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Old 06-22-2009, 05:44 PM   #1
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How do I convert my furnace from propane to NG?


I have a Consolidated Furnace mba 120 NH4R that I need to convert from propane to natrual gas. Any literature or guidelines out there to help me DIY?

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Old 06-22-2009, 06:22 PM   #2
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How do I convert my furnace from propane to NG?


I'm no HVAC expert, but I believe it's a matter of changing the orifice in the gas valve. I REALLY don't think it's a DIY project though. I'm sure you'll get more replies.....

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Old 06-23-2009, 08:13 AM   #3
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How do I convert my furnace from propane to NG?


Thanks.
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Old 06-23-2009, 11:02 AM   #4
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How do I convert my furnace from propane to NG?


Yes, you will need to convert your gas valve or replace it if conversion kit not available, also change or drill your burner orfices to correct BTU rating. Reset gas pressure with manometer to natural gas w/c specs.
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Old 06-23-2009, 11:23 AM   #5
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How do I convert my furnace from propane to NG?


Thanks EVAPMAN
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Old 06-23-2009, 02:43 PM   #6
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How do I convert my furnace from propane to NG?


You may have problems finding a kit for this furnace. Consolidated Industries went out of business years ago. The valve spring you should be able to find. You may be able to find someone who can gauge and drill the orifices for you.
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Old 06-23-2009, 06:11 PM   #7
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How do I convert my furnace from propane to NG?


Do you think I can get away with just drilling out the oriface?

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