Instant Water Heaters & Instant Heater Taps

RYK-002 Electric Single-Phase Instant Water Heater for Bathroom / Kitchen 5kW

Key features:

  • Electric Single-phase
  • Maximum Power: 5 kW
  • Maximum Flow Rate: 6 lt/min
  • Dimensions: 29 x 20 x 7 cm

The instant water heater has a maximum power of 5 kW and is suitable for the home, the cottage, or anywhere else you want to have instant hot water.

See full description

Description

Description

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 gives you the option to select it yourself.

What is an instant water heater?

The instant water heater is a type of water heater that heats water in real-time. It heats only the water that passes through it at that moment. 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, as there is no water tank and no accumulation of salts in the resistance and other components.

It operates with electricity and is single-phase.

How It Works

The instant water heater has an inlet pipe for cold water, which passes through the heating element, gets heated, and exits through the hot water outlet pipe. A necessary condition for the instant water heater to initially operate is the pressure of the incoming cold water must not be too low.

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

The maximum temperature that can be reached for hot water production is 60 °C, while the maximum water flow rate reaches up to 6 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 does not take up much space.
  • There are no energy losses, as only the water being used at that moment is heated. Therefore, we save on the electricity bill. In a traditional water heater, the hot water that is not used goes to waste.
  • 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 also save water, in addition to electricity.
  • There is no need to wait for the water to heat up. As soon as we turn on the tap, hot water flows in a few seconds. The 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

OEM
See full description

Specifications

Specifications

Product Details

Power Source
Electric Single Phase
Maximum Power
5 kW
Maximum Flow Rate
6 lt/min
Maximum Temperature
60 °C
Temperature Setting
Degrees °C
Placement
Bathroom / Kitchen
Wall Mounted
No
Inverter
No
Remote Control
No

Dimensions

Height
29 cm
Width
20 cm
Length
7 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 (22)

Reviews

  1. 12
  2. 3
  3. 3
  4. 1
  5. 3
Review this product
  • Quiet
  • Can the water temperature be easily adjusted?
  • Is it easy to install?
  • Water heating speed
  • Value for money
  • Construction quality
  • Economical in consumption

Reviews photos

Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • georgekarababas
    1
    3 out of 3 members found this review helpful

    Verified purchase

    Unfortunately, this is the worst thing I could have purchased.

    It was installed in winter.
    The hot water lasts for about 1 second.
    After that, it's just slightly warmer than the network's water.
    I deeply regret it.

    Maybe I should have been suspicious because of the price.
    I saw that it has high electricity consumption, I also had experience with another one in the past and I was misled.

    Not only do I not recommend it!
    I got burned!!!
    Let me warn the next person to be careful.

    Translated from Greek ·
    Did you find this review helpful?
  • It is a very lightweight and inexpensive construction that does its job decently, that is, to provide hot water instantly. I installed it under the kitchen counter for hot water supply. It has moderate pressure, which I consider logical because that's how these devices work. I wouldn't recommend it for a bath; there you need a more expensive device with better specifications, over 5 watts and inverter technology, which this one does not have. At the tap in winter, it is set to 40 degrees and gives around 37; with a little patience and reducing the pressure from the inlet, it might even exceed 40 under certain conditions. Overall, I give it 3 stars because I believe it is average as a Chinese-made product, but value for money for the reason I bought it. I would buy it again, but only for the kitchen sink.

    Translated from Greek ·
    Did you find this review helpful?
  • antonis.georgiou.984
    5
    1 out of 1 members found this review helpful

    Verified purchase

    I have installed it in the bathroom and it is very easy to install and very reliable. I would buy it again.

    Translated from Greek ·
    Did you find this review helpful?
  • pavlilia66
    5
    2 out of 2 members found this review helpful

    Verified purchase

    Very convenient but be careful when you connect it; the water pressure should not be strong....it needs to be low to allow it to heat up.

