The antifreeze performance laboratory of gas heating furnaces is to test the freezing resistance performance of heating furnaces in windy conditions. Adjust the temperature in the test chamber to -10ºC±2ºC, and blow it to the heating furnace with a wind speed of 3m/s to test its antifreeze performance. This antifreeze performance laboratory meets the GB 25034-2020 standard.
Meet the standard: GB 25034-2020
Test Methods:
1. Blow air for 4 hours in the standby state. During the test, the temperature outside the room should be kept constant to ensure that the indoor thermostat will not start the heating furnace, and then test the water temperature of heating water, domestic hot water and condensed water.
2. In the heating state, run for 0.5h under the minimum heat load, and test the water temperature of heating water, domestic hot water and condensate water.
3. In the state of domestic hot water, run for 0.5h under the minimum heat load, and test the temperature of heating water, domestic hot water and condensate water.
1. Windless state test:
Adjust the temperature in the constant temperature room to -20ºC±2ºC, and conduct the test according to the following steps:
1. Place it in standby mode for 4 hours. During the test, the temperature outside the constant temperature room should ensure that the indoor thermostat does not start the heating furnace, and then test the temperatures of the heating water, domestic hot water and condensate water;
2. Run for 0.5 hours under minimum heat load in heating state to test the temperatures of heating water, domestic hot water and condensate water;
3. Run for 0.5 hours under the minimum heat load of domestic hot water to test the temperatures of heating water, domestic hot water and condensate water.
2. Windy state test:
Adjust the temperature in the constant temperature room to -10ºC±2ºC. The front end of the air duct is cylindrical with a length of 1.5m and a diameter of 1.2m; blow it to the heating furnace at a wind speed of 3m/s. Follow the following steps to test:
1. Blow air for 4 hours in standby mode. During the test, the temperature outside the constant temperature room should ensure that the indoor thermostat does not start the heating furnace, and then test the temperatures of the heating water, domestic hot water and condensate water;
2. Run for 0.5 hours under minimum heat load in heating state to test the temperatures of heating water, domestic hot water and condensate water;
3. Run for 0.5 hours under the minimum heat load of domestic hot water to test the temperatures of heating water, domestic hot water and condensate water.
| Internal dimensions |
1800*2200*1900 (width*height*depth) |
| Temperature range |
-15~30ºC |
| Humidity range |
20~98%RH |
| Heating and cooling rate |
0ºC→+35ºC ≤15min; +25ºC→-15ºC ≤40min |
| Internal material |
SUS304 stainless steel |
| External material |
color steel plate |
| Insulation material |
100mm polyurethane insulation layer |
| Door |
1900H/1200W, double-layer sealing ensures no gas leakage |
| Window |
500/500mm, double-layer tempered glass with defrost and defogging function |
| Wind channel |
Built-in stainless steel air duct top air outlet and bottom air return |
| exhaust |
A set of flue gas exhaust pipes installed on the top |
| illumination |
4 fluorescent lamps |
| Oxygen device |
(Optional) Equipped with constant oxygen device |
Audited Supplier 
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