The modern colours are Brown = positive : Blue = negative : Yellow and green = earth.
A label.
copper?
It doesn't
An electric heater works by passing an electric current through a high resistance wire, causing it to heat up and produce heat through a process called Joule heating. The heat is then transferred to the surrounding air through convection, warming up the space.
In a typical electric spa heater setup, L1 and L2 are the two hot wires for a 240-volt system, and the ground wire provides safety. The blue wire marked "N" is likely intended as a neutral wire, but in a 240-volt system, a neutral is not always used; it may instead be a designation for a different function depending on the specific wiring configuration. It’s important to consult the manufacturer’s documentation or a qualified electrician to confirm the purpose of the blue wire in your specific setup.
Read the label. A gas heater will have three plumbing pipes connected.One is a gas supply. An electric heater will only have two plumbing pipes but it will have an electical conduit or electrical wire feed line.
They don't say specifically, but my guess is that they use a mineral oil is because it is cheap and non-toxic. There are also many synthetic diathermic heat transfer fluids that have better performance, but these are more expensive. Glycols are also used in some moderate temperature applications such as radiant heating systems in floors and walls, but I doubt they are used in something as hot as a space heater (the total power dissipated by a space heater may be less than a house radiant heating system, but the peak temperature of a space heater's internal electric heating wire is higher).
Nichrome wire s the usual material because i s cheap
To wire an electric baseboard heater, you need to connect it to a dedicated circuit breaker in your electrical panel using the appropriate gauge wire. Make sure to follow the manufacturer's instructions and local electrical codes for proper installation. It is recommended to hire a licensed electrician for this task to ensure safety and compliance.
An immersion electric heater usually uses nichrome wire as the heating element. Nichrome is highly resistive, and by applying a voltage, we can get it pretty hot. Nichrome is used as the heating element in toasters and on electric range elements as well as lots of other places.
An electric heater is an electric appliance that convert electrical energy in to heat. Working principle of an electric heater as per "Joule heating theory" When electric current passes through a resistor that electric energy convert to heat (best and simple example is a spring type heating element). When Voltage applied both end of a wire/spring type Resistance wire, voltage flow and this voltage help that wire to heat up and convert in to heat. A Resistance wire quality, length & thickness depend how many time heat spread and resist with that heat. K.watt/ Watt = Applied voltage x Ampere. Many quality and types of electric heating elements are there depend upon purpose of use. Few best heating elements known as Kanthal wire, Nicrome wire, Ureka wire, Super Kanthal, Silicon Carbide heating elements etc.
The most reliable source for an electric baseboard heater wiring diagram is the manufacturer's official website or the user manual that came with the heater. These sources provide accurate and detailed information on how to properly wire the heater for safe and efficient operation.