Eimex Solar | Solar Water Heaters

Solar Water Heaters

Eimex Solar is Pakistan’s largest Solar Water Heater importer, stockiest and service provider with thousands of installations throughout Pakistan.

What is a Solar Water Heater?

Solar water heaters (SWH) convert sunlight into heat for water using a solar thermal collector. Available in various configurations to suit different climates, they are used in both residential and industrial settings. A sun-facing collector heats a fluid that then warms a storage tank. Eimex solar water heater uses advanced technology to efficiently absorb and transfer solar heat, with insulation that maintains temperature overnight. Solar water heaters are widely used globally, including in countries like China and Turkey.

Solar Water Heaters connected in series

Eimex Solar Electric Hybrid Water Heater

Eimex Solar digitally controlled solar water heater is the most efficient water heater available in the market today. Utilizing solar (primary) and electric power (as back up) to heat your water. Water is heated throughout the year through the sun and the system automatically shifts to electric power in case of cloudy and/or low sun radiation days. Eimex Solar water heater tank is insulated by a thick 60mm layer of polyurethane which helps it to hold temperature over night with minimum temperature loss. Our Smart Digital controller has two major functions that improve the system’s efficiency;

1) It governs the electric heating element and manages the temperature within the tank on its own.

2) It manages water inlet and fills cold water intelligently so that the overall temperature in the water tank does not drop.

Solar Water Heaters Sizes

150 Litres

• 150 Liter/40 Gallon tank with 60mm Insulation
• 15 vacuum tubes
• Suitable for 2 – 3 people
• 1,5 kW back-up electric heating rod
• Wi-Fi enabled digital controller (controls Water filling and electric heating)
• magnesium anode for maximum corrosion protection

200 Litres

• 200 Liter/ 50 Gallon tank with 60mm Insulation
• 20 vacuum tubes
• Suitable for 3 – 4 people
• 1,5 kW back-up electric heating Rod
• Wi-Fi enables digital controller (controls Water filling and electric heating)
• magnesium anode for maximum corrosion protection

300 Litres

• 300 Liter/80 Gallon Tank with 60mm Insulation
• 30 vacuum tubes
• Suitable for 5 – 6 people
• 1,5 kW back-up electric heating Rod
• Wi-Fi enables digital controller (controls Water filling and electric heating)
• magnesium anode for maximum corrosion protection

How Does A Solar Geyser Work?

Comparing Different
Types of Water Heaters

Eimex Solar Electric Hybrid Water Heater vs Stand Alone Electric water Heaters

Stand alone electric heaters are readily available in the market today, however, as they rely 100% on electric power and with sky rocketing electricity prices, they are extremely expensive to operate. Another major drawback of conventional electric water heaters is that they loose heat rapidly as they tanks are mostly not efficiently insulated. Compare that to the features available with the Eimex Solar water heater and you will not regret your decision of installing Eimex Solar Electric Hybrid Water Heater.

Eimex Solar Electric Hybrid Water Heater vs Natural Gas water Heaters or Geysers

Natural Gas Fired Water geysers or heaters have been the most widely used water geysers in the country since the past many decades. However natural gas is no longer a widely available resource and natural gas reservoirs of the country are fast depleting, which is why natural gas is seldom available in the winters and on top of that the government of Pakistan has banned new natural gas connections for domestic use. Apart from this, the gas geysers available in the market today are highly in-efficient as they run on the same 50-year-old technology with no provisions of tank insulation to retain water temperature and they heat water through a gas burner with burns gas on a non-stop basis which is not free.

WHAT IS A SOLAR GEYSER MADE OF?

SOLAR GEYSER TANK

Solar Water Heater tank is made of an inner tank made of SS304 food Grade 0.4mm thick stainless steel sheet and outer tank made of 0.4mm SS201 stainless steel sheet with 60MM of German Polyurethane Insulation In between that is capable of keeping the water hot over night.

Capacity: 150, 200 & 300 Liter

Material of Inner Tank:
≥ 0.4mm Thick food-grade Stainless Steel with anti- scaling Provision

Inlet and Outlet Holes: G-3/4 inch & 1/2″

Fabricated in our ISO certified manufacturing facility in China

Comes with a 2 year leakage warranty. 

EIMEX VACCUM TUBE

A Vacuum tube is the actual part the solar water heater / solar geyser responsible for heating the water. It absorbs solar energy and converts it to usable heat. A vacuum between the two glass layers insulates against heat loss. On the inner layer of the solar vacuum / evacuated tube a three layer coating is used to ensure the most effective heat absorption. This includes a al-n/ai (aluminium nitrate) layer a second aluminium layer as well as a third copper layer. The added layers conduct heat better and also stabilise the coating allowing for a much longer lifespan of the vacuum tubes, A solar vacuum tube can easily last for 20 plus years.

Specifications of Eimex’s Solar Evacuated / Vacuum tubes

Length: 1800mm± 2mm Outer tube diameter: 58mm±2mm
Inner tube diameter: 47±2mm Glass Thickness:1.6mm± 2mmMaterial: Borosilicate Glass 3.3 Efficiency: 93% to 95%. 

SOLAR GEYSER – DIGITAL CONTROLLER

The controller as the name suggests controls the solar water heater / solar geyser. It’s basic function is to control cold water filling and govern the back up electric heating aspect besides displaying the water temperature and water level on its LED screen.

On its interface you can easily set the desired temperature to manage electric heating, set the desired level & temperature in the tank before it can all cold water to fill. The controller operates in three modes;

MANUAL – Water filling & electric heating can be managed manually by the press of buttons on the screen

TIMING – Three different time settings can be made to fill water and turn on electric heating if the temperature in the system is below the desired level

INTELLIGENT – Intelligently manages the solar water heater on its own.

Other Controller functions

Temperature controlled water fill. Tube burst protection Constant temperature heating. Power failure memory. Overflow protection. Water level /quality adaptation. overload protection.

BACK UP HEATING ELEMENT

Our units are hybrid and they come with a fitted 1500/2000 watt electric element which runs as per your requirement and is easily operated through the controller.

This 1500/2000 watt Nickel Alloy element raises the temperature at the speed of 10 °C per hour by only consuming 1.5 units of electricity.

SUPPOR FRAME (BRACKET)

Material: Hot-dip galvanized steel/powder coated paint or all Stainless Steel Configuration

Thickness: Minimum 1.2 mm

Frame Angle: 45 degrees

Average Life: At least 12 years.

MAGNESIUM ROD

Of the many parts and components used in modern water heaters, the anode rod might just be one of the most important. Without this piece, the internals of water heaters would wear down a lot more quickly.

Water heaters are susceptible to rust and corrosion because of the materials used to construct them and how these materials react to water. Water is naturally acidic, and the steel used to make the tanks undergoes the rusting and corroding process when it comes in contact with oxygen or moisture. The heating aspect may make your water nice and hot, but this heat speeds up the corrosion process.

The anode rod is a piece designed to slow down corrosion and rusting in water heaters. The rod is made of magnesium, which wears out faster than steel. When water corrodes the magnesium, the anode rod releases electrons into the tank which form a protective barrier around the steel of the tank.

The service life of an anode rod can vary depending on the temperature of the water in the tank, how much water is used, the quality of the water heater, and the composition (hardness vs. softness) of the water. Keeping up with your regular water heater maintenance will help extend the life of the rod as well as the whole system.

Want it installed? Let’s get to work.