Ariston Pro Eco 80L Electric Boiler: Cutting Electricity Costs for 3-Person Family & G11 Tariff

Hello, I wanted to know how to reduce the cost of electricity for the electric boiler or better to turn it off during the night or the day after bathing etc. Is it better to have turned on 24 hours a day, I am asking for advice because I have very large electricity bills here are a few of my data: I have an electric boiler ARISTON PRO ECO 80 liters, the temperature most often 50 degrees, a family of 3 (2 adults, 1 child), tariffs for normal electricity G11.

Since you have a 24-hour tariff, you should keep the temperature in the tank as low as possible and heat when needed, and avoid long storage of hot water. At night you should not heat, or if you need to heat up the hot water, the heater should turn on just an hour before the residents get up.

If you consume a lot of electricity for heating hot water, I would consider switching to a dual zone tariff.

Hello !
I am surprised by such questions as yours on the forum, it is so difficult to check for yourself how to heat up "cheaper".

I had a 120L boiler, turned it on two and a half hours before the planned bath, then turned it off.
In the boiler there was always hotter water than the one that flies directly from the water supply and in the morning you could wash, it was not ice cold.

ALe exceeds PLN 120-150 per month?

yes, unfortunately, it exceeds PLN 150.

None of your proposals will actually save you electricity. Container insulation is so good that the parking loss is several pennies a day and you can practically avoid them. What does it mean for big electricity bills and how can I be sure it's a boiler effect? 3 people, let everyone use about 70 liters of hot water per day, that is, a total of about 200 liters. the average temperature of cold water is 10 * C you use water not hotter than 45 * C (these 50 * C mix with cold). Heating 200 liters by 35 * C is about 8 kWh of energy for which you will pay 4-5 zlotys, that is 120-150 zlotys per month and you will not turn off any noticeable savings.
Greetings

Hello. It heats the water electrically in the summer. Boiler 100 liters. One tariff. I have set about 45 - 47 degrees on the thermostat. Do I turn off for the night or all the time, the difference can not be seen and for PLN 20 a month there is nothing to cling with shutting down because a few times to bath and there is no hot water because someone forgot to attach. Every day you use it does not make sense to turn it off. Like every other day, it makes sense. The boiler I have in the attic and I warmed it up with wool, the heater turns on twice a day as you wash your hands after a pee or a pile.

Szczecin62 wrote:

Container insulation is so good that the parking loss is several pennies a day and you can practically avoid them.

It's good or it's not, that's the question
Heat losses are proportional to the temperature difference between the water and the boiler's surroundings. Without playing in the calculation of how much pennies we lose or gain, it is advantageous to keep the boiler turned on for 24 hours with the lowest temperature, which will ensure continuous consumption of hot water.
For me, the plot is 40 ° C.

For me, I spent 180 zlotys for two months for the WHOLE HOUSE with hot water heating in the second tariff (G12w).
You'd better ask your wife how much energy she spills into the sink. Not only in the form of CWU, but also from cooking.
Personally, for one hand wash, I use about 0.5-1 l of water, and for shower 7-10 l of water. Recently, when I was finishing the bath, only warm water came, that is, everything would agree. A lot more clean, cold water will be used to flush the toilet.
You can pay attention to the connection of the boiler, as a result of which there is no gravitational leakage of heat into the pipes. The boiler should hold heat for 24 hours when no hot water is drawn and the heater is turned off. Of course, the temperature will drop a little. By turning on the heater again and measuring the working time or measuring the wattmeter, you will measure how much you lose on the so-called parking losses.

Nice few years back, a colleague brought me from Germany a used electric heater 60 l Stiebel. I have it so far and I will not exchange it for another unless it falls apart from old age The tank is made of thick copper sheet plus excellent foam insulation. About three years ago, the last heaters were burnt so I was supporting new ones. But to the point. The boiler has two sections of heaters. "Duty" who (original something about 1500W) and thermostatic, which maintains the temperature of the water to a temperature of about 20-30 degrees. This temperature is enough for "ordinary" use. When I want to take a bath in a bathtub or take a shower, just press the button on the thermostat and the second section of heaters (probably 2500W originally were). he then heats up to the max without regulation, perhaps up to 65 degrees. All you need to do is wait a few minutes to get a long shower in a comfortable environment. Even if I forget to turn off the "turbo" option, after reaching temp, I will turn off all heaters. The boiler is in an insecure attic and even in the winter it keeps warm water until morning. My total electricity bills are around PLN 125 per month

Although the higher the temperature in the boiler, the greater the losses on the special methods of switching on / off will not save much. If you do not eat it, you do not take it as my mother said. Therefore, it is worth going to the tariffs from the G12 group, probably the most profitable will be G12w. For this a time switch that keeps you warm when the electricity is cheap, with the "manual" button to easily heat it in the first tariff when you need it. Remaining with G11, you can additionally insulate it and add a layer of aluminum foil (or thermal blanket) to limit the infrared escape. For me, the old metallized foil that was after the renovation clearly reduced the downtime losses. Add a few cm additional warming to the upper lid, because this is where most heat escapes. It can be wrapped with a layer of wool or an additional polystyrene housing, but all of the above (together with a reduction in temperature) will give less savings than a non-investment tariff change. In G12w it is cheap between 13-15, 22-6 in the morning and all day on Saturdays, Sundays and holidays. It saves not only on the boiler switched on when electricity is cheap but also on computers, TV, household appliances working in this time.