Solar water heating is one of the few applications where the return is immediate and obvious — the fuel is free, the equipment has almost no moving parts, and there is nothing to break down on a rainy afternoon.
Most Nigerian systems use evacuated tube collectors, which hold heat better than flat plate and cope far better with the overcast, high-humidity conditions of the rainy season. A typical family installation is a cold-water pre-heat tank that supplements — and in a good climate can replace most of — a conventional geyser load.
Two things decide whether it works for you: roof area and orientation, and how much hot water you actually use. A 4–6 tube system suits a family of three to four; larger households and higher demand need more collectors or a supplementary electric element for cloudy spells.
Because water heating is usually additional to your household lighting and appliance load, it is often best treated as its own array rather than added to an existing system. Our peak sun hours and panel sizing guide has the regional data you need to size it properly for your city.
Enquire about solar water heater availability and installation, and we will size the collector array for your roof and household.