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What does 208/240V ratings mean for electric baseboard?

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katwalatapan

Electrical
Joined
Aug 9, 2011
Messages
153
Location
CA
Hello,

I wanted to inquire about the 208/240V ratings that are available in most electric baseboards. Does it mean that the baseboard is compatible for 1-phase, 208V as well as 1-phase 240V connection? And also that when connected to 1-phase, 208V the output wattage would be 25% lower than, when connected to 1-phase 240V?

Thank you.
 
Yes.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
 
And all that means is that it would have to run longer to heat up a room the same amount. Less watts, more time, same kWh.


"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
 
Yeah, less watts & more time...but also due to slower heating rate @ 208V may require more heaters &/or better [higher R number] insulation system in colder climates in order to attain desired room temperature - see ASHRAE standards, prevailing building codes, etc.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
 
208 Volts is common in larger apartment buildings and condos. Most users are not aware that the heating of baseboard heaters, electric stoves, clothes driers and similar 208V/240V appliances is taking longer.

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
Probably because the architects, engineers, designers and tradespeople have all done their jobs reasonably well...[smile]

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
 
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