diagnostic radiation
EM (or emergency heat) can be used if you have a problem with your other heat source such as a heat pump. In most cases, you will not need this but what it does is bi-passes the primary heat source and allows your secondary heat source (normally your furnace) to become the primary.
False
Manufactured Boards are man-made boards and are made by applying heat and pressure.The boards are made up of layers which are glued together and compressed with a huge amount of heat and pressure. Manufactured boards are made up of layers which are made of little chips of wood glued together.KINDS OF MANUFACTURED BOARD:PlywoodMDFBlock BoardChipboardWafer BoardHard Board
Sure, ductwork only carries hot air from the source to the living space. It does not matter what the source is.
Any heat source, whether man-made or natural.
what is man-made light
You do not found C.F.L. bulb in nature as such. So it is an artificial or man made source of light. It consumes very less energy. As it does not gives out heat.
A candle is a natural light source because it is derived from natural materials such as wax and a wick.
The heat source for a toaster is typically electrical coils made of nichrome wire. When electricity passes through these coils, they heat up and generate the heat needed to toast the bread.
This is true, and also for heating the earth's surface and the oceans. The only other source is the heat from the centre of the earth. Man-made activities are small by comparison.
diagnostic radiation
the sun is our source of heat
plastic is a bad conductor of heat because it is made up of different man made material's.
Wood is made into an energy source through a process called combustion, where it is burned to release heat energy. The heat can then be used to generate electricity or heat buildings. Wood can also be converted into biofuels such as wood pellets or wood chips to be used as a renewable energy source.
Yes the sun is a source of heat.
Machines, Radioactivity Electricity