I needed this video. We just bought an old mobile home on some property. The furnace is garbage and way way old. I have done residential but not any on mobile homes. This saved me a ton of headache
I have one just like this model in my mobile home that was replaced a few years ago. It would be great if you could do a video on how to clean and maintain it since the layout is so different from your video on a normal gas furnace. Also, since the switch is on the inside at the top of the component box, a video on how to pigtail that switch to run on an inverter/solar generator, would be so helpful!
The old furnace you removed was a Coleman DGAT most of those were part of a massive recall. I have removed some of those with a hole in the heat exchanger the size of a quarter typically on the back right side of the heat exchanger. It is best practice to replace the roof-Jack, you are replacing a Coleman for a Interterm those roof jacks are not the same. In my area you won’t be eligible for a warranty unless the roof Jack is purchased with the furnace. In my experience you end up taking the sawzall to those because the inner flue is almost always stuck to the top of the furnace.
Interesting. Learning new things every day. Thanks for your input. This one came out and the existing one slid right over the new inlet and it was the same size so I guess we got lucky.
Do you have any idea how the connection is happening between the existing ductwork and the new furnace? I looks like he just sits th furnace over the opening? No sealing tape, screws, mastic??
Nice job dealing with that tight space. Wow aluminum wiring going to the furnace. Must be a 1970s mobile home. You have to make those wire nut connections well or they will melt.
Thanks for this excellent video. I’ve replaced my unit with a new DGAX Coleman single stage down flow unit (nearly identical to yours) but the fan speed on the heater is way too high and super loud. I don’t have the jumper setup like you have to adjust the fan speed,I have a slightly newer model that doesn’t allow for moving the wire to adjust fan speed. I’m wondering if you have installed a newer unit and if so how did you adjust the heat fan speed?
What happens if the blower motor is pushing to much cfm during the heating season and cooling season. I thought you want high cfm 1500 to have better filters for allergies.
I’m confused I just watched a video before this one stating all these reasons you said not to upgrade to a 95% efficiency furnace but at the end of this video you say checkout this video on how to replace a 95% furnace that you highly recommend it.
They requested a high efficiency furnace. I’ve had a lot of people say their high efficiency furnace has given them little problems so I’m coming around to the idea of them, but I definitely prefer an 80% personally. Sorry for the confusion. Cheers
Hey man, first off I LOVE your content. You were one of the easiest to follow when looking up the problem I’m having. So thank you for making these videos. I’m slowing watching them all! I’m having a problem with my drain line on the AC unit, and the contractor told me to installs cleanout tee but I don’t have much space to replace it. Thoughts?
I just installed this same furnace. I have a question for you . Inside my flame coming out of the burner is nice and blue . The surrounding flames inside combustion chamber are yellow . Is it safe to say it’s running correctly ? Air flow gas flow etc ?
I get one from alpinehomeair Alpine AH1854S4A between 2.5 to 4 Ton, W 18 X H 18 1/2 X D 19 5/8, Uncased Mobile Home Evaporator Coil, R-410A Refrigerant
I have watched several of your videos, and I have to say they are great and very informative. But I have a very off topic question for you, because I see it in all your videos I have watched. What watch band do you have for your smart watch? I know it has nothing to do with diy'ing, but I gots ta know :)
When you have black pipe gas line is it possible to loosen the fitting under the trailer house without holding back on the fitting? Do I need to hold back on the pipe under the tailer house well losing the fitting?
I unthreaded the black pipe and pulled it up out of the whole then when the new furnace was in, used a light and fished the pipe back through the hole with pipe dope on the threads and threaded it back in 👍🏼
Ruud is definitely superior in a lot of ways. The access panels are way easier to remove and the units physically look like they are made with better materials. Spark ignition which I like as well. And all of their coils come with a built in txv. Goodman is a good brand but Ruud is more installer/service friendly 👍🏼
Love the video on this model is exactly th same one I'm installing in a friend's trailer. However, I have no idea how that actual connection to the duckwork is happening without leaks. As your video does not show any portion of how that happens. The closet that I'm working in is so tight. There's absolutely no way to get to the back. Or the sides effectively unless I open up. The wall which i'd prefer to do then crawl underneath this monster as I have no idea what lies under there in a 30 year old trailer. I'm sure it's a big can of worms.
Ok I just hope the transition piece will work as I believe back when this was built the combustion air was supplied from under the trailer. The MG1 model uses the roof jack for both exhaust and combustion air. I guess we will find out when we pull out the old just hoping not to damage the existing transition piece.