    Translated from Greek ·
    Did you find this review helpful?
  • Tolis_Tolis3261
    1
    6 out of 6 members found this review helpful

    Verified purchase

    DO NOT BUY IT! WARNING! Fortunately, I heard it! At 01:00 at night, a sound suddenly occurs (like a sizzle), as if something is burning a lot and you immerse it in water. I go to the kitchen and see smoke accompanied by a strong smell! I immediately turned off the circuit breaker and disconnected it from both the power and the water. Of course, it kept burning until some time passed. I bought it this winter and I am completely disappointed. The following text is my original comment and I leave it here for clarity only!

    I need it for the kitchen. I have it set at 45°C, it has relatively low flow and it takes about 1:30 minutes or a little more to reach its target. The reduced flow will cost two stars. Below you will see the picture as well as the video. Let me clarify that if I increase the flow, the water heater cannot reach the 45°C that I want.

    Translated from Greek ·
    • Quiet
    • Can the water temperature be easily adjusted?
    • Economical in consumption
    • Construction quality
    • Water heating speed
    • Value for money
    • It is not easy to install
    Did you find this review helpful?
  • gkanistras
    2
    3 out of 3 members found this review helpful

    Verified purchase

    It went into the kitchen. You have to significantly reduce the water speed to get hot water at 42 degrees and it wasn't even winter. If it had been installed in the bathroom, it probably wouldn't be sufficient. In the winter, the bathroom requires more KW (>6KW), otherwise you will have to help it by preheating the water slightly with a traditional water heater.

    Translated from Greek ·
    • Quiet
    • Is it easy to install?
    • Economical in consumption
    • Construction quality
    • Water heating speed
    • Value for money
    • Is the water temperature easily adjustable?
    Did you find this review helpful?
  • Incredible performance!! I highly recommend it!!!

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    It is a very good tool, thank you very much

    Translated from Greek ·
    Did you find this review helpful?
  • Very good size and so far in its use it is easy and powerful.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Fantastic water heater

    Translated from Greek ·
    Did you find this review helpful?
  • Very good, a joy

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Perfect, fast, simple words

    Translated from Greek ·
    • Construction quality
    • Water heating speed
    • Quiet
    • Value for money
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Economical in consumption
    Did you find this review helpful?
  • 4
    2 out of 2 members found this review helpful

    It's all plastic. Nevertheless, it does its job well. Because its cost is just fine

    Translated from Greek ·
    • Water heating speed
    • Quiet
    • Value for money
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Construction quality
    • Economical in consumption
    Did you find this review helpful?
  • 1
    5 out of 5 members found this review helpful

    Within a month it broke. Water was leaking everywhere, until it short-circuited.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

  • Verified purchase

    • Water heating speed
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Moderate noise
    • Value for money
    • Construction quality
    • Economical in consumption
    • Construction quality
    • Water heating speed
    • Quiet
    • Value for money
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Economical in consumption
  • Unfortunately, this is the worst thing I could have purchased.

    It was installed in winter.
    The hot water lasts for about 1 second.
    After that, it's just slightly warmer than the network's water.
    I deeply regret it.

    Maybe I should have been suspicious because of the price.
    I saw that it has high electricity consumption, I also had experience with another one in the past and I was misled.

    Not only do I not recommend it!
    I got burned!!!
    Let me warn the next person to be careful.

    Translated from Greek ·
    3
  • It is a very lightweight and inexpensive construction that does its job decently, that is, to provide hot water instantly. I installed it under the kitchen counter for hot water supply. It has moderate pressure, which I consider logical because that's how these devices work. I wouldn't recommend it for a bath; there you need a more expensive device with better specifications, over 5 watts and inverter technology, which this one does not have. At the tap in winter, it is set to 40 degrees and gives around 37; with a little patience and reducing the pressure from the inlet, it might even exceed 40 under certain conditions. Overall, I give it 3 stars because I believe it is average as a Chinese-made product, but value for money for the reason I bought it. I would buy it again, but only for the kitchen sink.

    Translated from Greek ·
    0
  • I have installed it in the bathroom and it is very easy to install and very reliable. I would buy it again.

