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.
Heat pump is more efficient. If you use electric heaters, 1 joule of electric energy will produce 1 joule of heat energy. If you use heat pumps, 1 joule of electric energy can pump several joules - perhaps up to 5 or 6, depending on the outside temperature, and the efficiency of the heat pump - of heat, from the outside to the inside.
Yes, heat and cold flow between objects due to the difference in temperature. Heat will flow from the hotter object to the colder object until thermal equilibrium is reached, leading to the transfer of energy.
Sun is the primary source of heat here in the Earth. As time moves on, human developed new sources of heat and light. Some of it are the torches, lamps, candles and others
Heat transfers to, and from, any object, not just metal object. Metals in general are very good conductors of heat; as a result, you might feel the temperature more easily when you touch a metal object. If you get burned more easily by a metal object than by a wooden object, for example, both at the same temperature, this is a direct result of heat conduction.
The statement is incorrect because heat is a form of energy, while temperature is a measure of the average kinetic energy of particles. The amount of heat contained in an object depends on its mass and temperature, not just its temperature alone. Two objects at different temperatures can contain the same amount of heat if the object with the lower temperature has a higher mass.
silver absorbs heat just like black objects.
just google the angry birds the parabolic 1st edition on google for the problem
Not really. Baseboard heaters are rated in watts. W = Amps x Volts has not changed since electricity came into being. What has changed are some of the designs of the baseboard heaters. Some heat oil in the baseboard heaters, which dissipate the heat out at a more even heat. On the market now are new types of thrermostats that pulse the baseboard heaters for a more regulated heat rather just turning them on when the thermostat calls for heat and turns them off when the thermostat is satisfied.
Coal or wood fired boilers or just heat water on the stove. A wood stove most likely.
Heat pump is more efficient. If you use electric heaters, 1 joule of electric energy will produce 1 joule of heat energy. If you use heat pumps, 1 joule of electric energy can pump several joules - perhaps up to 5 or 6, depending on the outside temperature, and the efficiency of the heat pump - of heat, from the outside to the inside.
Yes, heat and cold flow between objects due to the difference in temperature. Heat will flow from the hotter object to the colder object until thermal equilibrium is reached, leading to the transfer of energy.
You just need to efficiently arrange several different mirror pieces so that you can gather most of the sun light available and redirect it to a proper container filled with salt water. And then you will probably want to use the heated to water to produce electric energy. So what you are going to need is just an old-fashioned steam turbine.
Because of the füçkīñg
You're far better off going with a generic. While they are high quality, they're basically just heat generation units.
Parabolic Reflector, but that's really just a type of a RADAR.
Sun is the primary source of heat here in the Earth. As time moves on, human developed new sources of heat and light. Some of it are the torches, lamps, candles and others
That depends, conduction does but radiation travels in waves so just goes through anything