I am helping a friend who also has a 30 yesr old propane hot air downflow in his double wide. OMG I ha no idea what i ave gotten myself into! Now i understand why his estimates all came in so high. When i though should be a 4 to 8 hour install myself looks more like a week long renovation of this ancient moble home. First old roofjack is incorrect for the new furnace as it only allows exhaust gas out andhas no provision for the combustion air. So that will need a completely new system and the roof is in very poor condition. Now i can see no possibility to connect to th existing under floor ductwork, and quite frankly i am fully exspecting a complete nightmare underneath where i assume is the only possibility to make that connection? Ifthere is video or better way i would love to learn. The closet is very tight on the back and sides however itis a short unit as no cooling coil cabinet. Perhaps build a transition metal box to instal first while leaving the furnace jacked up a few inches to allow some space towork sealing up everything. Anyadvice youcan give will be most appreciated!!! Than you in advance
How would a raccoon get in my heater ? I'm assuming that's what it is but it sounds like WW3 inside my heather in my mobil home heater ,any ideas would be greatly appreciated.
I needed this video. We just bought an old mobile home on some property. The furnace is garbage and way way old. I have done residential but not any on mobile homes. This saved me a ton of headache
What a godsend! This is exactly what I was looking for, on how to remove and replace a mobile home counter flow. THANK YOU!
Yes I have a double wide would like to see a new installation of an electric furnace only
Thanks for the video very helpful. Ho do I go about checking the gas pressure with the monometer? Gracias.
Thank you very much you did make it look very easy and most of all thank you for not playing music drowning your voice out Good job.
I have one just like this model in my mobile home that was replaced a few years ago. It would be great if you could do a video on how to clean and maintain it since the layout is so different from your video on a normal gas furnace. Also, since the switch is on the inside at the top of the component box, a video on how to pigtail that switch to run on an inverter/solar generator, would be so helpful!
wow, I have that issue with mine it is so loud I can barely hear the TV so if I lower the fan speed it should help? thank you man you are a godsend.
Great video!
The old furnace you removed was a Coleman DGAT most of those were part of a massive recall. I have removed some of those with a hole in the heat exchanger the size of a quarter typically on the back right side of the heat exchanger. It is best practice to replace the roof-Jack, you are replacing a Coleman for a Interterm those roof jacks are not the same. In my area you won’t be eligible for a warranty unless the roof Jack is purchased with the furnace. In my experience you end up taking the sawzall to those because the inner flue is almost always stuck to the top of the furnace.
Interesting. Learning new things every day. Thanks for your input. This one came out and the existing one slid right over the new inlet and it was the same size so I guess we got lucky.
Is that recall still in effect for the older Coleman furnaces?
@mwpahl38 I believe the program ended
@@manuelbustillos3925 gotcha. Thanks for the reply!
Great job and amazing on TH-cam video
I just bought 18 mobile homes in Texas so I'm grateful for these videos.
Do you have any idea how the connection is happening between the existing ductwork and the new furnace? I looks like he just sits th furnace over the opening? No sealing tape, screws, mastic??
Nice job dealing with that tight space. Wow aluminum wiring going to the furnace. Must be a 1970s mobile home. You have to make those wire nut connections well or they will melt.
Wouldn't pass inspection in Iowa
Thanks for this excellent video. I’ve replaced my unit with a new DGAX Coleman single stage down flow unit (nearly identical to yours) but the fan speed on the heater is way too high and super loud. I don’t have the jumper setup like you have to adjust the fan speed,I have a slightly newer model that doesn’t allow for moving the wire to adjust fan speed. I’m wondering if you have installed a newer unit and if so how did you adjust the heat fan speed?
What happens if the blower motor is pushing to much cfm during the heating season and cooling season. I thought you want high cfm 1500 to have better filters for allergies.
Lower the blower speed
What is pokie? Or whatever sealant you are referring to?
It’s the paste that you brush on all the seams on your ductwork. Here is a link for it. It comes in a tub and is grey. amzn.to/45DY9pp
@@diyhvacguy what about the drip leg on connections for lp? I ask because I'm actually installing one tomorrow for a rental of mine.
Exactly what size wire do I use to run from the breaker box to a electric furnace. It is heat only.
I’m confused I just watched a video before this one stating all these reasons you said not to upgrade to a 95% efficiency furnace but at the end of this video you say checkout this video on how to replace a 95% furnace that you highly recommend it.
