installing a bathroom heater (Step1)

pstock · 09-21-2009, 03:23 PM

at the risk of ridicule, let me ask a few questions about installing a basic bathroom heater.

1. is it insane for a non-electrician to do anything with 220v-240v power? I mean, I don't mind learning a few shocking lessons on 110v but can't 220/40v kill you?

For instance (and I think I am probably answering my own question) before I ask about hooking this thing up,
can I use a regular multimeter to test the presence of current on the line before I start hooking things up?
120v, no problem. I set the thing to 200v, stick the black and red in the slot and presto, it shows me 118v.
but I am really nervous doing the same thing with a 240v circuit.

thoughts?

Peter

Code05 · 09-21-2009, 03:36 PM

Quote:

Originally Posted by pstock

at the risk of ridicule, let me ask a few questions about installing a basic bathroom heater.

1. is it insane for a non-electrician to do anything with 220v-240v power? I mean, I don't mind learning a few shocking lessons on 110v but can't 220/40v kill you?

For instance (and I think I am probably answering my own question) before I ask about hooking this thing up,
can I use a regular multimeter to test the presence of current on the line before I start hooking things up?
120v, no problem. I set the thing to 200v, stick the black and red in the slot and presto, it shows me 118v.
but I am really nervous doing the same thing with a 240v circuit.

thoughts?

Peter

Installing 240 is really no more dangerous than 120, if done safely. what kind of meter do you have. Does it say CAT III anywhere on it?

jbfan · 09-21-2009, 05:05 PM

120 volts kill you just as dead as 240 volts.
Just make sure the breaker is off, and you run the correct wire for the heaters.