plugging burner orfices

[rick4670]

Has anyone ever plugged an orfice on a 90% condensing furnace. I have a chance to get a Trane tux120 furnace for my house and its a little big for my application. I was going to plug one of the burners so its a 100,000 btu furnace. This furnace will be used in a dual fuel setup. I was concerned about possible corrosion in the "dead" cell.

As far as the cfm requirements for cooling goes I planned on using the low speed for heat and med. low for cooling to acheive the correct amount of air for 3.5 tons of cooling.

Appreciate any help you guys might have on this setup. Havent worked with residential equipment for awhile, alot has changed.

[Twilly]

Twilli has plugged a few orfices in his day

[mcginkleschmidt]

Twilli has plugged a few orfices in his day

Twilli is a commodean! :D

[amd]

Don't do it.

Have a correctly sized furnace properly installed.

[sdeery]

I second Amd,
Even if you tweak it to suit your needs its just going to be a headache and likely cost you more money in the long run than it would to just buy the properly sized furnace.

[beachtech]

go ahead and plug it :) let me know how that works out for ya :)

i don't have a crystal ball, but i can see the future clearly :D:D:D

[JKopp]

Twilli has plugged a few orfices in his day
Twilli,
Care to elaborate further? Mexico? LMAO.

[ar_hvac_man]

Twilli has plugged a few orfices in his day

:D thx for the brain scar.

[hvaclover]

I do nont advise it.

Call the factory and see about derating it with new burner orifices.

[rfhcms]

I do nont advise it.

Call the factory and see about derating it with new burner orifices.

I agree with quote. Rerate with approved orifices. The stress on the hex will shorten it's life. Also, you said something about dual fuel. Gas orifices and LP orifices are totally different, along with the air requirements. Besides, which fuel orifices are in it now? Derating is one thing, dual fuel is a whole new problem. The insurance company will find the details when things go boom.

[the dangling wrangler]

I don't think anyone on this board thinks this is a good idea. Who in their right mind, would want to be married to this frankenfurnace? I'm sure someone could make it work, but why? If this was for your garage, that might be a different story, but for your home? Do the right thing, get the right equipment. You'll be miles ahead in the end.

[m kilgore]

I don't think anyone on this board thinks this is a good idea. Who in their right mind, would want to be married to this frankenfurnace? I'm sure someone could make it work, but why? If this was for your garage, that might be a different story, but for your home? Do the right thing, get the right equipment. You'll be miles ahead in the end.



Ditto!!!!!!!!!

[hvaclover]

I agree with quote. Rerate with approved orifices. The stress on the hex will shorten it's life. Also, you said something about dual fuel. Gas orifices and LP orifices are totally different, along with the air requirements. Besides, which fuel orifices are in it now? Derating is one thing, dual fuel is a whole new problem. The insurance company will find the details when things go boom.

I smell a chapter 150 officer....possibly Rhineart?

[ga-hvac-tech]

When, (not if), something goes wrong, the inspectors will find the reason... and whatever insurance one has will not pay. And since the equipment was modified in a manor not approved by the factory, the manufacturer will not be liable either.

This is a classic example of being penny wise and pound foolish.

[hvaclover]

Than let the factory tell the guy that.

[rfhcms]

I smell a chapter 150 officer....possibly Rhineart?

Did the "RSES, The HVACR Training Authority" tag line give something away?

My name spelling is worst I've seen yet, but phonetically I guess thats me. Although I cannot figure who "hvaclover" may be. Only guess is you live on Ryan Road.

[hvaclover]

Did the "RSES, The HVACR Training Authority" tag line give something away?

My name spelling is worst I've seen yet, but phonetically I guess thats me. Although I cannot figure who "hvaclover" may be. Only guess is you live on Ryan Road.

No but you're close. That would be Metal Fab on Ryan.

As to who I am ...:D only NEED TO KNOW people at the senior board level have that info.;)

See ya around. Nate Patch and all.:eek:

And isn't it ironic that that you meet the minimum post requirement to attain Pro-status with your reply to me.

Tell the board HI for me.

[beachtech]

I agree with quote. Rerate with approved orifices. The stress on the hex will shorten it's life. Also, you said something about dual fuel. Gas orifices and LP orifices are totally different, along with the air requirements. Besides, which fuel orifices are in it now? Derating is one thing, dual fuel is a whole new problem. The insurance company will find the details when things go boom.


lmao dual fuel is a whole new problem? just what is the whole new problem? there is only one problem right now, DO NOT PLUG AN ORIFICE!!!!

whats that got to do with adding a heat pump to the furnace?

or they don't talk about that in RSES :confused:

[hvaclover]

lmao dual fuel is a whole new problem? just what is the whole new problem? there is only one problem right now, DO NOT PLUG AN ORIFICE!!!!

whats that got to do with adding a heat pump to the furnace?

or they don't talk about that in RSES :confused:

The term "Dual Fuel" is not part of the vernacular in Mi. We don't see too many heat pumps here. We call them just "Heat pumps with gas furnnace".

The gent is a Local 636 member and is sharp as a razor.