Need help converting an older Majestic from NG to LP

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
Status
Not open for further replies.
D

deluzbee

New Member
Aug 18, 2010
15
CA
Hi Everyone,

I'm new to this forum so hello and i'm glad to be here.
I have a question I purchased an older Majestic natural gas fireplace on CL. Model# RFG36A. Its a free standing retro fireplace from the 70's I think. Can anyone help me figure out how to convert it to liquid propane. I tried calling Majestic and they say its obsolete and there is no parts available. Anyone think otherwise let me know please. Its a beautiful white enamel fireplace and I'd hate to loose it.


thanks
Jonathan
 
I'm not sure. The stove is complete and set up for NG. I would imagine I do need those things. Is the conversion possible ?
 
Majestic isn't even around anymore. Some other company bought them out. I called the new company and all I got was a VM. A dealer called for me and they said my fireplace was obsolete and that there is no conversion. I think there has to be away. Unless my unit just cant handle the heat from the propane.
 
http://www.mhsc.com
Customer Svc. # - 800-525-1898
You can obtain most manuals on the website, otherwise call the manual hotline: 800-525-1898 ext.2500
Use 800 525-1898 ext 7504 for vermont tech 10-21-2008 dg
------------------------------------------------------------------
Customer Svc. # - 800-525-1898

now owned by monehson hearth

it might take a new burner, in which case, no not convertable w/o it.
or it might just need a regulator, pilot and main burner orifice.
 
Thanks for the help. I tried calling and looking on line. MH said that they would try to see if they can find a manual, but seemed pretty sure that they didn't have one. I tried Tech support but no one was in. I will try in the morning. Much appreciated. I acnt seem to find much on this model. Its a freestanding mid-century that looks like a bubble.
 
Here is a picture of the stove. Maybe someone will recognize it or have more ideas. No luck so far with any dealers. Thanks much appreciated.
 

Attachments

  • IMG_9985.jpg
    IMG_9985.jpg
    41.7 KB · Views: 556
  • IMG_9991.jpg
    IMG_9991.jpg
    25.6 KB · Views: 581
  • IMG_9982.jpg
    IMG_9982.jpg
    30.7 KB · Views: 562
  • IMG_9982.jpg
    IMG_9982.jpg
    30.7 KB · Views: 539
thats true. I live in San Diego so heat is not much of an issue. It would be nice if it did put out more heat.
 
It may not be around for long if I can't convert it. I may have to sell it or trade it for another fireplace.
 
BLIMP said:
http://cgi.ebay.com/Appalachian-UV3800-Vent-Free-Gas-Log-24-LP-/160458005993?pt=LH_DefaultDomain_0&var;=#ht_890wt_704 from ebay , ventless would allow for damper installed in current fluepipe & closed so to heat room better.........ask seller if u can hook to gasline & burn. i think so but aint sure
Click to expand...

dont listen to this, they aren't even legal in CA
 
ok, so it has a robert shaw valve, more than likely we can convert that.

steps:
does the stove have a label? if so, that will tell us ng and lpg specs--take a close up picture
check valve label, is it the robert shaw 7000?
remove vavle regulator-two philips screws, its the hi/lo knob...---take pic
remove pilot and main burner orifices--take pic
since the burner will be removed, take a pic of it, and any air/fuel shutter connected to burner or main burner

i have all the majestic books from the 80's as far as i know i'll dig when i get a minute, they haven't been digitized yet, sigh
 
Wood Heat Stoves said:
BLIMP said:
http://cgi.ebay.com/Appalachian-UV3800-Vent-Free-Gas-Log-24-LP-/160458005993?pt=LH_DefaultDomain_0&var;=#ht_890wt_704 from ebay , ventless would allow for damper installed in current fluepipe & closed so to heat room better.........ask seller if u can hook to gasline & burn. i think so but aint sure
Click to expand...

dont listen to this, they aren't even legal in CA
Click to expand...
why not?
 
Thanks Dave. I'll start taking the parts apart and I will take some pictures. Be back later with that.
 
