How much amperage comes out of those little thermostat wires from the boiler?

[Bungalocity]

So I got this art-deco bakelight thermostat on Ebay for way more than I should have spent, and it's not got
a mercury capsule to make the circuit but rather a coil/magnet.


It's the coolest thing in the world.
But the back says "use only on circuit of .6 - .8 amperes"  Max. rating: 2 Amps", 25 volts A.C."

Anyone know what the Honeywell flying saucer should be? 'Cuz that's what I have up there right now.  can't wait to get this in place!

[buzz]

I kept mine when I replaced it with a programmable.  I just got it up from the basement.
Class 2
30 V. MAX

This old Honeywell has both a coil, and a mercury capsule.
Does that help ?
Do you have an owner's manual from your furnace ?

[buzz]

Oh, this may help.  If you can snap the dome off like my old one, the rating is stamped at approximately 10 o'clock on the housing under the dial.  I had to use a magnifying glass to read it.

[Bungalocity]

I think I'm going to be alright. The boiler manual from '88 says something
like penn-electric (which is what the parent co was) and honeywell were
set to .7

What that means is that all the old school thermostats had something called an
'anticipator' that had something to do with anticipating when the temp would get hot enough,
and the amperage coming in from the boiler.  I'm going to hook it tomorrow to see
if the signal triggers the heat.

But the thing is so sensitive if I blow hot air on it the coil disengages the little magnet and cuts the circuit!
So simple yet so amazing. 
I hate modern technology.

[Bungalocity]

PS - the paint on it in these ebay photos was easily gotten off with stripper!
Imagine that, stripper will melt plastic, yet bakelight is impervious to it!
Even modern plastic sucks.

[dukesdad]

This would be a question for Marty at Martin-Aire.

[buzz]

This would be a question for Marty at Martin-Aire.

Definitely....
And Marty how do I dispose of the old thermostat with the mercury in it ?

[Bungalocity]

THat's ok, this thing works about as perfect as a Swiss watch.
And simple beyond belief!

I knocked out the plaster around the flying saucer mark, remudded to perfection and now I have a perfectly functioning 80 y/o thermostat!  I waited 4 months for the right one on Ebay. polished it up with Tung oil for a nice sheen.

What can I say, cool as hell. The nature of a coil and magnet anticipator makes it work better and more even heat than the Honeywell.