When sourcing Ariston water heaters, the price is heavily influenced by heating technology (Electric, Gas, or Heat Pump) and tank capacity (ranging from 10L to 100L+ for residential use). You must verify the tank lining material, such as Titanium Enamel coating, which ensures corrosion resistance and longevity. Additionally, check the IPX protection rating (e.g., IPX4) for water resistance and the heating element material (copper vs. incoloy) to ensure it meets the durability requirements of your specific market.