Itt gas valve - Fiberglass RV
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Old 01-05-2023, 07:35 PM   #1
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Name: Denis
Trailer: Old 1972 camper
Alberta
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Itt gas valve

Good day all, new member today😊
I am looking for an ITT gas valve, part number RV18AA02.
I know I can get a replacement Robertshaw, but the price, YIKES!
Hope someone can help, thanks.
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Old 01-06-2023, 10:42 AM   #2
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Name: Dave W
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Quote:
Originally Posted by Denis mcintosh View Post
Good day all, new member today😊
I am looking for an ITT gas valve, part number RV18AA02.
I know I can get a replacement Robertshaw, but the price, YIKES!
Hope someone can help, thanks.
The price is not the only issue with the Robershaw solution. The ports are in different places as well. This means that to install the Robertshaw valve some tube bending is also required. Tube bending is a bit of an art that is learned with experience.

I did a tear down of your valve:
https://www.fiberglassrv.com/forums/...a02-86546.html

You may be able to repair it. Though if the furnace never shuts off, then the temperature sensor bulb may be leaking. Not much chance of fixing that.

The best way to source another one is to look for a secondhand furnace that uses the same valve. I typically pay about $100 for one.
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Old 01-06-2023, 01:31 PM   #3
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Name: Denis
Trailer: Old 1972 camper
Alberta
Posts: 5
Itt gas valve

Thanks for your reply Dave. The sensing bulb appears to work. I believe the problem is the magnetic coil in the valve. The thermocouple is new.Iíve had the valve on the bench. Diaphragm is good, the valve components are clean.
Again, thanks for your help, I will try to find a valve on Kokomo or eBay. Tv recyclers donít have one right now.
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Old 01-08-2023, 07:27 AM   #4
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Name: Denis
Trailer: Old 1972 camper
Alberta
Posts: 5
HYDRA FLAME furnace

HI all, I'm having problem interpreting the label on my furnace. It is a Hydra Flame model ARC10A. The label shows INPUT is 10,000 BTUH and OUTPUT 7,000 BTUH. Can someone explain this info? Thanks, Denis
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Old 01-08-2023, 08:59 AM   #5
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Name: You can't call me Al
Trailer: 1977 Scamp 13'
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Originally Posted by Denis mcintosh View Post
The label shows INPUT is 10,000 BTUH and OUTPUT 7,000 BTUH.
Input BTUH is the amount of energy contained in the fuel consumed per hour of operation.
Output BTUH is the amount of energy contained in the heat that goes into your camper per hour of operation.

The difference is due to the inefficiency in burning the fuel and heat that goes out the exhaust instead of into your camper.

When calculating how much fuel you are going to use in an hour (running the furnace full-blast) use input BTUs.

When calculating how hot it's going to get in your camper, use output BTUs.
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Old 01-08-2023, 10:24 AM   #6
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Name: Denis
Trailer: Old 1972 camper
Alberta
Posts: 5
Thanks for the info Alan, much appreciated.
I am trying to find a replacement for my RV18AA02 gas valve. One replacement is the Robertshaw 710-201. The rating on the valve is over 100,000 btuh. Seems like overkill , but I might no choice.
Denis
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Old 02-03-2023, 11:39 AM   #7
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Name: Denis
Trailer: Old 1972 camper
Alberta
Posts: 5
Smile Robertshaw gas valve

Thanks to all for your help.
I was lucky enough to buy a brand new 710-201 Robertshaw gas valve to replace my no longer available RV18AA02 valve on E Bay for 90$. LUCKY!
The installation went great. Had to buy a new thermocouple. Just had to hand bend the pilot gas tubing. The 3/8" main tubing connected right up. The replacement valve has 3 possible outlet ports, just plug off the unwanted ones.
All in all, easy install.
Thanks again, Denis
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Old 02-03-2023, 12:15 PM   #8
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Name: Dave W
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Good price! Glad the installation went well.
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