They requested a high efficiency furnace. I’ve had a lot of people say their high efficiency furnace has given them little problems so I’m coming around to the idea of them, but I definitely prefer an 80% personally. Sorry for the confusion. Cheers
Hey man, first off I LOVE your content. You were one of the easiest to follow when looking up the problem I’m having. So thank you for making these videos. I’m slowing watching them all! I’m having a problem with my drain line on the AC unit, and the contractor told me to installs cleanout tee but I don’t have much space to replace it. Thoughts?
If you need technical help we offer it at Patreon.com/diyhvacguy Hope we can help.
I just installed this same furnace. I have a question for you . Inside my flame coming out of the burner is nice and blue . The surrounding flames inside combustion chamber are yellow . Is it safe to say it’s running correctly ? Air flow gas flow etc ?
Did you change the roof jack cap to a nordyne style? It does matter.
Hi , Do you know what is the right coil for that furnace and where I can find it?, I forget say the coil for the old one in the video .
I get one from alpinehomeair Alpine
AH1854S4A
between
2.5 to 4 Ton, W 18 X H 18 1/2 X D
19 5/8, Uncased Mobile Home Evaporator Coil,
R-410A
Refrigerant
Nice job
I have watched several of your videos, and I have to say they are great and very informative. But I have a very off topic question for you, because I see it in all your videos I have watched. What watch band do you have for your smart watch? I know it has nothing to do with diy'ing, but I gots ta know :)
It’s an Apple Watch Ultra 🤘🏼
Absolutely love it
When you have black pipe gas line is it possible to loosen the fitting under the trailer house without holding back on the fitting? Do I need to hold back on the pipe under the tailer house well losing the fitting?
I unthreaded the black pipe and pulled it up out of the whole then when the new furnace was in, used a light and fished the pipe back through the hole with pipe dope on the threads and threaded it back in 👍🏼
@@diyhvacguy Thanks for the information. I am going to use this in my project
Are you in California?
What is that sealant stuff called, "pookie?"?
I have noticed on most of your installs you have switched from goodman equipment to rheem ,why was that ,thanks
Ruud is definitely superior in a lot of ways. The access panels are way easier to remove and the units physically look like they are made with better materials. Spark ignition which I like as well. And all of their coils come with a built in txv. Goodman is a good brand but Ruud is more installer/service friendly 👍🏼
Wait? Mine has an air conditioner. What was that part about the air conditioner and pumping something?
Love the video on this model is exactly th same one I'm installing in a friend's trailer. However, I have no idea how that actual connection to the duckwork is happening without leaks. As your video does not show any portion of how that happens. The closet that I'm working in is so tight. There's absolutely no way to get to the back. Or the sides effectively unless I open up. The wall which i'd prefer to do then crawl underneath this monster as I have no idea what lies under there in a 30 year old trailer. I'm sure it's a big can of worms.
I just caulk the bottom but if it has some small leaks it’s not the end of the world. It’s supply air not return.
Ok I just hope the transition piece will work as I believe back when this was built the combustion air was supplied from under the trailer. The MG1 model uses the roof jack for both exhaust and combustion air. I guess we will find out when we pull out the old just hoping not to damage the existing transition piece.
I am helping a friend who also has a 30 yesr old propane hot air downflow in his double wide. OMG I ha no idea what i ave gotten myself into! Now i understand why his estimates all came in so high. When i though should be a 4 to 8 hour install myself looks more like a week long renovation of this ancient moble home. First old roofjack is incorrect for the new furnace as it only allows exhaust gas out andhas no provision for the combustion air. So that will need a completely new system and the roof is in very poor condition. Now i can see no possibility to connect to th existing under floor ductwork, and quite frankly i am fully exspecting a complete nightmare underneath where i assume is the only possibility to make that connection? Ifthere is video or better way i would love to learn. The closet is very tight on the back and sides however itis a short unit as no cooling coil cabinet. Perhaps build a transition metal box to instal first while leaving the furnace jacked up a few inches to allow some space towork sealing up everything. Anyadvice youcan give will be most appreciated!!! Than you in advance
👍👍👍👍 GOOD GUY 👍👍👍👍
Yessss
You should have pulled the roof jack up before pulling it out if your going to reuse it...
What if its an electric furnace?
How would a raccoon get in my heater ? I'm assuming that's what it is but it sounds like WW3 inside my heather in my mobil home heater ,any ideas would be greatly appreciated.
Don’t you have to put a drip leg on your gas pipe ?
No because it comes from below 👍🏼
You cut that video up because you didn't want to see the real problems with that install
You never install a new furnace with out replacing the roof stack. Just the lazy way to install a new furnace. You get a F on this job.
Bullshit!!
Im literally doing that tomorrow,they didn't pay for a roof stack. They get the old one, it's still in great condition.
You going to pay for it