Home |
Search |
Today's Posts |
|
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 | Display Modes |
#1
|
|||
|
|||
220V for 110V cooktop?
I just bought a Salton tabletop two element cooktop. Cute little thing and it runs off a regular 120Vac supply. I don't see any wattage rating for one 7.5 inch diameter and one 5.5 inch dia hit plate. The heat build-up is a kind of slow . Heat from the 7.5" plate barely keeps the veggie soup aboil in a pan. But I can live with that and the appliance is the ideal size and shape for a basement kitchen nook. Its a keeper. Only $25. Ok. I need just the technical explanation, not alarmists hysteria about blowing the world up. What will happen if I plug it into a 220Vac power supply instead, the desire being that I would like it to heat up faster and hotter? A cooktop is a resistance device and they don't make hot plates with different materials for a 110V plate that will melt or catch fire at 220V. The obvious limitation will likely be overloading the control (knob) mechanism causing it to overheat or to blow, therefore constituting a fire hazard. But what if I replace them with 220V controls? Will that work? I know that will void the appliance warranty (who cares at $25) and my house insurance if it causes an house fire. But I can also experiment by having it in the backyard where a fire. won't hurt anything. Back to the question. Will it work and what are the downsides? |
#2
|
|||
|
|||
220V for 110V cooktop?
According to PaPaPeng :
What will happen if I plug it into a 220Vac power supply instead, the desire being that I would like it to heat up faster and hotter? A cooktop is a resistance device and they don't make hot plates with different materials for a 110V plate that will melt or catch fire at 220V. The obvious limitation will likely be overloading the control (knob) mechanism causing it to overheat or to blow, therefore constituting a fire hazard. But what if I replace them with 220V controls? Will that work? I know that will void the appliance warranty (who cares at $25) and my house insurance if it causes an house fire. But I can also experiment by having it in the backyard where a fire. won't hurt anything. Back to the question. Will it work and what are the downsides? You'll probably burn out the elements. While the thermostat _may_ prevent it from being an immediate meltdown, driving double the rated amps through the elements will be very hard on them. -- Chris Lewis, Una confibula non set est It's not just anyone who gets a Starship Cruiser class named after them. |
#3
|
|||
|
|||
220V for 110V cooktop?
Years ago I was on an archeological dig in Israel. My razor was 120v and
the Israeli voltage is 240v. However, they deliberately were dropping the voltage to conserve energy so I figured my razor ought to be okay. It went up in a blue flash and smoked like crazy. I expect your cooktop will do the same. I have done exactly the opposite successfully; I had to make room in my circuit box, so I changed a seldom used 240v heating circuit to 120v. The heaters don't product much heat, but that just means they run more. |
#4
|
|||
|
|||
220V for 110V cooktop?
wrote:
...Doubling the voltage will square the heat output Wow... (1500)^2 = 2.25 megawatts. Nick |
#5
|
|||
|
|||
220V for 110V cooktop?
PaPaPeng wrote:
I just bought a Salton tabletop two element cooktop. Cute little thing and it runs off a regular 120Vac supply. I don't see any wattage rating for one 7.5 inch diameter and one 5.5 inch dia hit plate. The heat build-up is a kind of slow . Heat from the 7.5" plate barely keeps the veggie soup aboil in a pan. But I can live with that and the appliance is the ideal size and shape for a basement kitchen nook. Its a keeper. Only $25. Ok. I need just the technical explanation, not alarmists hysteria about blowing the world up. No you won't blow up the world, but you may burn down yours. Where did you get the information that lead you to "they don't make hot plates with different materials for a 110V plate that will melt or catch fire at 220V." What will happen if I plug it into a 220Vac power supply instead, the desire being that I would like it to heat up faster and hotter? A cooktop is a resistance device and they don't make hot plates with different materials for a 110V plate that will melt or catch fire at 220V. The obvious limitation will likely be overloading the control (knob) mechanism causing it to overheat or to blow, therefore constituting a fire hazard. But what if I replace them with 220V controls? Will that work? I know that will void the appliance warranty (who cares at $25) and my house insurance if it causes an house fire. But I can also experiment by having it in the backyard where a fire. won't hurt anything. Back to the question. Will it work and what are the downsides? -- Joseph Meehan Dia duit |
#6
|
|||
|
|||
220V for 110V cooktop?
"PaPaPeng" wrote in message What will happen if I plug it into a 220Vac power supply instead, the desire being that I would like it to heat up faster and hotter? A cooktop is a resistance device and they don't make hot plates with different materials for a 110V plate that will melt or catch fire at 220V. Element will be hottest just before they burn out. |
#7
|
|||
|
|||
220V for 110V cooktop?
"PaPaPeng" wrote in message
What will happen if I plug it into a 220Vac power supply instead... Smoke. How about a series diode or a 240 V lamp dimmer? Or put both plates in series, if the powers are different. Nick |
#8
|
|||
|
|||
220V for 110V cooktop?
|
#9
|
|||
|
|||
220V for 110V cooktop?
In article , "Toller" wrote:
Years ago I was on an archeological dig in Israel. My razor was 120v and the Israeli voltage is 240v. However, they deliberately were dropping the voltage to conserve energy so I figured my razor ought to be okay. It went up in a blue flash and smoked like crazy. An entirely predictable result, of course. And you wonder why I give you grief when you try to give people electrical advice. -- Regards, Doug Miller (alphageek at milmac dot com) It's time to throw all their damned tea in the harbor again. |
#10
|
|||
|
|||
220V for 110V cooktop?