    Translated from Greek ·
    1
  • Very convenient but be careful when you connect it; the water pressure should not be strong....it needs to be low to allow it to heat up.

    Translated from Greek ·
    2
  • See all

Description & Specifications

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 gives you the option to select it yourself.

What is an instant water heater?

The instant water heater is a type of water heater that heats water in real-time. It heats only the water that passes through it at that moment. 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, as there is no water tank and no accumulation of salts in the resistance and other components.

It operates with electricity and is single-phase.

How It Works

The instant water heater has an inlet pipe for cold water, which passes through the heating element, gets heated, and exits through the hot water outlet pipe. A necessary condition for the instant water heater to initially operate is the pressure of the incoming cold water must not be too low.

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

The maximum temperature that can be reached for hot water production is 60 °C, while the maximum water flow rate reaches up to 6 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 does not take up much space.
  • There are no energy losses, as only the water being used at that moment is heated. Therefore, we save on the electricity bill. In a traditional water heater, the hot water that is not used goes to waste.
  • 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 also save water, in addition to electricity.
  • There is no need to wait for the water to heat up. As soon as we turn on the tap, hot water flows in a few seconds. The 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

OEM

Product Details

Power Source
Electric Single Phase
Maximum Power
5 kW
Maximum Flow Rate
6 lt/min
Maximum Temperature
60 °C
Temperature Setting
Degrees °C
Placement
Bathroom / Kitchen
Wall Mounted
No
Inverter
No
Remote Control
No

Dimensions

Height
29 cm
Width
20 cm
Length
7 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 (22)

  1. 12
  2. 3
  3. 3
  4. 1
  5. 3
Review this product
  • Quiet
  • Can the water temperature be easily adjusted?
  • Is it easy to install?
  • Water heating speed
  • Value for money
  • Construction quality
  • Economical in consumption

Reviews photos

Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • georgekarababas
    1
    3 out of 3 members found this review helpful

    Verified purchase

    Unfortunately, this is the worst thing I could have purchased.

    It was installed in winter.
    The hot water lasts for about 1 second.
    After that, it's just slightly warmer than the network's water.
    I deeply regret it.

    Maybe I should have been suspicious because of the price.
    I saw that it has high electricity consumption, I also had experience with another one in the past and I was misled.

    Not only do I not recommend it!
    I got burned!!!
    Let me warn the next person to be careful.

    Translated from Greek ·
    Did you find this review helpful?
  • It is a very lightweight and inexpensive construction that does its job decently, that is, to provide hot water instantly. I installed it under the kitchen counter for hot water supply. It has moderate pressure, which I consider logical because that's how these devices work. I wouldn't recommend it for a bath; there you need a more expensive device with better specifications, over 5 watts and inverter technology, which this one does not have. At the tap in winter, it is set to 40 degrees and gives around 37; with a little patience and reducing the pressure from the inlet, it might even exceed 40 under certain conditions. Overall, I give it 3 stars because I believe it is average as a Chinese-made product, but value for money for the reason I bought it. I would buy it again, but only for the kitchen sink.

    Translated from Greek ·
    Did you find this review helpful?
  • antonis.georgiou.984
    5
    1 out of 1 members found this review helpful

    Verified purchase

    I have installed it in the bathroom and it is very easy to install and very reliable. I would buy it again.

    Translated from Greek ·
    Did you find this review helpful?
  • pavlilia66
    5
    2 out of 2 members found this review helpful

    Verified purchase

    Very convenient but be careful when you connect it; the water pressure should not be strong....it needs to be low to allow it to heat up.

    Translated from Greek ·
    Did you find this review helpful?
  • Tolis_Tolis3261
    1
    6 out of 6 members found this review helpful

    Verified purchase

    DO NOT BUY IT! WARNING! Fortunately, I heard it! At 01:00 at night, a sound suddenly occurs (like a sizzle), as if something is burning a lot and you immerse it in water. I go to the kitchen and see smoke accompanied by a strong smell! I immediately turned off the circuit breaker and disconnected it from both the power and the water. Of course, it kept burning until some time passed. I bought it this winter and I am completely disappointed. The following text is my original comment and I leave it here for clarity only!

