Electric heater

[Soccerdude240]

Hey everyone! I am trying to build a small electric heater as a DIY project. My only experience in electronics is a digital electronics class I took...other than that, I'm new to just about all of this stuff, but I can pick up on things rather quickly. Does anyone have any good resources that you think might help me get started?


Thanks in advance!!

[berkeman]

Hey everyone! I am trying to build a small electric heater as a DIY project. My only experience in electronics is a digital electronics class I took...other than that, I'm new to just about all of this stuff, but I can pick up on things rather quickly. Does anyone have any good resources that you think might help me get started?


Thanks in advance!!

Welcome to the PF.

Do you mean like a heating pad? That could be a fairly safe first project, as long as you use a packaged power source that already has safety approvals (like UL). A moderate-size wall transformer could be your power source -- you can get them from Radio Shack and similar stores.

If you mean like a moderate-power space heater powered by the AC Mains (110Vrms, etc.), that is beyond your abilities at the moment. You have plenty to learn before tackling an AC Mains based project, which includes using safety agency approved design practices and construction techniques.

What do you want to heat?

[Soccerdude240]

I'm just looking for some projects to get me familiar with circuitry and electricity and general. I am working up to building some handlebar warmers for my bike (which will be a much tougher challenge) so I'm starting small. Any other resources you might have wold be greatly appreciated!!!

[berkeman]

I'm just looking for some projects to get me familiar with circuitry and electricity and general. I am working up to building some handlebar warmers for my bike (which will be a much tougher challenge) so I'm starting small. Any other resources you might have wold be greatly appreciated!!!

Nichrome wire is typically used as the heating element. Here is an intro article, with links out to other information:

http://en.wikipedia.org/wiki/Heating_element

.

[dlgoff]

I'm just looking for some projects to get me familiar with circuitry and electricity and general. I am working up to building some handlebar warmers for my bike (which will be a much tougher challenge) so I'm starting small. Any other resources you might have wold be greatly appreciated!!!
As berkeman says, "Nichrome wire is typically used...". But as a learning project, you could make a heater with the proper (ohms and wattage) resistors. Here is a heater made this way for controlling dew on telescopes. It's designed to operate on 12 volts dc.
http://www.dewbuster.com/heaters/heaters.html

When you get to your handlebar warmers, consideration as to your power source becomes important; weight/size determined by how much current you need.