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Author Topic: Surprise Boxed Empire No 90 - Makes Steam & Runs!  (Read 1784 times)

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Re: Surprise Boxed Empire No 90 - Makes Steam & Runs!
« Reply #30 on: September 15, 2022, 06:58:45 pm »
Thank you @Paula , I have ran her 3 more times since that video and the heater seems to be holding.  This last time I ran her about five 5 minutes after filling her tank, then I removed the power.  She kept running for another 50 seconds before coming to a full stop - fabulous!

So it seems all my previous "leak" repairs are holding - even the sight glass using Teflon tape, not one drop is weeping out.

I hope the details I provided helps others, with a little care and the right materials you can make a heater for these little engines.  I'd image the bigger B Series are easier, since you don't have to make two strips!  I don't remember what what the ohms were on the old heater before it blew, I just recall checking I got a reading.  With a little Ohms Law, she is running at 456 watts / 3.68 amps with a supplied 124v A/C.  I think that is a bit high for the wattage, as I seen a similar Empires (not the copper tank) listed a 350 watts under them.  The bottom of this engine has no stamping / branding marks to give me a guide.  Though perhaps it was originally calculated at 110v - if so that would be 359 watts / 3.26 amps.


Yes, many thanks to all that have helped - some in other threads they started or replied too that have haven't visited this thread.  This is a superb forum and the admins really give you some rope to whine about stuff LOL
Richard

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Re: Surprise Boxed Empire No 90 - Makes Steam & Runs!
« Reply #31 on: September 15, 2022, 09:08:43 pm »
My two B90's are rated at 350 watts
as is a B31 and all are in the low
30's ohm range.  The B30, rated at
300 watts measured maybe 40.

  And since Elektro's are a predecessor to the
Empire line... 

 I had a friend with very good diagnostic
meters and we tested the band heater I used
in an Elektro project.  It was rated 380 watts
but guess what....maybe 150 watts.  What a rip.
I'm sure it would run better at a true 380.

  I have two other Elektro's and the tags read
115 volts and 2.5 amps, or about 280 watts.
We checked the resistance and it measured 28 ohms.   
that is at least 450 watts and it heats like it. 
The calculations/estimats are based on DC formulas,
but close enough for me.

Wayne


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Re: Surprise Boxed Empire No 90 - Makes Steam & Runs!
« Reply #32 on: September 15, 2022, 09:10:25 pm »
Thought I'd do another video, this is showing her building steam and making enough power to keep the wheel moving.  Even with the original heater before it blew I had to give the wheel a good flick to get things going good.  Now, I just need to give her a nudge and off she goes!

Richard

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Re: Surprise Boxed Empire No 90 - Makes Steam & Runs!
« Reply #33 on: September 15, 2022, 09:16:29 pm »
My two B90's are rated at 350 watts
as is a B31 and all are in the low
30's ohm range.  The B30, rated at
300 watts measured maybe 40.

  And since Elektro's are a predecessor to the
Empire line... 

 I had a friend with very good diagnostic
meters and we tested the band heater I used
in an Elektro project.  It was rated 380 watts
but guess what....maybe 150 watts.  What a rip.
I'm sure it would run better at a true 380.

  I have two other Elektro's and the tags read
115 volts and 2.5 amps, or about 280 watts.
We checked the resistance and it measured 28 ohms.   
that is at least 450 watts and it heats like it. 
The calculations/estimats are based on DC formulas,
but close enough for me.

Wayne



All my other Bs are mid-ish 30s Ohms.  There was one Empire I saw the underneath stamping as 450w - don't recall which one that was but it was on eBay that had a photo of the bottom.  I think this #90 is close to what it was when it came out of the factory.  I been playing with it all night and it hardly breaks the stack steal (I get just a slight bubbling out of it).
Richard