Hotpoint-Ariston FAST R ONM 11
 | Outdated Product Type: tankless; Energy source: gas; Power source: energy independent; Performance (Δt ~25 °C) (L/min): 11; Heating elements: 1; thermostat; overheat protection; dry heating protection; safety valve; gas control; draft sensor; Pipe connection: bottom; Dimensions (cm): 58x31x21; |
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Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Hotpoint-Ariston 2026 - new arrivals, bestsellers, and the most relevant models Hotpoint-Ariston.
Accumulative electric boilers are good, I do not argue. But if it is impossible to additionally load the electrical network, as in my case, then you have to look for other ways of heating. I decided that I would use gas. Yes, it's not cheap, but since there is no other alternative, I bought just such a flow model. Such a device is the best way to quickly get a lot of hot water. Unlike storage boilers, a high temperature is obtained in just a few seconds. The water performance is decent, from 15 degrees at the inlet to 50 at the outlet it can heat about 8 liters per minute. The maximum temperature reaches 85 degrees, that is, almost boiling water. For household needs (bath-shower + water supply for the kitchen), this temperature and amount of water is enough. All control, but you can control the speed of the water flow and the power of the burner, purely mechanical, no electronics. Even the electric ignition system is powered by two large LR20 alkaline batteries, that is, the heater is completely non-volatile from the mains. There are all safety systems - protection against overheating and gas control, which prevents gas leakage in the event of flame extinction. Unlike a storage electric boiler, hot water cannot be turned on in a thin stream here. That is, of course, you can turn it on, but the boiler will not work, it turns on only at a certain pressure, which is slightly less than average. So it turns out that the consumption of both water and gas is often excessive. Another such instantaneous water heater is sensitive to water hardness and in my conditions requires mandatory annual cleaning and this will have to be done by inviting specialists, which means additional expenses. Natural draft to remove combustion products requires competent arrangement of the chimney, it also took a lot of money. |
Balanced System
The Hotpoint-Ariston FAST R ONM 11 gas water heater offers a successful combination of key features for everyday use. With a power of 18.5 kW and a gas consumption of 2.23 m³/h, it provides up to 11 liters of hot water per minute, making it suitable for simultaneously servicing multiple water outlets. The efficiency is achieved through the use of a reliable brass hydraulic group and a copper heat exchanger, which is noted for its high thermal conductivity. Of particular note is the stable operation of the device at water pressure ranging from 0.15 to 10 bar, making the model suitable both for an apartment in a multi-story building and for a country house or private home in rural areas. An additional advantage is independence from the electrical network, so the water heater will continue to work even during power outages.
Safety Measures
The model is designed for safe operation and does not require complex user involvement. The burner ignition is automatic, and setting it up simply requires selecting the desired water pressure and temperature, displayed on the screen, using the rotary controls on the body. To protect against emergency situations, there are draft control systems preventing combustion products from entering the room, protection against gas leakage when the flame goes out, as well as water overheat control in the circuit, which helps prevent damage to the heat exchanger and reduces the risk of burns.
