The best heater for you will depend on your specific needs and preferences. Consider factors such as the size of the space you need to heat, your budget, and whether you prefer a portable or fixed heater. Electric heaters are often a popular choice for their ease of use and efficiency, while propane heaters are a good option for outdoor spaces or areas without access to electricity. Ultimately, it's important to choose a heater that meets your heating requirements and fits within your budget. **

It is not recommended to leave a space heater running for 24 hours continuously due to safety concerns. Space heaters can pose a fire hazard if left unattended for long periods of time. It is best to use a space heater only when needed and to turn it off when not in use or when you are sleeping. Additionally, running a space heater for extended periods can also lead to higher energy consumption and increased electricity costs. **

Yes, it is dangerous to place cardboard on a running heater. Cardboard is flammable and can easily catch fire when exposed to high temperatures. Placing cardboard on a running heater can lead to a fire hazard, as the cardboard can ignite and cause a potentially dangerous situation. It is important to keep flammable materials away from heat sources to prevent accidents and ensure safety. **

The cheapest infrared heater/electric heater can vary depending on the brand, model, and features. However, some of the most affordable options include compact infrared space heaters or basic electric fan heaters. These types of heaters are often designed for small spaces and can be found at budget-friendly prices. It's important to consider the heating capacity, energy efficiency, and safety features when choosing a budget-friendly infrared or electric heater. **

When a heater is running, it can create a warm and cozy scent in the room. This smell is often described as a mix of dust burning off the heating elements and the release of any accumulated odors in the system. The room may also have a slightly dry or musty smell due to the circulation of air and the drying effect of the heat. Overall, the room may have a comforting and familiar scent that is associated with the warmth provided by the heater. **

When a heater is running, it can create a warm and cozy scent in the room. This smell is often described as a mix of dust burning off the heating elements and the circulation of warm air. The room may also have a slightly dry or musty odor due to the heat drying out the air. Overall, the smell of a room with a running heater can be comforting and reminiscent of a cozy winter day. **

Electricity only flows when the water heater is running when the water heater is equipped with an electric heating element. When the water heater is turned on, the electric heating element heats the water, causing the electricity to flow through the element and into the water. Once the water reaches the desired temperature, the heating element turns off, and the electricity stops flowing. This process ensures that electricity is only used when the water heater is actively heating water. **

When a heater is running, the room may smell slightly dusty or musty initially. This is because the heater is burning off any dust or debris that has accumulated while it was not in use. As the heater continues to run, the smell should dissipate and be replaced with a warm, comforting scent. If the smell persists or becomes stronger, it may be a sign that the heater needs maintenance or cleaning. **