| [GMCnet] Microwave recomendation [message #276748] |
Sun, 26 April 2015 11:56  |
Daniel DeLuca
Messages: 120
Registered: June 2014
Karma: 0
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Hello,
My wife and mother in law are insisting that I replace the original microwave oven with something more modern for “safety.” (I disagree, but not a battle worth fighting) Mine is mounted underneath the cooktop. Any recommendations for a new microwave that will fit under there without too much modifications? Is it necessary I get an “RV” microwave or will any microwave of my choice do? Does anyone one want a working original in great condition?
Dan
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| Re: [GMCnet] Microwave recomendation [message #276762 is a reply to message #276748] |
Sun, 26 April 2015 16:28  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I'm not aware of the difference between an 'rv' microwave and one off the shelf at WalMart. I suspect it's likely simply a zero added to the price. My coach has an older Panasonic fitted under the cabinets and it works just fine on generator or shore power.
If you want to simply end the 'safety' argument, call the local radio station and ask them who does their antenna RF survey measurements. That person will have one of the RF survey meters - Halladay being the most popular. Borrow it, cook something in the microwave, and wave the Hallady probe around it. It will measure leakage, which will be well under the allowed level unless the door is bent or there are dings and holes in the oven cavity. You will then know whether the oven meets the safety levels or not. I do not assess the Domestic Discord level(s) this testing may produce.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Microwave recomendation [message #276768 is a reply to message #276762] |
Sun, 26 April 2015 17:50 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Johnny,
The best microwave/convection oven that I have found and bought was the Sharp Model 820BK, but it is no longer available at this time. Sharp does make a R-820JS and it is a higher priced unit. Panasonic offers a model NN-SD797S at about $170 and Cuisinart CMW-200 is available at Best Buy. These are the higher priced items as they can heat up stuff and bake allowing you to get rid of the stove/oven setup. Of cource you can always go for a cheap microwave it that is all you want. You will need a cooktop and those induction ones that you can buy as seen on TV do work will although they require special pots and pans to work.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
> On Apr 26, 2015, at 5:28 PM, Johnny Bridges wrote:
>
> I'm not aware of the difference between an 'rv' microwave and one off the shelf at WalMart. I suspect it's likely simply a zero added to the price.
> My coach has an older Panasonic fitted under the cabinets and it works just fine on generator or shore power.
> If you want to simply end the 'safety' argument, call the local radio station and ask them who does their antenna RF survey measurements. That person
> will have one of the RF survey meters - Halladay being the most popular. Borrow it, cook something in the microwave, and wave the Hallady probe
> around it. It will measure leakage, which will be well under the allowed level unless the door is bent or there are dings and holes in the oven
> cavity. You will then know whether the oven meets the safety levels or not. I do not assess the Domestic Discord level(s) this testing may produce.
>
> --johnny
> --
> '76 23' transmode Norris upfit
> Braselton, Ga.
>
> "Sometimes I wonder what tomorrow's gonna bring when I think about my dirty life and times" --Warren Zevon
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Microwave recomendation [message #276772 is a reply to message #276748] |
Sun, 26 April 2015 18:47 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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We have a Cusinard convection/MW. I don't know the model number but I mounted it at eye level in the hallway. When we got The Lady, it had a small MW mounted under the kitchen counter. We couldn't see it and it was a pain to use down that low so we sacrificed a drawer in the hallway. The unit was too deep but there is about 4' behind the back wall and I just cut it out and the unit fit in nicely and is flush with the other hallway cabinets.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Microwave recomendation [message #276792 is a reply to message #276748] |
Mon, 27 April 2015 02:06 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Dan,
I separated the oven from the cooktop and installed a Sharp combination microwave, convection oven, and grill.
http://www.gmcmhphotos.com/photos/galley-pull-out-drawers/p39534-pull-out-drawers.html
The round plate over what was the oven thermostat is for sink that has had a tap removed.
Here's a spreadsheet I put together to compare what was available at the time; I have no idea if they still are.
http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p53464-convection-2f-microwave-2f-grill-comparison.html
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Daniel DeLuca
Sent: Monday, April 27, 2015 2:57 AM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Microwave recomendation
Hello,
My wife and mother in law are insisting that I replace the original microwave oven with something more modern for "safety." (I
disagree, but not a battle worth fighting) Mine is mounted underneath the cooktop. Any recommendations for a new microwave that
will fit under there without too much modifications? Is it necessary I get an "RV" microwave or will any microwave of my choice do?
Does anyone one want a working original in great condition?
Dan
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Microwave recomendation [message #276794 is a reply to message #276790] |
Mon, 27 April 2015 06:36 |
Daniel DeLuca
Messages: 120
Registered: June 2014
Karma: 0
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Senior Member |
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Bob,
I was looking at the inverter microwaves, could you tell me what size or model number you installed?
For the curious, inverter is a panasonic feature that lowers the power of the microwave. So when you defrost something it is actually lower powered and not on 50% of the time and off 50% of the time.
Dan
> On Apr 26, 2015, at 11:46 PM, rallymaster@juno.com wrote:
>
>
> You oughta know by now, Bob, somebody always wants pix and/or more info.
