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Osio Wall Mounted Electric Single-Phase Instant Water Heater for Bathroom / Kitchen 5.5kW
Instant Water Heaters & Instant Heater Taps

Osio Wall Mounted Electric Single-Phase Instant Water Heater for Bathroom / Kitchen 5.5kW Code: OHF-2551S

Key features:

  • Electric Single-Phase
  • Maximum Power: 5.5 kW
  • Maximum Flow Rate: 3 lt/min
  • Dimensions: 38.8 x 29 x 12.3 cm

The Osio instant water heater has a maximum power of 5.5 kW and is suitable for the home, the holiday house, or anywhere else you want to have instant hot water.

See full description
Product report

Description

Description

It is ideal for cottages as well as anywhere you want to save energy from hot water. It heats exactly the amount of water you need each time, without wasting electricity on water you won't use. It is absolutely safe and easy to install.

Easy Installation

It is installed easily and quickly in the bathroom or kitchen (application only to one supply). It is easy to use or maintain and serves daily needs such as washing hands, dishes, clothes, or other functions.

Digital Display

It is equipped with a built-in digital display that shows you the water temperature and also allows you to select it yourself.

Features:

  • Hot water in seconds
  • Absolutely safe for use in the bathroom
  • Equipped with all necessary electrical protections
  • Heats water up to 50°C in just 3 seconds
  • No need for central heating or water heater
  • Operating pressure: 0.04 – 0.6 MPa (0.4 – 6 bar)
  • Instantly get exactly the hot water you need
  • Precise water temperature control
  • No water or energy loss
  • Beautiful design for the kitchen, bathroom, cottage
  • Maximum flow rate: 3 lt/min
  • Easy and quick installation
  • Power: 5500W

What is an instant water heater?

The instant water heater is a type of water heater that heats water in real-time. It only heats the water that passes through it at that moment. This means there is no hot water storage tank. This has many advantages, such as energy savings, since only the water that is used is heated, and longer lifespan, since there is no water tank and no accumulation of salts on the resistance and other components.

It operates with electricity and is single-phase.

How It Works

The instant water heater has a cold water inlet pipe, which passes through the resistance, heats up, and exits through the hot water outlet pipe. A necessary condition for the instant water heater to initially operate is that the pressure of the cold water inlet should not be too low.

The water temperature is regulated by a thermostat, so it does not exceed a maximum value. The temperatures that the hot water reaches are pre-set so that one can use the hot water directly, without needing to mix it with cold water.

The maximum temperature that it can reach for hot water production is 50 °C, while the maximum water flow rate reaches up to 3 liters per minute. Indicatively, 38-42 °C degrees are standard for shower use.

Advantages of instant water heaters compared to traditional electric water heaters

  • It is small in size and doesn't take up much space.
  • There are no energy losses, as only the water being used is heated at that moment. Therefore, we save on the electricity bill. In a traditional water heater, the hot water that is not used is wasted.
  • The hot water used in the instant water heater is used as is, without mixing with cold, as happens in a traditional water heater. Thus, we save water as well as electricity.
  • There is no need to wait for the water to heat up. As soon as we turn on the tap, hot water runs in a few seconds. A traditional water heater takes a few minutes, depending on its size.
  • The hot water never runs out. As long as we have the tap open, we will have hot water.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Product Number
OHF-2551S

Product Details

Power Source
Electric Single Phase
Maximum Power
5.5 kW

Maximum Power

The higher the power of the water heater, the faster the water can be heated and therefore the greater the flow of water at the selected temperature.

2. Those with a power of up to 5-6kw are usually used in a sink, while those intended for use in the shower usually have a power greater than 10kw.
Maximum Flow Rate
3 lt/min
Maximum Temperature
50 °C

Maximum Temperature

As an indication, 38-42 °C degrees are usually used for a hot shower.
Temperature Setting
Degrees °C
Placement
Bathroom / Kitchen
Wall Mounted
Yes
Inverter
No
Remote Control
No

Dimensions

Height
38.8 cm
Width
29 cm
Length
12.3 cm

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (1)

Reviews

1.0
1
1.0
Review this product
  1. 5 stars
    0
  2. 4 stars
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  3. 3 stars
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  4. 2 stars
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  5. 1
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  • Georgios_Tsimogiannis95
    1
    0 out of 1 members found this review helpful
    Georgios_Tsimogiannis95

    Verified purchase

    it cannot be connected easily. the plumber couldn't manage it and it broke during the installation attempt

    Translated from Greek ·
    • Quiet
    • Construction quality
    • Value for money
    • It is not easy to install
    Did you find this review helpful?

