In winter heating and daily hot water supply, low nitrogen variable frequency wall mounted boilers have gradually become the choice of many households, but many users may wonder before purchasing: Does low nitrogen variable frequency wall mounted boiler cost gas? After all, low nitrogen variable frequency wall mounted boilers not only need to meet the requirements of environmental protection and low nitrogen emissions, but also bear the long-term cost of gas use. Understanding its energy consumption situation is necessary to avoid the "hidden expenses" in subsequent use.

Energy saving principle of low nitrogen variable frequency wall mounted boiler: reducing gas consumption technically

To determine whether a low nitrogen variable frequency wall mounted boiler consumes gas, it is necessary to first understand its core energy-saving technology - variable frequency control, which is also the key difference between it and ordinary wall mounted boilers.

Variable frequency technology: on-demand adjustment to avoid "ineffective energy consumption"

Most ordinary wall mounted boilers operate at a fixed frequency, and once started, they will continue to work at their rated power. After reaching the set temperature, they will stop and restart after the temperature drops. This "start stop cycle" will cause a lot of gas waste: more gas is required to heat the combustion chamber during start-up, and frequent start stop cycles will keep the equipment in a high load state.

The low nitrogen variable frequency wall mounted boiler is equipped with a variable frequency fan and variable frequency water pump, which can dynamically adjust the power according to actual needs. For example, during winter heating, when the indoor temperature approaches the set value, the wall mounted boiler will automatically reduce power and maintain low flame combustion, which not only maintains stable temperature but also avoids gas consumption during "full load operation"; When using hot water in daily life, the heating power can also be adjusted according to the water output of the faucet, avoiding the situation of "using a small amount of hot water but consuming a large amount of gas".

Low nitrogen design: environmental protection and energy conservation are not contradictory

Some users are worried that "low nitrogen emissions" will sacrifice energy consumption, but it is not the case. The low nitrogen technology of low nitrogen variable frequency wall mounted boilers (such as fully premixed combustion, staged combustion, etc.) essentially allows for more thorough mixing of gas and air, improving combustion efficiency - the more complete the gas combustion, the less gas is consumed under the same heat. Data shows that high-quality low nitrogen variable frequency wall mounted boilers can achieve a combustion efficiency of over 95%, which is more energy-efficient than some ordinary wall mounted boilers (with a combustion efficiency of 88% -92%) and reduces gas waste at the root.

What is the difference in energy consumption between low nitrogen variable frequency wall mounted boilers and ordinary wall mounted boilers?

By comparing actual usage scenarios, we can more intuitively see the "gas saving advantage" of low nitrogen variable frequency wall mounted boilers.

Winter heating: Long term use saves 15% -30% gas

Winter is the peak period for gas consumption of wall mounted boilers. Taking a 100 square meter residential building as an example, in winter in North China (outdoor temperature -5 ℃ to 5 ℃), the daily gas consumption of a regular frequency wall mounted boiler is about 8-12 cubic meters; The low nitrogen variable frequency wall mounted boiler can reduce daily consumption to 6-9 cubic meters by adjusting power according to demand. A heating season (calculated based on 120 days) can save 120-360 cubic meters of gas, which can save hundreds of yuan in costs at current gas prices.

Daily hot water: avoid "standby energy consumption" and save on usage as needed

When using hot water in daily life, ordinary wall mounted boilers need to be frequently started and stopped to maintain the temperature of the water tank. Even if not in use, they may consume gas due to "standby insulation"; Low nitrogen variable frequency wall mounted boilers can adjust their insulation power according to the frequency of hot water usage, and even automatically enter a low-power state when not in use for a long time. The monthly gas consumption for hot water is 20% -25% less than that of ordinary wall mounted boilers.

Three key factors affecting the "gas consumption" of low nitrogen variable frequency wall mounted boilers

However, the actual energy consumption of low nitrogen variable frequency wall mounted boilers is not fixed and may be affected by the following factors. If these factors are ignored, the "gas saving advantage" may be compromised.

House insulation conditions: good insulation, low gas consumption

Building insulation is the "foundation": if the exterior walls are not insulated, the windows are made of single-layer glass, and there is air leakage in the door seams, the indoor heat will quickly dissipate. Even a low nitrogen variable frequency wall mounted boiler needs to operate continuously at high power to maintain temperature, which will naturally consume more gas. On the contrary, houses with good insulation (such as exterior wall insulation, double-layer insulated glass, sealed doors and windows) have slow heat loss, and wall mounted boilers only need to operate at low power, which can maximize the advantages of gas saving.

Usage habit: Set correctly to further save gas

Many users' usage habits indirectly increase gas consumption, such as setting the heating temperature too high (such as above 25 ℃), frequently opening and closing doors and windows, or opening windows for ventilation for a long time; Repeatedly turning on and off the faucet while using hot water leads to frequent start-up of the wall mounted boiler. In fact, setting the heating temperature between 18-22 ℃ in winter is the most comfortable and energy-saving. When using hot water, try to maintain a stable water flow. These small habits can make low nitrogen variable frequency wall mounted boilers more fuel-efficient.

Equipment maintenance: Regular maintenance to maintain high efficiency

If the low nitrogen variable frequency wall mounted boiler is not maintained for a long time, problems such as carbon deposition, heat exchanger scaling, and fan dust accumulation may occur, leading to a decrease in combustion efficiency - insufficient gas combustion not only results in excessive emissions, but also consumes more gas. It is recommended to have professional personnel clean the heat exchanger, check the fan and burner before heating each year, so that the equipment can always operate efficiently and avoid gas consumption problems caused by "equipment aging".

Four practical techniques for saving gas in low nitrogen variable frequency wall mounted boilers

In addition to relying on the technology of the equipment itself, mastering the following techniques can make low nitrogen variable frequency wall mounted boilers more energy-efficient:

Set temperature in different time periods: set 18-22 ℃ during the day when there are people at home, and lower it to 15-16 ℃ at night or when going out, to avoid high temperature operation throughout the day;

Prioritize the use of centralized water: for example, concentrating the water demand for laundry, vegetable washing, bathing, etc. at the same time to reduce the number of wall mounted boiler startups;

Used in conjunction with a temperature controller: Installing an intelligent temperature controller can accurately control the temperature of each room, avoiding energy waste caused by "local overheating";

Choose a suitable installation location: The wall mounted boiler should be installed in a well ventilated area away from heat sources to avoid affecting heat dissipation efficiency due to high ambient temperatures or poor ventilation.

Overall, low nitrogen variable frequency wall mounted boilers not only do not consume gas, but are also more energy-efficient than ordinary wall mounted boilers due to their variable frequency technology and efficient combustion design. Long term use can significantly reduce gas costs. However, its gas saving effect needs to be combined with building insulation, usage habits, and equipment maintenance in order to be fully utilized. If you are considering replacing the wall mounted boiler, the low nitrogen variable frequency version can meet environmental requirements while also considering energy saving, making it a more cost-effective choice.