Is it reliable to heat the fish pond with heat rods?

Fish pond: build a shed and lay electric heating wires.

Nanning has a suitable climate and good water quality, which is very suitable for the survival of tilapia, but the biggest headache for farmers is the wintering of tilapia. 20 12, 12 at the end of February, the extension station issued a "low temperature warning" to the majority of farmers by SMS, suggesting that farmers should make all preparations for fish farming. The early warning made many farmers ready before the cold current came. 6543810.5, the reporter came to Jinshahu Reservoir in Xixiangtang District, Nanning, and saw a fish pond with an area of more than 8 mu covered with film. Standing at the edge of the fish pond, the mountain wind came with drizzle, and my face and fingers felt pain immediately. The reporter explored the water temperature of the fish pond by hand and felt that the temperature was more pleasant.

Chen Bennan, the owner of the pond, said that the outdoor temperature was around 5℃, but the water temperature in the pond had reached 16℃. "There are 500,000 fry in it, which can be safely wintered. If we don't take measures in such cold weather, we may lose everything. Now that the greenhouse has been built, except for the cost, the most conservative can earn nearly 65,438+10,000 yuan. " Chen Bennan pointed to another pond and said, "This pond of 1 1 mu will also be covered with a greenhouse tomorrow. After it is covered, hundreds of thousands of fry will come back."

Mr. Luo, a farmer from Jinling Town, which is more than 40 kilometers away from Jinsha Lake Reservoir, also came here. He came specially to get the heating wire. In order to reduce the frostbite of tilapia as much as possible, the extension station bought a batch of electric heating wires with special subsidies, and Gan Wenlin helped him deliver the goods. The 300,000 fry he is currently raising are all in the cold current, and he can't wait to go back and stand up immediately. So how do electric heating wires keep warm?

Gan Wenlin said that this is a pilot project they started this winter. Longan farmer Lu was the first beneficiary. His heating wire was installed last week. After several days of temperature test, the effect is good at present. The extension station separated an area of about 250 square meters in his 4 mu fish pond, and set up three ***300-meter electric heating wires, which can provide 3000 watts of electric heating. Lu said: "Before heating, the water temperature was between 1 1~ 12℃, and after erection, the temperature of insulation belt was above 13.5℃. Fish are also spiritual. They gather around electric heating wires to keep warm. I am going to add two more heating wires, which will be more reassuring. "