Description & Specifications

It is ideal for cottages as well as anywhere you want to save energy from hot water. It heats exactly the amount of water you need each time, without wasting electricity on water you won't use. It is absolutely safe and easy to install.

Easy Installation

It is installed easily and quickly in the bathroom or kitchen (application only to one supply). It is easy to use or maintain and serves daily needs such as washing hands, dishes, clothes, or other functions.

Digital Display

It is equipped with a built-in digital display that shows you the water temperature and also allows you to select it yourself.

Features:

  • Hot water in seconds
  • Absolutely safe for use in the bathroom
  • Equipped with all necessary electrical protections
  • Heats water up to 50°C in just 3 seconds
  • No need for central heating or water heater
  • Operating pressure: 0.04 – 0.6 MPa (0.4 – 6 bar)
  • Instantly get exactly the hot water you need
  • Precise water temperature control
  • No water or energy loss
  • Beautiful design for the kitchen, bathroom, cottage
  • Maximum flow rate: 3 lt/min
  • Easy and quick installation
  • Power: 5500W

What is an instant water heater?

The instant water heater is a type of water heater that heats water in real-time. It only heats the water that passes through it at that moment. This means there is no hot water storage tank. This has many advantages, such as energy savings, since only the water that is used is heated, and longer lifespan, since there is no water tank and no accumulation of salts on the resistance and other components.

It operates with electricity and is single-phase.

How It Works

The instant water heater has a cold water inlet pipe, which passes through the resistance, heats up, and exits through the hot water outlet pipe. A necessary condition for the instant water heater to initially operate is that the pressure of the cold water inlet should not be too low.

The water temperature is regulated by a thermostat, so it does not exceed a maximum value. The temperatures that the hot water reaches are pre-set so that one can use the hot water directly, without needing to mix it with cold water.

The maximum temperature that it can reach for hot water production is 50 °C, while the maximum water flow rate reaches up to 3 liters per minute. Indicatively, 38-42 °C degrees are standard for shower use.

Advantages of instant water heaters compared to traditional electric water heaters

  • It is small in size and doesn't take up much space.
  • There are no energy losses, as only the water being used is heated at that moment. Therefore, we save on the electricity bill. In a traditional water heater, the hot water that is not used is wasted.
  • The hot water used in the instant water heater is used as is, without mixing with cold, as happens in a traditional water heater. Thus, we save water as well as electricity.
  • There is no need to wait for the water to heat up. As soon as we turn on the tap, hot water runs in a few seconds. A traditional water heater takes a few minutes, depending on its size.
  • The hot water never runs out. As long as we have the tap open, we will have hot water.

Manufacturer

Manufacturer Details

Warnings & Safety Information
Product Number
OHF-2551S

Product Details

Power Source
Electric Single Phase
Maximum Power
5.5 kW

Maximum Power

The higher the power of the water heater, the faster the water can be heated and therefore the greater the flow of water at the selected temperature.

2. Those with a power of up to 5-6kw are usually used in a sink, while those intended for use in the shower usually have a power greater than 10kw.
Maximum Flow Rate
3 lt/min
Maximum Temperature
50 °C

Maximum Temperature

As an indication, 38-42 °C degrees are usually used for a hot shower.
Temperature Setting
Degrees °C
Placement
Bathroom / Kitchen
Wall Mounted
Yes
Inverter
No
Remote Control
No

Dimensions

Height
38.8 cm
Width
29 cm
Length
12.3 cm

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (1)

1.0
1
1.0
Review this product
  1. 5 stars
    0
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Georgios_Tsimogiannis95
    1
    0 out of 1 members found this review helpful
    Georgios_Tsimogiannis95

    Verified purchase

    it cannot be connected easily. the plumber couldn't manage it and it broke during the installation attempt

    Translated from Greek ·
    • Quiet
    • Construction quality
    • Value for money
    • It is not easy to install
    Did you find this review helpful?
129,00 €
14,00 €   shipping cost