In December, he heated the house with the help of TN and paid less than a neighbor with gas
Recently, my wife and I bought a new computer desk in the bedroom, and I took it by taxi. We talked with the taxi driver. It turned out that he also lives in a country house. The house (just like ours) is a log house with an area of 100 square meters. It also stands not far from us.
Only in December the taxi driver paid 6,000 rubles for heating it. He drowns it with a gas boiler, wiring is done around the house, there are radiators. In the system - ethylene glycol (they say it is better than water, if you know - correct me in the comments). Plus December, he and his wife heated up the house with convectors and raised another 5 thousand rubles. Total 11 thousand / month.
Our picture is different. I heat the house with a heat pump (popularly - air conditioning) and paid only 6,000 rubles for December. Now I'll tell you on my fingers why it is cheaper to drown with a conductor.
Look: when you plug a convector or oil heater into the socket, the efficiency of which is certainly 100%, you get exactly as much kW of heat as the installation took from the socket.
And this is understandable: here, electricity is spent on direct heating of the element. In the case of a radiator, this is a heating element and 2 flasks with oil, and in the case of a convector - an aluminum heating element sealed in a flask with quartz sand.
The air conditioner works in a different way.(cm. Carnot cycle). In the radiator of the air conditioner (near the external block, in the professional environment "at Carlson's") there is a freon exchanger. When compressed and low air temperature, freon heats up.
The freon heated (~ 60-65 ° C) is pumped into the house by the same compressor through a four-way valve. Inside your house, a copper tube with freon is blown by a fan, supplying warm air (up to 50 ° C at the outlet) into the room.
Why is it more effective?
Yes, because energy is spent not on direct heating, but on compression and pumping of freon, blowing off the exchanger in the house. Plus, the compressor is now inverter (they themselves choose the power of work), due to this I spend 500-600 watts per hour heating 60 "squares" of my house (the remaining 40 sq.m. sit on convectors).
Evidence base: in this video I measure through a Robiton PM-2 wattmeter, the temperature in the room is 21 degrees, outside is -7.
To the decision to heat the house with air conditioning, I was prompted by the relevant topics on the Forumhouse, as well as the YouTube channel "as it was done for me". Thanks to them for saving 10-12 thousand on heating every month. I advise those who wish to refer to the same sources.
Here is the model and brand of my air conditioner. I have block 18, designed for 50 sq.m., however, in fact, 60 "squares" calmly heats: 2 bedrooms, a hall, a corridor. Only the kitchen and the bathroom sit on the convectors.
Well, the device that you saw in the video is a Robiton PM-2 outlet wattmeter. Shows voltage drops, power in watts, energy consumption in kilowatts, can count according to the night-day rate and much more. With him, I know how much I have for both the refrigerator and the boiler.
P.S.: My price per kWh of electricity: 2.75 night, 4.78 peak, 3.93 half-peak.