BLIMP said:
Wood Heat Stoves said:
BLIMP said:
http://cgi.ebay.com/Appalachian-UV3800-Vent-Free-Gas-Log-24-LP-/160458005993?pt=LH_DefaultDomain_0&var;=#ht_890wt_704 from ebay , ventless would allow for damper installed in current fluepipe & closed so to heat room better.........ask seller if u can hook to gasline & burn. i think so but aint sure
Click to expand...

dont listen to this, they aren't even legal in CA
Click to expand...
why not?
Click to expand...


put a gas log set in this freestanding gas stove? close damper so it vents into home--ventfree appliances are not allowed in living spaces in CA--
who tested the gas log set for this application?
pook:
if you make a recomendation that is potentially dangerous, or not to code, approved or tested by manufaturers,etc,
you should say so in the post,
or, if you dont know, say so
 
Wood Heat Stoves said:
BLIMP said:
Wood Heat Stoves said:
BLIMP said:
http://cgi.ebay.com/Appalachian-UV3800-Vent-Free-Gas-Log-24-LP-/160458005993?pt=LH_DefaultDomain_0&var;=#ht_890wt_704 from ebay , ventless would allow for damper installed in current fluepipe & closed so to heat room better.........ask seller if u can hook to gasline & burn. i think so but aint sure
Click to expand...

dont listen to this, they aren't even legal in CA
Click to expand...
why not?
Click to expand...


put a gas log set in this freestanding gas stove? close damper so it vents into home--ventfree appliances are not allowed in living spaces in CA--
who tested the gas log set for this application?
pook:
if you make a recomendation that is potentially dangerous, or not to code, approved or tested by manufaturers,etc,
you should say so in the post,
or, if you dont know, say so
Click to expand...
vent free is still legal in me. because it has the ODS. A DAMPER WOULD STILL HAVE HOLES FOR VAPOR TO EXHAUST which is main objection to ventless. I know this app would work safely but please tell me why not= I love to learn. ya, i forgot to mention the necessity of a CO detector but so did you...........I'm listening
 
Ok, I took apart everything. Here are the pictures.
 

Attachments

  • IMG_0011.jpg
    IMG_0011.jpg
    40 KB · Views: 577
  • IMG_0018.jpg
    IMG_0018.jpg
    76.2 KB · Views: 539
  • IMG_0019.jpg
    IMG_0019.jpg
    56.4 KB · Views: 531
  • IMG_0020.jpg
    IMG_0020.jpg
    42.5 KB · Views: 558
  • IMG_0021.jpg
    IMG_0021.jpg
    43.1 KB · Views: 537
  • IMG_0023.jpg
    IMG_0023.jpg
    39.4 KB · Views: 573
  • IMG_9994.jpg
    IMG_9994.jpg
    40.8 KB · Views: 553
  • IMG_9997.jpg
    IMG_9997.jpg
    19.8 KB · Views: 514
oops, its a honeywell. not sure how to convert that valve, any one know how>??

still need to take pilot tube off of pilot assy to get to pilot orifice......

the mb orifice looks very common, it could be braised shut, and re-drilled to a smaller size

anyone have gas orifice vs btu rating chart handy??, that will tell us the mb orifice size for a 21,000 btu burner
some care and experimenting will be needed to get the right size, my advice, start with a tiny orifice opening, and work your way up.

burner looks fine, does the air fuel shutter open all the way? it will need to be wide open for lpg typically
 
I took it off is this it ? Do you think i'm better off just replacing the honeywell unit with a new propane unit and a new burner assembly. Is something like that even available. If its all the same relative size I can probably get it all into the fireplace.
 

Attachments

  • IMG_0013.jpg
    IMG_0013.jpg
    17.9 KB · Views: 416
the final say on this is your code inspector with whom you should first discuss whatever you decide to do before you do it. redrilling the burner tube would probably void UL listing of the stove
 
deluzbee said:
I took it off is this it ? Do you think i'm better off just replacing the honeywell unit with a new propane unit and a new burner assembly. Is something like that even available. If its all the same relative size I can probably get it all into the fireplace.
Click to expand...

the pilot orifice is on the other end of the pilot tube, under pilot hood

i dont know of any new valve/burner systems that could go into the unit, certainly none that would be approved for that use....
 
Status
Not open for further replies.

Similar threads

W
How to reassemble Jotul variable regulator when converting LP to NG?
Replies
2
Views
786
Jotul
DAKSY
DAKSY
O
First wood stove, converting an old church into cabin with 60s firewood view stove. Many questions, please help :)
Replies
2
Views
740
Classic Wood Stove Forums (prior to approx. 1993)
bholler
B
A
Output from Majestic Oxford DV
Replies
0
Views
420
It's a Gas!
Arkansas Boy
A
P
Reviving old thread: Temco NG to LP conversion
Replies
7
Views
3K
It's a Gas!
rsplodge
R
I
Converting Vermont Castings Radiance 2240 from LP to NG
Replies
37
Views
11K
It's a Gas!
rwh63
R
Top Bottom
Back