Solar Hot Water Kits

Solar manufacturers are now offering pre-packaged solar hot water kits at very competitive prices. Their typical components are a set of solar panels, a charge controller, a battery (in the case of off-grid systems), and output cable and wiring.

For other types of solar kits, see: Solar PV Kits

Choosing the right solar hot water kit

Solar kits differ in their design. If you live in a colder climate, drainback design kits are very good solutions. For moderate and hot climates bet on thermosyphon design kits. See: Different types of solar designs

Type of Panels for solar Hot water Kits

Pay attention to the type of solar panels. Flat solar panels are good for moderate and warmer climates, but kits with tube solar panels are a better option for colder climates.

Size

Solar hot water kits vary in their storage tank and solar panel size. Kits with a capacity of 50 to 100 gallons of hot water/day, 1-2 collectors and tanks of 50-120 gallons are very common, and may respond to the hot water needs of 2-5 people households.

Note: Estimations of 20 gallons/75 litters of hot water per people/day are common.

Advantages and disadvantages of solar water kits

Solar kits are standardized and cheap solutions, mass-distributed and, in many cases, with well-tested and reliable components.

But this isn't a rule, and the customization of solar hot water applications is often the most advantageous option.

Installation

Solar hot water kits may not be so easy to install as manufacturers and dealers say in their sites and publicity. Unless for very simple solutions and unless you are a skilled DIY, with enough time and skills to follow lengthy instructions, it may be better a professional installation (or a customized solution). Certified installers and good professionals can – in many cases - save you time and ensure the best installation, design and solutions.