replacing my milivolt Gas Valve

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Old 01-03-20, 09:10 PM
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replacing my milivolt Gas Valve

Im new to this forum. but I went thru some of the Question here I felt they were very helpful.Hopefully I would get an answer. I have a Old Gas Boiler which worked fine. Hydrotherm HC-180.It has Thermopile and Gas valce that a serial no CS5296A, its 1/2 inch/3/4 inch INT. There is another serial no next to it. VS82/9A1034-2.
I would like to replace the thermopile, pilot and The Gas valve. I cant seem to find a replacement item no.Please help.
 
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Old 01-03-20, 09:21 PM
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Welcome to the forums.

That's a 50 year old boiler. You're not going to find the parts just sitting on the shelf.
The gas valve would be substituted.
Universal thermopiles are around.
Pilot assembly...... very doubtful.

Do you really need to change all these parts or are you trying to fix a problem ?
 
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Old 01-03-20, 09:28 PM
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thanks for quick reply. I had problems in the past with thermopile and it was replaced by a plumber. Currently Im not experiencing any issues. I was wondering if I could get some of the parts in hand for future fix ups.
Im on a budget so not planning to change the boiler anytime soon, rather if I could get those parts I could save some money in an emergency situations, I know its old
 
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Old 01-03-20, 10:05 PM
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I would recommend keeping a spare thermopile on hand.
The gas valve replacement is a bit involved and I wouldn't recommend keeping a replacement on hand.
The pilot assembly gets pulled out and cleaned.
 
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Old 01-03-20, 10:08 PM
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Thanks Pete.
It was very helpful.
 
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Old 01-04-20, 03:09 AM
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Recheck the numbers on the gas valve and if you can, post a picture of the gas valve from a couple positions. Also, a picture of the thermopile.
 
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Old 01-04-20, 07:08 AM
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Gas valve is just a standard millivolt model. They are pricey. They rarely fail if ever.

https://www.amazon.com/Honeywell-VS8.../dp/B003CVX94I

The power piles at readily available. They also do not fail too often and usually fail due to bad connection on the wiring and not producing enough voltage..

https://www.amazon.com/Honeywell-CQ2...W2HCPNGY9H1J2X

The assembly and pilot tube you will never match, and that should not have to be changed. anything will be universal..And the fact that its standing pilot

https://www.amazon.com/PG-1-Assembly.../dp/B01G4F3TFW
 
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Old 01-04-20, 03:22 PM
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Thanks Guys. Lawrosa your links were extremely helpful. Got the idea.
Steamboy thanks for your response.
 
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