> I'd like some. Not familiar with inverter microwave, whatzit?
> RonC
>
> On Sun, 26 Apr 2015 22:11:28 -0500 Bob Dunahugh
> writes:
>> We have a 78 Royale that came originally with a microwave under the
>> cook top. Last fall I installed a Panasonic 110 volt Invertor
>> microwave. The invertor microwaves do a much better job. The width
>> was perfect. And was 3 inches shorter. So I made a slide out cutting
>> board above it. If someone wants a photo, or more details.. Let me
>> know. Bob Dunahugh Member GMCMI.
>>
>>
>
> Ron & Linda Clark
> North Plains, ORYGUN
> 78 Eleganza II
>
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| Re: [GMCnet] Microwave recomendation [message #276798 is a reply to message #276748] |
Mon, 27 April 2015 07:20 |
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SeanKidd
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
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Senior Member |
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What we did...over the range Samsung, built a plenum behind the unit for the exhaust to original vent location, also had to shorten adjacent upper cabinet by a few inches...sorry, no link, link button not happy with iOS...
Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
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| Re: [GMCnet] Inverter Microwave caution [message #276863 is a reply to message #276811] |
Mon, 27 April 2015 20:22 |
Jim Miller
Messages: 501
Registered: March 2008
Karma: 10
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Senior Member |
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Many inverters do not do well with high inrush loads and their protection circuitry will trip them offline at the instant the load is applied. Inverter control circuitry looks not only at the input voltage, input current and output load but also at the rate of change of current vs. time on the output of the inverter. A load with a high inrush current looks like a direct short circuit for an instant and in many cases the resultant dI/dt value can be enough to trip the inverter. A cheap inverter will have cheap control circuitry which may be too aggressive in shutting the unit down under applied load.
Two primary sources of large inrush loads in the GMC environment are compressor motors (in A/C units and traditional direct-expansion fridges) and the magnetron in microwave ovens. One may find that a 1:1 isolation transformer placed between the inverter and the load will have enough energy stored in the magnetic flux around the transformer core to help supply the inrush needs - however you’d have to put up with the buzzing of the transformer as it knocked the edges off the square waves coming out of the inverter.
I think people are often misguided in trying to run large loads off of inverters. The P=IE law of electricity holds with inverters as it does with everything else. If you have a load drawing 10 amps at 120V on the output of the inverter (like a 1000 watt microwave) then you will be drawing at LEAST 100 amps at 12V from the battery…not counting inverter losses which make the draw even greater. The cables supplying the inverter must not only be sized to carry 100 amps without dangerous temperature rise but they must also be large enough to reduce I2R resistance losses which can be substantial at that amount of current. The voltage drop at the inverter’s input terminals caused by the I2R losses in the battery cables also contribute to the inverter tripping offline.
--Jim "saving the lives of Onans...one unit at a time" Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
> On Apr 27, 2015, at 10:52 AM, Matt Colie wrote:
>
> It came up once here and I have hit it twice elsewhere (boats).
>
> There is a problem well known to digital data people called "aliasing". This is when a signal and the evaluation system are running at nearly the
> same speed (simplification). When this happens a switching power supply that is powered from an inverter can just quit or go nuts....
>
> One of these cases was a good microwave on a CCV (Chinese) version of a modified square (I refuse to call it sine) inverter. That was no real
> surprise, but the other was a very good version of a pure sine inverter. An oscilloscope showed it to be pretty close to true, but the two still did
> not want to dance.
>
> Matt
> --
> Matt & Mary Colie - Members GMCMI, GMCES
> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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| Re: [GMCnet] Microwave recomendation [message #276869 is a reply to message #276861] |
Mon, 27 April 2015 22:31 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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""I've used an inverter to power our microwave. Worked fine. Bob
""
Bob. I use an inverter to power my GE microwave and although it works, it is noticeably slower. It is not a true sinewave inverter.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Microwave recomendation [message #276879 is a reply to message #276861] |
Tue, 28 April 2015 00:17 |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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The original question was. Microwave recomendation. As to how you power a MW. Shoe power, and a generator are tried, and true. As to power from a 12 volt inverter. Pay the price for a big, and a good quality one to power anything you like. Problem solved. Bob Dunahugh
I've used an inverter to power our microwave. Worked fine. Bob
Gerald is correct. But that applies to ALL microwaves. The WATT rating shown is the output of the unit. Not the watts required to run them. That input will always be higher. But not much. Bob Dunahugh
It's called. The Genius Sensor 1250 WATT. Number F10015X00AP 21 5/8 wide, by 11 7/8 tall. Linda liked it so much. She had me go get another one for the house the next day. She was happy. That's all that I needed to know. Bob
We have a 78 Royale that came originally with a microwave under the cook top. Last fall I installed a Panasonic 110 volt Inverter microwave. The inverter microwaves do a much better job. The width was perfect. And was 3 inches shorter. So I made a slide out cutting board above it. If someone wants a photo, or more details.. Let me know. Bob Dunahugh Member GMCMI.
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