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Because they were not safe, so the balance of the risk against the need was big
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What is a heat air moves from baseboard heaters to the rest of a room in a process called?
Baseboard heaters depends on convection currents in air to move heat around a room.
Will parabolic heaters heat a room or just objects?
Generally, the dish heaters heat what is in front of them (often a person or persons). However, if you have a small room and close the door, it can heat the whole room. For instance, I turn the heater on at night and close the door in my bedroom. The entire room gets warm and cozy, but, once I step out of my room, the rest of the apartment is cold. The rest of my apartment is a large room that is not enclosed so the heater would never heat so large of a space. If I step out of the beam in my large room (say I was sitting on the couch in front of the TV), the rest of the room is a lot cooler.
Why room cannot cool when you open freezer but heated when you open microwave?
The room will cool if you open the freezer and leave it open.
Why do room heaters have polished reflector at the back of the heating element?
This protects the rest of the unit from heat. It's effectively an insulator.
Why are air conditioners fitted on the top while room heaters are kept on the floors?
Heat rises, whereas cold air sinks.
Why room heaters have polished surface?
room heaters have polished surface
How big or small are some room heaters for the house?
Heaters come in various sizes, depending on the size of room you need to heat. For large rooms, you may need to invest a bit more money. Home improvement stores have them and some department stores
Do candles that were in the microwave burn slower or faster than room temperature candles?
Candles that have just come out of the microwave will burn faster because the microwave has already burned it as it is, adding a flame will just continue the process. Whereas if it was room temperature you would have to start the whole process from the beginning.
To heat a room quickly some electric room heaters are provided with?
A fan.
What is a heat air moves from baseboard heaters to the rest of a room in a process called?
Baseboard heaters depends on convection currents in air to move heat around a room.
Why are room heaters kept in front of silver coated plates?
To reflect heat back into the room.
How cold is water with a betta fish in it if it is just sitting at room temperature no heaters or anything?
Room temperature.
What supplies do you need to bring for your dorm room?
You are likely to have very little room, so keep what you bring to a minimum. However, bring some office supplies, things to be comfortable (heating pad, lotion, kleenex, towels, mug), and so on. In my day, we also brought immersible heaters, but you may have access to a microwave.
What are the main uses for tube heaters?
Tube heaters can be used in many different environments and places that need to be heated. Tube heaters can be places in walls or flooring in order to keep a room warm.
What are the safest space heaters for use in a child's room?
Ceramic space heaters are intended for use in smaller spaces, like a single bedroom. They heat up quickly and cool down quickly when turned off. All space heaters generated heat and should never be left in the reach of small kids. Read the directions, use the heater only as instructed and never leave a child unattended when contact can cause burns.
Will parabolic heaters heat a room or just objects?
Generally, the dish heaters heat what is in front of them (often a person or persons). However, if you have a small room and close the door, it can heat the whole room. For instance, I turn the heater on at night and close the door in my bedroom. The entire room gets warm and cozy, but, once I step out of my room, the rest of the apartment is cold. The rest of my apartment is a large room that is not enclosed so the heater would never heat so large of a space. If I step out of the beam in my large room (say I was sitting on the couch in front of the TV), the rest of the room is a lot cooler.
Why electric heaters have mirror behind the heating coil?
To reflect the heat into the room.
