justified.
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Install & maintenanceSolar heaters and hard water: scale and protecting the tank
Most heater faults have nothing to do with the sun — they have to do with the water. Here is how scale works and how to protect against it.
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Quality & heatingHow is the cost of heating a swimming pool decided?
Two pools of the same size can differ a lot. Here is what actually moves the cost — and the cheapest way to lower it.
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Quality & heatingPool heating: heat pump, titanium exchanger, or boiler?
The choice depends on your season and the energy source available, not on which is newest. Here is the honest comparison.
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Quality & heatingCentral heating or air conditioning on heat mode?
"I have AC units — why add heating?" A fair question, and the answer is not "AC is bad". Here is the honest comparison.
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Quality & heatingHow is the cost of central heating for a villa decided?
Two offers for the same villa can differ a lot — and the reason is not the boiler. Here is what actually moves the cost.
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Quality & heatingCentral heating in an already-finished flat: is it possible?
"I missed the finishing stage" is not the end of it. Here is what genuinely works in an existing property, and what changes if you are still finishing.
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Quality & heatingUnderfloor heating or radiators? The difference you live with
The biggest decision in central heating. Here is how the two compare on response, control, flooring and service — and when to mix them.
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Choice & capacityPressurised or non-pressurised solar heater?
The difference you feel every day. Here is how each type works and how to tell which one fits your home without guessing.
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Quality & heatingPreventive boiler maintenance: what gets checked, and how often?
Most boiler faults are predictable and preventable. Here is exactly what gets checked, and why neglecting it voids the warranty.
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Quality & heatingGas boiler faults and fixes: what to do before calling a technician
Not every boiler shutdown is a major fault. Here are the common symptoms and their causes, and what separates checking from meddling.
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A heat pump for home water heating: does it work in Egypt, and who for?
A system that runs day and night with no roof and no natural gas. Here is who it genuinely suits — and when it is the wrong call.
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How is the price of a gas boiler in Egypt decided?
A boiler is not an off-the-shelf product with a tag on it. Here are the five factors that move the cost, and how to read any offer properly.
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Choice & capacityEvacuated tubes or flat plates? The real difference in Egypt
The most common technical comparison in solar heating. Here is the real difference in design, performance and maintenance — and why Egypt's climate tips the balance.
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Trust & brandSolar water heater warranty: what does it actually cover?
Most people ask "how many years?" — which alone isn't enough. What matters more: what it covers, who is responsible, and what voids it.
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Is a gas boiler safe at home? The straight answer
Concern about a gas boiler is reasonable, and the answer is not "don't worry". This sets out what actually creates risk, and how to verify your installation.
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Gas boiler or instant heater? The real difference before you buy
A common question with a simpler answer than expected: an instant heater serves a limited number of outlets, a boiler serves a whole home and runs heating.
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Boiler capacity: by bathroom count or by floor area?
The most common mistake in choosing a boiler is sizing it by floor area. The real calculation starts from a different question: how much runs at once?
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300-litre solar heater — who is it for?
300 L comes into play when household size grows or bathrooms run together. Here's when it's the right choice, which models offer it, and why Apollon gives you 330 rather than 300.
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200-litre solar heater — how many people does it serve?
Per the Nobel catalogue, a 200-litre heater serves 4-5 people — but that figure is indicative. Here's when it's genuinely the right choice and when you need more.
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The best solar water heater in Egypt 2026?
It's the most-asked question, and the short answer is: the best one is whichever specification matches your home. Here are the criteria and the real differences between models.
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Quality & heatingHow does a central heating system work?
Instead of scattered heating units, one system warms your whole home from a single source. How it works and who it's for.
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Quality & heatingHow to tell a good solar heater from a bad one
Not all solar heaters are equal, even if they look similar. A simple checklist to verify quality before you pay.
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Trust & brandWhy Nobel specifically?
"Why Nobel specifically?" is one of the most common questions we get. A straight answer about what actually sets it apart.
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Trust & brandHow to choose a trustworthy solar heater installer
A great heater installed wrong, or a company that disappears after the sale, means wasted money. A practical guide to choosing a trustworthy installer.
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Install & maintenanceBest place to install a solar heater
Panel placement decides performance more than anything else. Here's what an ideal spot looks like and how we confirm it during the inspection.
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Install & maintenanceSolar heater faults and how to fix them
Most solar heater faults are simple with well-known causes. Here's what to check for each symptom — and when it's time to call a specialist.
