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Every 120 Volt space heater I've ever seen has been limited to 1500 watts, which equates to approximately 5,000 BTU's. Theoretically, put that on 240 volts and you double the wattage and the BTU's.

Having 240 volts available vs 120 does effectively make better use of the existing wiring already in place, since you're essentially "pushing more juice through it" by increasing the voltage. The concept is just like with indoor plumbing, the higher the pressure, the more volume you can push through and therefore technically use a smaller pipe. With lower pressure you need a larger pipe to get the same volume as that smaller pipe with higher pressure.

Once you get into the 240 category with space heaters I think the wattage options are quite flexible since you can get one requiring anywhere from a 15 amp 240 volt circuit all the way up to 50 amps (I'm guessing). So add a second space heater to the garage (on a different circuit) and you'll basically get the same results as if you had a single 240 volt 3,000 watt space heater.
 
Gusherb hit the issue just right-increase the voltage--and you can convey MORE power over the same guage wire.That is why your homes dist transformer may be fed with a peice of 12-14 ga bare wire from the overhead line.The transformer primary is like only 6A even if you have your transformer fully loaded.Now an Opposite extreme-filament wiring for a transmitter tube-say the tube filament draws 15A@ 12V-the 14G cable will be fine here-but look how much power in this case the lead will convey!If you go above that with like 12V the wire will overheat!.Getting rid of the 120V would be a good energy and efficiency move!But doubt this will happen in the US.Your major appliances could run from like 480V and yes,we can convey more energy over the same guage cables as opposed to 240V in major equipment.Also motors could run more efficiently and draw less of a start surge.For industrial customers-running large motors on the highest voltages available to them gives the best efficiency!It is becoming more common to see industrial motors 200Hp and over running from 2500,4160,even 13.8Kv.
 
Dos And Don't s Of Using A Pressure Cooker On Induction

This piece of writing was stupid, it was written by someone that does not understand how things work.

 

In my experience of cooking for more than 30 YEARS with pressure cookers on induction cooktops I have NEVER had any difficulties or faced any learning curve in doing so, and just the opposite is actually true, it is much easier to use a PC on an induction CT period.
 
A couple of comments

Re Reply#26, I have often wondered about stray fields from Induction cookers. Are they safe with Pacemakers??

Re Reply#9 Our (U.K.) energy (Electricity and Gas) infrastructure is also crumbling. I have no idea how it is still standing up to the strain. There has been no serious investment for decades!! Hence the companies now wanting to implement 'Time Of Use' billing to reduce the demand peaks. This only affecting the poor, of course... ;-)

All best

Dave T
 
Pacemakers

From the manual

WARNING
The magnetic fields generated during operation of the
appliance may lead to adverse effects.
Adhere to the following safety instructions:
► People with elevated electrical sensitivity should not remain
in the immediate vicinity of the appliance for longer than is
necessary.
► If in any doubt, people with pacemakers or implanted
medication pumps should consult their doctor about the
harmlessness of using the appliance.
► Do not place any magnetisable objects, e.g. credit cards,
data carriers or cassettes on or in the immediate vicinity of
the appliance.
► Place cooking utensils in the middle of the hob, so that the
base of the pot covers as much of the electromagnetic field
as possible.
► Do not remove any coverings on the appliance.
 
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