A non-pressure water heater is to heat the water to the temperature required for a person and keeps it in this state for a long time. The main element of all devices is a heating element and a water tank. A gas burner serves as a heating element in gas boilers; however, a metal device does the duty in electric heaters.
Water pressure reduces the high pressure and prevents the water heater from being damaged by external factors. High pressure occurs as a result of the overheating of the water. The internal pressure of the water heater increases depending on the temperature of the water; the safety valve opens without risking the water heater and prevents the water heater from being damaged by discharging the water inside the water heater.
Where can I buy the water pressure reducer, and who can I get it installed?
Water pressure reducers are commercially available to get installed on pressure water heaters. When choosing the water pressure reducer, the operating range should not be lower than 15 bar. A water pressure reducer that is incorrectly selected and adjusted properly may not work. The water pressure reducer must be installed at the outlet of the water meter by a licensed plumber.
My water pressure is normal, that is around four-bar. Do I still need to install a pressure reducer?
There may be differences in water pressures in the day and night consumptions and excessive increases in pressure values due to fault repair works. Using a water pressure reducer will suffice your entire house to pay off and your expenditure in a short time, as it will also eliminate your water wastage of around 30%.
What is an electric heater?
Electric water heaters have the following features:
- They do not require a big installation space.
- A small amount of water quickly heats up to operating temperature.
- The heating rate depends on the power of the heating elements (up to 30 kW).
- They only work on heating water during washing.
Instantaneous water heaters have the following structural elements that provide rapid heating of water:
- Strong outer metal contour.
- Element for heating.
- Air plug sensor.
- Temperature switch.
- Coldwater entry.
- Hot water discharge.
Models may differ in additional devices, but the main components of elements remain the same for all.
You can choose an electric heater for any apartment
By the principle of operation, the electric water heaters get divided into pressure water heaters and non-pressure water heaters.
We recommend installing pressure water heaters directly on the pipe. This issue leads such devices to experience the pressure of the water supply network, this happens regardless of whether the heater is used or not. The material and strength of the tank are important in this type of heater.
In addition, pressure devices have a safety system that includes a fuse, pressure reducer, and check valve. The use of these devices ensures the uninterrupted operation of the heater.
Non-pressure water heaters are not placed in the water supply system but are cut off from it by shut-off valves.
A standard faucet is necessary for the flowing devices. In such devices, high pressure is not created. Therefore, plastic tanks are enough for operation. Their advantage is not only cheapness but also that they are not subject to corrosion and retain heat relatively well. Among the shortcomings, their insignificant volume can be noted, which is limited to 30 liters.
Main features of electric instantaneous water heaters
When choosing heaters, it is necessary to compare them according to various characteristics.
- It is necessary to select your device based on the overall dimensions of the installation area.
- Select among several heaters (pressure or non-pressure).
- In addition, each sample should get connected to the electricity and water distribution network.
- The required device depends on the number of families and the recommended water procedures.
Approximately equal amounts of electricity are used to heat 1 liter in modern European models of heaters. Therefore, this property will be the same for all selected samples.
The price may differ when different materials get used in manufacturing the tank and the heating element to provide safety for all devices.
The appearance of the selected electric instantaneous water heaters should fit into the room. Material of the tank, design of the heater, and control system of the heating element (mechanical or electronic) are important for the resistance of the hater.
Electronic water heaters’ pressure in the bathroom
If you choose a heater with a capacity of 8 l / min and set the temperature at 40 degrees, the whole family will bathe without additional treatment of water or electricity.
Pressure water heater or non-pressure water heater: advantages and disadvantages
Pressure is the best option as it is easier to operate a pressurized or non-pressurized water heater. Open the faucet with hot water, set the temperature regulator to 40 (for shower) degrees, and start using it. No need to turn on the electricity – it is already connected. The water tank is always full and corresponds to the working pressure in the network. All operations with settings work in automatic mode. If two or more points (shower and dishwasher) need to operate simultaneously, a flowing pressure heater for a large family will be the best option.
Electric flowing heater selection is best on the total number of hot water flowing per minute. In the absence of the necessary conditions for the pressure head, use a non-pressure water heater. If you choose a non-pressure water heater, it requires several additional actions.
- Open the cold water tap and fill the 100-liter tank.
- Set the temperature of the hot water to 70 degrees.
- Turn on the heating elements.
- Wait for some time.
- The thermostat should turn off the heater.
- Open the faucet with hot (diluent cold) water.
- All operations will get carried out in reverse order.
When comparing the characteristics of a pressurized flowing heater with a depressurized flowing heater, choosing the best one gets difficult. The difference between them is a little.
Of course, it is preferable to choose a non-pressure flowing heater.
Non-pressure water heaters in the bathroom
If the water supply system has a weak, unstable working pressure with frequent shutdowns and dirty water, using a pressure water heater is not recommended.
When supplying water from local sources to the attic insulated storage tank, only a non-pressure water heater with dry heating elements is recommended.
Having all the necessary conditions and significant cash restrictions, you can choose a pressure water heater (6 kW, 3 l / min).
Water is dripping from the bottom of my water heater (safety valve). What should I do?
The safety valve under the water heaters is a mechanism that protects the water heater against high pressure. Water leakage from this protection mechanism indicates high water pressure or thermosiphon internal pressure and is normal.