    I need it for the kitchen. I have it set at 45°C, it has relatively low flow and it takes about 1:30 minutes or a little more to reach its target. The reduced flow will cost two stars. Below you will see the picture as well as the video. Let me clarify that if I increase the flow, the water heater cannot reach the 45°C that I want.

    Translated from Greek ·
    • Quiet
    • Can the water temperature be easily adjusted?
    • Economical in consumption
    • Construction quality
    • Water heating speed
    • Value for money
    • It is not easy to install
    Did you find this review helpful?
  • gkanistras
    2
    3 out of 3 members found this review helpful

    Verified purchase

    It went into the kitchen. You have to significantly reduce the water speed to get hot water at 42 degrees and it wasn't even winter. If it had been installed in the bathroom, it probably wouldn't be sufficient. In the winter, the bathroom requires more KW (>6KW), otherwise you will have to help it by preheating the water slightly with a traditional water heater.

    Translated from Greek ·
    • Quiet
    • Is it easy to install?
    • Economical in consumption
    • Construction quality
    • Water heating speed
    • Value for money
    • Is the water temperature easily adjustable?
    Did you find this review helpful?
  • Incredible performance!! I highly recommend it!!!

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    It is a very good tool, thank you very much

    Translated from Greek ·
    Did you find this review helpful?
  • Very good size and so far in its use it is easy and powerful.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Fantastic water heater

    Translated from Greek ·
    Did you find this review helpful?
  • Very good, a joy

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

    Perfect, fast, simple words

    Translated from Greek ·
    • Construction quality
    • Water heating speed
    • Quiet
    • Value for money
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Economical in consumption
    Did you find this review helpful?
  • 4
    2 out of 2 members found this review helpful

    It's all plastic. Nevertheless, it does its job well. Because its cost is just fine

    Translated from Greek ·
    • Water heating speed
    • Quiet
    • Value for money
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Construction quality
    • Economical in consumption
    Did you find this review helpful?
  • 1
    5 out of 5 members found this review helpful

    Within a month it broke. Water was leaking everywhere, until it short-circuited.

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

  • Verified purchase

    • Water heating speed
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Moderate noise
    • Value for money
    • Construction quality
    • Economical in consumption
    • Construction quality
    • Water heating speed
    • Quiet
    • Value for money
    • Is it easy to install?
    • Can the water temperature be easily adjusted?
    • Economical in consumption
  • Unfortunately, this is the worst thing I could have purchased.

    It was installed in winter.
    The hot water lasts for about 1 second.
    After that, it's just slightly warmer than the network's water.
    I deeply regret it.

    Maybe I should have been suspicious because of the price.
    I saw that it has high electricity consumption, I also had experience with another one in the past and I was misled.

    Not only do I not recommend it!
    I got burned!!!
    Let me warn the next person to be careful.

    Translated from Greek ·
    3
  • It is a very lightweight and inexpensive construction that does its job decently, that is, to provide hot water instantly. I installed it under the kitchen counter for hot water supply. It has moderate pressure, which I consider logical because that's how these devices work. I wouldn't recommend it for a bath; there you need a more expensive device with better specifications, over 5 watts and inverter technology, which this one does not have. At the tap in winter, it is set to 40 degrees and gives around 37; with a little patience and reducing the pressure from the inlet, it might even exceed 40 under certain conditions. Overall, I give it 3 stars because I believe it is average as a Chinese-made product, but value for money for the reason I bought it. I would buy it again, but only for the kitchen sink.

    Translated from Greek ·
    0
  • I have installed it in the bathroom and it is very easy to install and very reliable. I would buy it again.

    Translated from Greek ·
    1
  • Very convenient but be careful when you connect it; the water pressure should not be strong....it needs to be low to allow it to heat up.

    Translated from Greek ·
    2
  • See all
46,98 €
14,00 €   shipping cost