Heating with a heat pump is 65.6% more economical than heating with an electric boiler, wonderful ceramic panels, infrared heaters, electric warm floors, oil heaters and other electronic heating devices and even, oh my God, “electrode” electric boilers!
It’s funny when people believe dishonest advertising and believe in miracles. But the reality is that the amount of heat released by all types of heating devices built on the basis of resistance elements is described by the law of physics, named after Joule – Lenz, which says:
Q = I2Rt
where: Q (J) is the amount of heat, I is the current flowing through the conductor, R is the resistance of the conductor, t is the time during which the current flowed through the conductor
No other regularities radically different from this formula have been found in the last 100 years.
This formula assumes the Joule heat unit, but it will be more convenient for us in the future to use a non-systematic unit of measurement – kilocalories or gigacalories, simply because modern accounting devices (heat meters) often record thermal energy precisely in kilocalories.
To obtain 1 Gcal of heat with the help of all these electrical appliances, it is necessary to spend: 1162.8 kWh of electricity.
Multiply by your tariff, you will get the cost of 1 Gcal.
For Ukraine. For a 2-zone tariff, the price of 1 Gcal obtained by the above-mentioned electrical appliances will be:
UAH 2.2 * 1162.8 kWh = UAH 2558.16.
The heat pump, in winter, will consume 400 kWh of electricity from the grid to transfer heat from the surrounding air into the house.
UAH 2.2 * 400 kWh = UAH 880
Compare UAH 2,558.16 and UAH 880! A difference of 65.6% in favor of the heat pump!
If you heat hot water with a heat pump in the summer, it will cost you 5 times cheaper than heating it with an electric boiler! You will use approximately 260 kWh to produce 1 gigacalorie.