Ariston water heaters
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The Ariston water heater range belongs to the Ariston Group, whose holding company has its business address in Milan. Its electric range runs from small 6 to 30 litre heaters to 50, 80 and 100 litre tanks; the 50 litre ARI model heats water by 45°C in 1 hour 30 minutes at 1.5 kW, according to Ariston.
In stock in Zanzibar
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Who makes Ariston water heaters
Ariston water heaters are made by the Ariston Group. The footer of ariston.com names Ariston Holding N.V., with its legal seat in Amsterdam and its business address in Milan, and lists country sites including Egypt, Ghana, Morocco, Nigeria and South Africa; there is no Tanzania page. The Ariston Group says the brand is distributed in more than 100 countries and covers electric, heat pump and solar water heating.
Ariston product lines
| Line | Type | Sizes and data |
|---|---|---|
| Andris R | small electric tank | 10 or 15 L; 2 or 3 kW |
| Andris Lux | small electric tank | 6, 10, 15 and 30 L |
| Andris Lux Eco | small electric tank, electronic control | 10, 15 and 30 L; anti-legionella and Eco Evo functions |
| Pro1 Eco | electric storage | 50, 80 and 100 L; magnesium anode, temperature and pressure relief valve |
| ARI | electric storage | 50, 80 and 100 L; 1.5 kW, 230 V |
| Velis | twin-tank electric storage | 45 and 80 L |
| Aures Multi | electric instant, several taps | 5 kW single-phase or 12 kW three-phase |
| Nuos Plus R290 | heat pump | launched in 2023, according to the Ariston Group |
Ariston 15, 30 and 50 litre heaters
The 15, 30 and 50 litre sizes fall in two families. Ariston 15 and 30 litre water heaters belong to the small Andris range, the kind of oversink unit for a single outlet that the UK range page describes. The 50 litre size starts the storage range of Pro1 Eco and ARI.
Ariston’s Nigerian page gives full data for the ARI tanks:
| ARI | 50 L | 80 L | 100 L |
|---|---|---|---|
| Mixed water at 40°C (V40) | 80 L | 125 L | 156 L |
| Heating time, +45°C | 1 h 30 min | 2 h 15 min | 2 h 50 min |
| Power and voltage | 1.5 kW, 230 V | 1.5 kW, 230 V | 1.5 kW, 230 V |
| Maximum pressure and temperature | 8 bar, 80°C | 8 bar, 80°C | 8 bar, 80°C |
| Weight empty | 22 kg | 28 kg | 32 kg |
The same page lists titanium enamelling of the tank, a magnesium anode, IPX4 protection and energy class B. For how storage and instant heaters differ in general, see water heaters.
Listed prices for Ariston water heaters
On 12 November 2026 we found no Tanzanian seller’s own web page showing a price for an Ariston water heater; the shop sites we checked returned no Ariston heater listings. Prices from other countries are not a guide and are not shown here.
Does Kitovu stock Ariston?
No. Kitovu sells from stock in Zanzibar and does not stock Ariston or any other water heater. The data above are the maker’s, for comparing offers from other sellers.