A storage tank is required to ensure that hot water is readily available. These storage tanks come in different colours, and black is one of them.
Getting into Hot Water: A Practical Guide to Hot-Water Heating
Comparison of Bolted Square and Round Panel Tanks: Making the Right Choice
Are Your Tanks Ready for Winter? - Kasco Marine
The Truth about Black Storage Tanks and Water Temperature
Cooling potential for hot climates by utilizing thermal management
PE Water Tanks Your Best Option to store Water in the Extreme
The Truth about Black Storage Tanks and Water Temperature
Hot Water Storage Tank - an overview
eCFR :: Appendix B to Subpart G of Part 431, Title 10 -- Uniform
The Truth about Black Storage Tanks and Water Temperature
Set Your Water Heater to This Exact Temperature to Save Money This
Hot Water Temperature : Avoid Setting Your Water Too Hot
Water Preparation and Storage Tanks - SK Škrlj