According to :
"PaPaPeng" wrote in message What will happen if I plug it into a 220Vac power supply instead... Smoke. How about a series diode or a 240 V lamp dimmer? Or put both plates in series, if the powers are different. If the element power consumption is different, if you put them in series, the higher power one will produce _less_ heat than with 120V just before the other element burns out. If you tried this stunt with a lamp dimmer (even a 240V one), you'd blow it up too. The dimmer would have to be rated for something on the order of 4000 watts. Lamp dimmers are usually 600W, occasionally 1Kw. Dimmers don't adjust the voltage, they adjust how much of the sine wave is "omitted" from the feed - more or less determining duty cycle. Dimmers lop out the lower voltage part of the curve, so, the elements would still be seeing 240V. A series diode would almost work, except that it only cuts the power by one half, you need it reduced by three quarters. -- Chris Lewis, Una confibula non set est It's not just anyone who gets a Starship Cruiser class named after them. |
#11
|
|||
|
|||
220V for 110V cooktop?
"Doug Miller" wrote in message ... In article , "Toller" wrote: Years ago I was on an archeological dig in Israel. My razor was 120v and the Israeli voltage is 240v. However, they deliberately were dropping the voltage to conserve energy so I figured my razor ought to be okay. It went up in a blue flash and smoked like crazy. An entirely predictable result, of course. And you wonder why I give you grief when you try to give people electrical advice. I was nineteen and it was try it or not shave; I knew it probably wouldn't work, but the potential benefit was worth the risk. Since you probably have never had to shave, you cannot appreciate the situation. I don't wonder why you give me a hard time; its because you are AlphaTurd! |
#12
|
|||
|
|||
220V for 110V cooktop?
On 2005-11-03, Chris Lewis wrote:
A series diode would almost work, except that it only cuts the power by one half, you need it reduced by three quarters. The whole point was to get more power from the hot plate, without burning it up. So you don't want to reduce the 240V power by a full 3/4, reducing it by 1/2 might be the ticket. Of course, doubling the power would probably still melt the sucker. Cheers, Wayne |
#13
|
|||
|
|||
220V for 110V cooktop?
|
#14
|
|||
|
|||
220V for 110V cooktop?
In article , "Toller" wrote:
"Doug Miller" wrote in message m... In article , "Toller" wrote: Years ago I was on an archeological dig in Israel. My razor was 120v and the Israeli voltage is 240v. However, they deliberately were dropping the voltage to conserve energy so I figured my razor ought to be okay. It went up in a blue flash and smoked like crazy. An entirely predictable result, of course. And you wonder why I give you grief when you try to give people electrical advice. I was nineteen and it was try it or not shave; I knew it probably wouldn't work, but the potential benefit was worth the risk. First you say you figured it ought to be okay. Now you say you knew it probably wouldn't work. Which is the truth? Since you probably have never had to shave, you cannot appreciate the situation. I see you still haven't gotten past junior high school insults. You get that one out of a book, Wade, or did you make it up all on your own? I don't wonder why you give me a hard time; its because you are AlphaTurd! No, I give you a hard time because the advice you give is dangerous. You don't understand enough about electricity to handle it safely -- as your incident with the razor proves -- and yet you persist in trying to tell other people how to handle it. BTW -- I always figured you were lying when you claimed you killfiled me. Thanks for proving I was right. -- Regards, Doug Miller (alphageek at milmac dot com) It's time to throw all their damned tea in the harbor again. |
#15
|
|||
|
|||
220V for 110V cooktop?
Yeh, like that horrible dryer example where I suggested following the manufacturer's recommendation and you said I was wrong and dangerous. ooooh BTW -- I always figured you were lying when you claimed you killfiled me. Thanks for proving I was right. A couple days ago I deleted all the blocks figuring they were probably all gone and there was no reason to check against them. Beats me how you have survived. Bye |
#16
|
|||
|
|||
220V for 110V cooktop?
In article , "Toller" wrote:
Yeh, like that horrible dryer example where I suggested following the manufacturer's recommendation and you said I was wrong and dangerous. ooooh You *still* don't have it right, Wade. It wasn't a dryer, and you didn't suggest following the manufacturer's directions. It was a range hood, I think, maybe a stove -- and your "advice" _directly_contradicted_ the manufacturer's directions that the OP quoted. Those directions said to attach the green wire to the grounding conductor. You told him to attach it to the neutral. That's why I say you're dangerous: because you don't have a clue, and yet you continue to give "advice". BTW -- I always figured you were lying when you claimed you killfiled me. Thanks for proving I was right. A couple days ago I deleted all the blocks figuring they were probably all gone and there was no reason to check against them. Beats me how you have survived. Bye Uh-huh. Sure. -- Regards, Doug Miller (alphageek at milmac dot com) It's time to throw all their damned tea in the harbor again. |
#17
|
|||
|
|||
220V for 110V cooktop?
wrote in message ... "PaPaPeng" wrote in message What will happen if I plug it into a 220Vac power supply instead... Smoke. How about a series diode or a 240 V lamp dimmer? Or put both plates in series, if the powers are different. Nick The dimmer would cost far more than the hot plate...probably not a solution...you think???.... |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
How can I start a 220V well pump in a blackout if I don't have a 220V generator? | Home Repair | |||
7.5hp 3 phase, 440v to 220v. Am I wiring this up right? | Metalworking | |||
Setting up a 220v service in the garage. | Home Repair | |||
HELP! Need question answered on 220v microwave | Home Repair | |||
220V outlet | Home Repair |