Heaters kw

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Fordean

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New Jersey
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Electrical Contractor
I have a cut on a dayton heater I need to replace a heater 4kw @208 1 phase

cut states 2000/4000kw @208 1 phase
What is the 2000kw meaning in cut this is strictly 208 v Not 208/240vE127F3BD-66BA-41FA-AC7D-8832984E1E8E.png
 
It's a 4000W heater that you can either use with a selector switch to change between 2000 or 4000W, or you can permanently convert to being 2000W by cutting a wire.
 
It comes from the factory configured to deliver 4000 watts of heat. There's a simple procedure spelled out in the instructions to configure it for 2000 watts.

While it's reasonable to connect a 240-volt resistance heater to 208 -- if you don't mind only 75% as much heat as it specifies -- I would never presume the opposite. It says "208 volts", not "208-240" or "208-240-277" and I would take them at their word. Something's likely to overheat.


Screenshot_20210209_005004.jpeg

 
So half power merely eliminates one of two elements. I guess you could wire them in series if you wanted to.
 
Grainger had a decent websight in 2011 which was then completely destroyed by IT personnel, who obviously know nothing about Technical Products or what works. The old websight actually was useful. This one is a colossal joke, and the product information and descriptions degrade on a daily basis. On this forum, its almost guaranteed you will have infinitely more expertise in determining what you are looking at in detail, than anyone else in their employ, and it may require going to other websights to get it all sorted out.
 
StarCat said:
Grainger had a decent websight in 2011 which was then completely destroyed by IT personnel, who obviously know nothing about Technical Products or what works. The old websight actually was useful. This one is a colossal joke, and the product information and descriptions degrade on a daily basis. On this forum, its almost guaranteed you will have infinitely more expertise in determining what you are looking at in detail, than anyone else in their employ, and it may require going to other websights to get it all sorted out.
Click to expand...
2011 the site was probably designed to work on large screen what they have now was likely an attempt to make it work better on smaller screens?
 
LarryFine said:
So half power merely eliminates one of two elements. I guess you could wire them in series if you wanted to.
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transformers. if you put two 2000 watt heaters in series would only get around believe its 500 watts of heat. I almost 100% sure that if you run a 2000 watt 240 volt heater on 120 volts you only get 25% of watts = 500. Won a lunch over this about 45 years ago against a know it all prima donna sparky. He still did not believe it even after using 3 different ampbrobes to meadure current flow.
 
I've known how voltage vs power works for many years. I used to build high-current power supplies for bridging audio amplifiers.

Bridged amplifiers can provide quadrupled amplifier power, as long as the amp can deliver double power into half the impedance.
 
kwired said:
2011 the site was probably designed to work on large screen what they have now was likely an attempt to make it work better on smaller screens?
Click to expand...
No, Grainger's website's user interface has always been horrible. Looking for a lightbulb? Choose the lumen output desired: 780, 800, 805, 815, 818, 820, 830, "not specified", ... Choose one at a time and wait for a screen refresh after each selection. I can't choose a minimum/maximum range, like Newark's?

Their back end -- inventory, shipping & billing -- seems to be flawless. (at least the results; I have no idea whether it's easy to use or horrible)
 
drcampbell said:
No, Grainger's website's user interface has always been horrible. Looking for a lightbulb? Choose the lumen output desired: 780, 800, 805, 815, 818, 820, 830, "not specified", ... Choose one at a time and wait for a screen refresh after each selection. I can't choose a minimum/maximum range, like Newark's?

Their back end -- inventory, shipping & billing -- seems to be flawless. (at least the results; I have no idea whether it's easy to use or horrible)
Click to expand...
Lots of sites like that, especially if they cover a wide range of product types and manufacturers like grainger does. Home Depot, Lowes and similar aren't much better, plus you need to use handyman and DIY
drcampbell said:
No, Grainger's website's user interface has always been horrible. Looking for a lightbulb? Choose the lumen output desired: 780, 800, 805, 815, 818, 820, 830, "not specified", ... Choose one at a time and wait for a screen refresh after each selection. I can't choose a minimum/maximum range, like Newark's?

Their back end -- inventory, shipping & billing -- seems to be flawless. (at least the results; I have no idea whether it's easy to use or horrible)
Click to expand...
garbo said:
transformers. if you put two 2000 watt heaters in series would only get around believe its 500 watts of heat. I almost 100% sure that if you run a 2000 watt 240 volt heater on 120 volts you only get 25% of watts = 500. Won a lunch over this about 45 years ago against a know it all prima donna sparky. He still did not believe it even after using 3 different ampbrobes to meadure current flow.
Click to expand...
Some don't trust things like Watt's law or Ohm's law I guess.
terms instead of professional terms when searching if you want better search results.
 
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