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Install & maintenanceSolar heater install time and steps
Installing a solar heater follows six clear steps. Here's what happens at each one and what actually determines how long it takes.
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Install & maintenanceInstalling and maintaining a solar water heater
Correct installation and simple maintenance affect a heater's lifespan and performance more than the model itself. A practical guide to both.
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Choice & capacitySolar heater for a flat or a villa?
Flats and villas call for different choices — capacity, roof, and installation all differ. Here's the breakdown so you choose right for your case.
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Choice & capacityHow many litres does your home need?
"How many litres do I need?" is the most-asked question, and the answer depends on your home, not a general figure. Here's the principle — then get your starting capacity from the calculator.
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Choice & capacityHow to choose the right solar water heater
A practical guide to choosing a solar heater: the four things that decide the right choice, and how to find your home's capacity in under a minute.
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السعر والتوفيرSolar or electric water heater? By the numbers
An honest money comparison of solar vs electric — which is cheaper upfront, which saves long-term, and who each suits.
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السعر والتوفيرHow much does a solar heater save on electricity?
Real savings aren't a magic number — they depend on your home. Here's how to work yours out and when the heater pays for itself.
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السعر والتوفيرHow much does a solar water heater cost in Egypt?
Instead of a misleading number online — an honest look at what determines a solar heater's price, and how to get the exact cost for your home.
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Worth itSolar water heater drawbacks: the full truth
People who look up the drawbacks are serious buyers. We've gathered the real ones, honestly — with a fix for each — so you can decide with confidence.
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Worth itDoes a solar water heater work in winter?
The biggest worry before buying, answered honestly: how hot the water stays in winter, and exactly when the backup element switches on.
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Worth itIs a solar water heater worth it?
A straight answer: when a solar water heater is genuinely worth it, when electric fits better, and the real difference between them — no exaggeration.
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Where to start, based on your question
These articles are written from real installation and maintenance work, not copied from catalogues. Each one takes a single question we are actually asked and answers it honestly — including the drawbacks and the cases where a product is the wrong fit.
If you are still deciding whether to buy at all, start with the articles comparing systems and explaining when a solution is not worth it. If you have decided and want to know how to choose well, the articles on capacity, placement and picking a company are your section. And if you already have a running system and are looking at maintenance or a fault, there are articles dedicated to recurring faults and their fixes.
Any article quoting a technical figure states where it comes from. Figures that change with your specific home — capacity and cost — are not written as a single number, because they are calculated from your inputs rather than from an average.
Questions about the content itself
Who writes these articles?
The Aurora team — people who survey, install and repair these systems in the Egyptian market. That is why the articles mention details you only learn on site: that roof orientation matters, and that simultaneous showering changes the capacity you need.
Are articles updated, or written once?
They are updated. Each article shows its date, and when something changes — a model is discontinued, a specification is revised, an installation practice improves — the article is edited rather than left behind. If you find two articles contradicting each other, tell us.
Why are there no specific prices in the articles?
Because price changes with capacity, system type and the nature of the installation itself — roof height, pipe runs, number of draw-off points, and whether an old system must be removed. A figure published without those misleads. The articles explain what drives the price so you can judge any quote you receive.
Are these articles adverts for your products?
The articles explain the field rather than praise a product. Some of them discuss the drawbacks of solar water heaters plainly, and the cases where another solution fits better. If the solution you need is not one we sell, that is what the article will say.
How do I get to a practical answer quickly?
If your question is about your specific case — capacity, system, whether it suits you — the Smart Advisor is faster than any article, because it asks about your home and calculates. Articles help more when you want the background before deciding.
Is this written for the Egyptian market or in general?
For the Egyptian market specifically. That difference matters: solar irradiation in Egypt is higher year-round than in most of Europe, so capacity calculations and winter performance differ from any foreign reference. Natural gas availability, the nature of rooftops in apartment blocks and compounds, and water quality all affect both the choice and the maintenance cycle — and the articles are written on that basis.
What should I read before winter in particular?
Two things: the article on solar heater performance in winter — so you know what to actually expect rather than what is promised — and the article on faults and their fixes, because most faults surface with the first cold spell when consumption jumps. And if your system has been running a while, preventive maintenance before winter is cheaper and faster than a repair in the middle of it.
Can I quote from these articles?
You may quote with attribution and a link to the page. If you need extended material or technical detail for a project or a study, get in touch — we share what we have.
Is your question about your own home? The Smart Advisor is faster than any article