No, radiant heaters and electric heaters do not consume oxygen. Unlike combustion-based heaters such as gas or kerosene heaters, radiant and electric heaters do not produce any emissions or byproducts that would consume oxygen in the room. This makes them a safer option for indoor use, as they do not deplete the oxygen levels in the space. **

The efficiency of approximately 15-year-old oil heaters can vary depending on their maintenance and usage. Generally, older oil heaters may have an efficiency rating of around 60-70%, meaning that 30-40% of the energy from the oil is lost as waste heat. This is lower than the efficiency of newer models, which can reach up to 90% efficiency. It's important to have older oil heaters regularly serviced and maintained to ensure they are operating as efficiently as possible. Consider upgrading to a newer, more efficient model for better energy savings. **

Night storage heaters do not directly impact air quality, as they do not produce any emissions or pollutants. However, poor air quality can be a concern in homes with night storage heaters if they are not properly maintained or if the insulation in the home is inadequate. Dust and other allergens can accumulate in the heating system and be circulated throughout the home, potentially impacting air quality. Regular maintenance and proper insulation can help mitigate these issues and ensure good air quality in homes with night storage heaters. **

Infrared heaters can be a sensible alternative to night storage heaters for certain situations. Infrared heaters are more energy-efficient and provide instant heat, whereas night storage heaters require electricity to charge up during the day and release heat at night. However, night storage heaters can be more cost-effective for households with off-peak electricity tariffs. Ultimately, the choice between the two types of heaters depends on the specific needs and circumstances of the user. **

No, heaters do not consume water. Heaters are designed to heat the air or water using electricity, gas, or other fuel sources, but they do not consume water in the process. However, some heating systems may require water for their operation, such as boilers or hydronic heating systems, but the water is not consumed by the heater itself. Instead, it is used to transfer heat to the desired area. **

Heaters are not always grounded, but it is recommended for safety reasons. Grounding a heater helps to prevent electrical shocks and reduce the risk of fire. Grounding provides a path for electrical current to safely dissipate in the event of a malfunction. It is important to follow the manufacturer's instructions and local electrical codes when installing and grounding a heater. **

Air heaters themselves are not inherently harmful, as they are designed to provide warmth and comfort in indoor spaces. However, improper use or maintenance of air heaters can pose risks such as fire hazards, carbon monoxide poisoning, and burns. It is important to follow the manufacturer's instructions, keep the heater well-maintained, and ensure proper ventilation when using air heaters to minimize any potential risks. **

Yes, water heaters can potentially explode if certain safety measures are not followed. One common cause of water heater explosions is a buildup of pressure inside the tank, which can occur if the temperature and pressure relief valve is faulty or blocked. This can lead to a dangerous increase in pressure, causing the tank to rupture and potentially explode. It is important to regularly maintain and inspect water heaters to prevent such incidents. **