Frequently asked questions about the Water boilers category
What is an electric water heater?
It is a storage water heater in which water is heated by a built-in electric heating element. The water heater accumulates hot water in the tank and automatically maintains the set temperature.
What is the difference between an electric and an indirect water heater?
An electric water heater heats water independently, without connecting to a boiler or heat pump. An indirect water heater works only in conjunction with a heating system. An electric model is easier to install and suitable for any home.
What size water heater should I choose for my family?
For 1–2 people, 50–80 litres is sufficient; for a family of 3–4, 100–150 litres is recommended; for 5 or more people, 200 litres and above is advised. The greater the hot water consumption, the larger the capacity recommended.
How much electricity does a water heater consume?
Consumption depends on the tank volume and the power of the heating element. On average, a 100-litre water heater uses 1.5–2 kWh per heating cycle. Models with good tank insulation significantly reduce heat loss in standby mode.
What heating element power output should I choose?
The standard power output for domestic water heaters ranges from 1.5 to 3 kW. A more powerful element heats water faster but requires appropriate electrical wiring. For most apartments, 2 kW is the optimal choice.
What is the difference between a vertical and a horizontal water heater?
A vertical water heater takes up less floor space and retains hot water better in the upper part of the tank — this is the most common option. A horizontal model is convenient for low ceilings or limited space, for example when mounted under the ceiling in a bathroom. It is important to note that the position of the heating element and anode differs between the two.
How long does the heating element last and can it be replaced?
With normal water quality, the heating element lasts 5–10 years. Replacement is carried out without purchasing a new water heater — it is a standard maintenance procedure performed by a plumber.
Is a magnesium anode necessary in a water heater?
Yes, absolutely. The anode protects the tank from corrosion and significantly extends the service life of the water heater. It should be checked every 1–2 years and replaced when necessary.
Are there water heaters with Wi-Fi and mobile app control?
Yes, modern models support Wi-Fi connectivity and smartphone control. Using the app, you can set heating schedules, monitor temperature, receive notifications and track electricity consumption — all of which helps save energy and manage the water heater remotely.
Is it safe to use a water heater when there are pressure fluctuations in the water supply?
Yes, provided that a safety valve and expansion tank are correctly installed. These components are mandatory and protect the water heater from excessive pressure during the heating process.
Which internal tank lining is better — enamel, stainless steel or glass porcelain?
Each material has its advantages: an enamelled tank is affordable but sensitive to temperature fluctuations; stainless steel is durable and does not require an anode; glass porcelain coating is corrosion-resistant and ensures water purity. The choice depends on the water quality in your area and your budget.
How should a water heater be installed — vertically or horizontally?
Most models support both installation options, but it is important to verify this in the technical specifications of the specific model before purchasing. Incorrect orientation during installation may lead to improper functioning of the heating element and accelerated wear.
How do I order a water heater from Sitypro.com?
The right model can be found in the section 'Water Supply → Heating → Water Heaters' on sitypro.com. Delivery is available across Estonia. For order enquiries, call +372 536 16980 or leave a request on the website.
New Arrivals in the Water boilers Category in 2026
Best sellers in the Water boilers category in 2026
- SIMAT 80 L Horizontal Water Heater 1.5 kW — 179.40€
- Ariston water heater flange gasket 10/15/30 L — 4.28€
- WATER HEATER ELECTROLUX MXM WIFI 50 EEC 41L — 224.75€
- Ariston Andris RS — 152.22€
- Water heater with Ariston anode 15 L — 4.84€
Cheap products in the Water boilers category
Expensive products in the Water boilers category
Price of products in the Water boilers Category
Water boilers: 1.89€ — 567.58€ (79)