Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Posted to alt.home.repair
external usenet poster
 
Posts: 156
Default Elec Question-Stove, uwave 220/110V

A friend of mine asked me a question I didn't know the answer to, so I
told her I'd ask you guys.

She has a stove-oven/microwave combination. She is going to get a new
stove/oven and a microwave but the microwave will be separate. Currently
(heh) she has just the 220V outlet for the stove. Can she take one leg of
the 224V circuit and run an outlet for the microwave? Her reasoning is
that she should be able to since it was done before, just inside the
stove.

What say those more knowledgeable?

--
charles
  #2   Report Post  
Posted to alt.home.repair
external usenet poster
 
Posts: 1,563
Default Elec Question-Stove, uwave 220/110V

Don't know about those more knowledgeable, but I say NO. Before ,the
microwave was integral to the stove, and U.L. approved as a unit. It was
also probably fused inside the stove as well . In any event she'd now need
to run a dedicated circuit for the microwave



"Charles Bishop" wrote in message
...
A friend of mine asked me a question I didn't know the answer to, so I
told her I'd ask you guys.

She has a stove-oven/microwave combination. She is going to get a new
stove/oven and a microwave but the microwave will be separate. Currently
(heh) she has just the 220V outlet for the stove. Can she take one leg of
the 224V circuit and run an outlet for the microwave? Her reasoning is
that she should be able to since it was done before, just inside the
stove.

What say those more knowledgeable?

--
charles



  #3   Report Post  
Posted to alt.home.repair
external usenet poster
 
Posts: 129
Default Elec Question-Stove, uwave 220/110V

Charles Bishop wrote:
A friend of mine asked me a question I didn't know the answer to, so I
told her I'd ask you guys.

She has a stove-oven/microwave combination. She is going to get a new
stove/oven and a microwave but the microwave will be separate. Currently
(heh) she has just the 220V outlet for the stove. Can she take one leg of
the 224V circuit and run an outlet for the microwave? Her reasoning is
that she should be able to since it was done before, just inside the
stove.

What say those more knowledgeable?


NO. The stove breaker would allow 40 or 50 Amps before it trips. Wiring
for the microwave would only be 20A or even 15A. An overload on the
microwave could cause a fire.
I am pretty sure a tap off is not allowed even if you were to add a
smaller breaker after the stove outlet. Also some older stove outlets do
not have the neutral wire that would be needed for the 120V.

Kevin



  #4   Report Post  
Posted to alt.home.repair
external usenet poster
 
Posts: 454
Default Elec Question-Stove, uwave 220/110V

Charles Bishop wrote:

A friend of mine asked me a question I didn't know the answer to, so I
told her I'd ask you guys.

She has a stove-oven/microwave combination. She is going to get a new
stove/oven and a microwave but the microwave will be separate. Currently
(heh) she has just the 220V outlet for the stove. Can she take one leg of
the 224V circuit and run an outlet for the microwave? Her reasoning is
that she should be able to since it was done before, just inside the
stove.

What say those more knowledgeable?

Not a good idea.

Run a separate 20 amp 12 gauge line from a breaker serving only the
microwave.
  #5   Report Post  
Posted to alt.home.repair
external usenet poster
 
Posts: 856
Default Elec Question-Stove, uwave 220/110V

According to jJim McLaughlin :
Charles Bishop wrote:

A friend of mine asked me a question I didn't know the answer to, so I
told her I'd ask you guys.

She has a stove-oven/microwave combination. She is going to get a new
stove/oven and a microwave but the microwave will be separate. Currently
(heh) she has just the 220V outlet for the stove. Can she take one leg of
the 224V circuit and run an outlet for the microwave? Her reasoning is
that she should be able to since it was done before, just inside the
stove.

What say those more knowledgeable?

Not a good idea.

Run a separate 20 amp 12 gauge line from a breaker serving only the
microwave.


Or see if the new stove has a 120V outlet on it that's rated high
enough for the microwave (check the instructions). Stoves always
used to have one, but auxiliary outlets are a lot rarer these days
(if not non-existant).

Even if it does, she might consider the cord over the top of
the stove objectionable anyway.

Running another circuit is the best way. Electrical codes
forbid the use of 120V and 240V devices on the same circuit
_except_ when the 240V device has a UL/CSA approved 120V outlet
on it. While the codes will permit turning a four wire
240V/120V stove circuit into a feed to a subpanel (with its own breakers)
to supply both 240V and 120V, that will NOT be permissible
with an old style 3 wire stove feed, and probably not with
4 wire unless the circuit ampacity is enough for _both_ the
stove and microwave circuits simultaneously at full. You
might get away with a 4 wire 60A feeding a breakered-for
40A stove and breakered-for 15A microwave circuit, but 60A
stove circuits are rather rare - the more normal 40A stove
circuits for 40A stoves aren't enough.

In Canada, builtin microwaves have to have their own
dedicated circuits anyway. That may be true now in the US
as well.
--
Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.


  #6   Report Post  
Posted to alt.home.repair
external usenet poster
 
Posts: 1,934
Default Elec Question-Stove, uwave 220/110V


"Charles Bishop" wrote in message
...
A friend of mine asked me a question I didn't know the answer to, so I
told her I'd ask you guys.

She has a stove-oven/microwave combination. She is going to get a new
stove/oven and a microwave but the microwave will be separate. Currently
(heh) she has just the 220V outlet for the stove. Can she take one leg of
the 224V circuit and run an outlet for the microwave? Her reasoning is
that she should be able to since it was done before, just inside the
stove.

What say those more knowledgeable?


No. The microwave must be on a 120 volt 15 or 20 amp circuit depending on
the unit's nameplate rating. I am familiar with these types of changeouts
because those combo units were installed in quite a few townhouses in my
area that I service. In most cases I have found that there already is a 120
volt 20 amp circuit wire in the wall above the stove. I surmised that the
electricians who wired these units were told to wire for a hood fan or a
microwave and installed the wiring for such during their rough-in. You
might want to investigate that.

When my customers change from the combo stove/microwave to a separate stove
with a overhead microwave, they usually have to get some overhead cabinet
work done. The new microwave is supported by a wall bracket and by two long
bolts that come through the shelf inside of the top cabinet. In the cases
that I have seen there is no top cabinet, just a fascia board that matches
the cabinets. Your friend may have a similar situation.

Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Elec Shower Question . Stuart B UK diy 3 March 21st 07 01:06 PM
A countertop oven (Jetstream) 110V 60Hz versus 110V 50Hz - problems? [email protected] Home Repair 2 November 12th 06 03:18 AM
Elec Question Don Dando Woodworking 3 March 18th 06 04:10 PM
Repairing Goldstar 1.2 cu.ft uwave oven Engineer Electronics Repair 4 December 30th 05 03:52 AM
Elec. subpanel question Martin Home Repair 7 June 9th 05 08:26 PM


All times are GMT +1. The time now is 09:46 PM.

Powered by vBulletin® Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.
Copyright 2004-2023 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"