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Discussion Starter · #1 ·
50-year old 2-BR old mobile home, slightly thicker wood paneling than the usual
newer and thinner stuff I see, throughout.

  • 12' x 60' home: 720 sf
  • 11 jalousie windows totaling 100 sf
  • Old style interior storm windows held in place by rotating teardrop shaped retainers.
  • One inch aluminum miniblinds all around
  • 4" thick walls with original insulation.
  • Crawl space insulation barrier 25% critter-compromised
  • Floor covering premium carpet & pad throughout except for kitchen 9x12 linoleum/108sf.

Asking for BTU size for one A/C wall unit only, to be placed in the combined area of living room and kitchen/all one big open space, then hallway runs from the open space/adjacent to exterior wall into MBR, passing by second bedroom and bathroom doors.
 

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Discussion Starter · #2 ·
50-year old 2-BR old mobile home, slightly thicker wood paneling than the usual
newer and thinner stuff I see, throughout.

  • 12' x 60' home: 720 sf
  • 11 jalousie windows totaling 100 sf
  • Old style interior storm windows held in place by rotating teardrop shaped retainers.
  • One inch aluminum miniblinds all around
  • 4" thick walls with original insulation.
  • Crawl space insulation barrier 25% critter-compromised
  • Floor covering premium carpet & pad throughout except for kitchen 9x12 linoleum/108sf.

Asking for BTU size for one A/C wall unit only, to be placed in the combined area of living room and kitchen/all one big open space, then hallway runs from the open space/adjacent to exterior wall into MBR, passing by second bedroom and bathroom doors.
Asking because this following unit/link is rated for cooling 440sf, but 2 or three reviews say it will do more.

https://www.homedepot.com/p/LG-Elec...th-ENERGY-STAR-and-Remote-LT1016CER/311590768
 

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There is no substitute for a professional calculation but I can share some information.


I seriously doubt that will do the job. One of the 15-18000 btu ones that they sell might do the job. A better choice would be one of the 11-13000 in the main area and 5000 in the bedroom.


You will need a dedicated plug for any larger units and the one you showed may not work on some circuits as it pulls almost 9 amps. The larger units are probably 220.
 

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Sizing charts are extremely inaccurate, especially those for window/through the wall units.

I doubt you'll need more than 1 ton of cooling unless the climate is very hot. You should use a fan to push the air away from the unit and into the bedrooms, etc. Recirculation cuts efficiency/capacity.

Load calculation is required to size, i can't help you there, not knowing anything about mobile homes.
 

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Discussion Starter · #5 · (Edited)
Sizing charts are extremely inaccurate, especially those for window/through the wall units.

I doubt you'll need more than 1 ton of cooling unless the climate is very hot. You should use a fan to push the air away from the unit and into the bedrooms, etc. Recirculation cuts efficiency/capacity.

Load calculation is required to size, i can't help you there, not knowing anything about mobile homes.
This is a home I'll be selling soon, but I did that for a while in a 14 x 70. Worked well, thx. Also thinking about two separate units, one for bedroom and one for combined LR and Kitchen. Have to check circuit amp draws, and even a dedicated circuit for LR/kitchen area wouldn't be out of the question. New Eaton Cutler Hammer 100A panel. Existing gas kitchen range helps also.

Found a 6000 BTU unit by Hammacher Schlemmer/Lifetime Warranty for bedroom/120sf @379.95 and zero or 7.00 shipping if I can't pick it up. Haven't asked 'em yet.. They're only about 10 minutes from here.
Just noticed H-Schlemmer is a department store... thinking it was a distributor in or very close to an industrial park here.

https://www.hammacher.com/product/q...9?promo=search&cmp=cel&trigger=ac&query=quiet


Could do the LG 9800 BTU in the LR/kitchen area/300sf, circuit amps permitting.
 

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you left out the most important piece of required information - the location. What is the climate? How hot does it get?


I'm at 6000 ft elevation in Wyoming. Here a 5000 btu unit would be adequate. In Arizona or Georgia, not a chance that would be enough.
 

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considering you're selling, best to just slap in a 1 to 1.5 ton (12 to 18 000 btu) wall unit and call it done. i don't think ohio is that hot so 1 ton may do the job just fine.

don't do more than you have to.

is the circuit 120 or 240v? you'll be limited to 12 to 14k btu on 120v 15 amp circuit.
 

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Discussion Starter · #8 · (Edited)
you left out the most important piece of required information - the location. What is the climate? How hot does it get?

Middle to anywhere in the 90's and Ohio river is maybe 30-45 minutes driving.

I'm at 6000 ft elevation in Wyoming. Here a 5000 btu unit would be adequate. In Arizona or Georgia, not a chance that would be enough.
Yep I did, already have an e-mail message to H-Schlemmer this morning about it being a window unit/6000 BTU... if it can be wall mounted. Some window units can be wall mounted can't they?

I also just replied to user~, and here comes another one from him...
 

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Discussion Starter · #9 ·
considering you're selling, best to just slap in a 1 to 1.5 ton (12 to 18 000 btu) wall unit and call it done. i don't think ohio is that hot so 1 ton may do the job just fine.

don't do more than you have to.

is the circuit 120 or 240v? you'll be limited to 12 to 14k btu on 120v 15 amp circuit.
I believe you're right about the 1 ton. Remembering now several years back a somewhat larger unit with a new 1 ton cooling really well and comfortably, and didn't need a fan to reach the MBR at the end of the home.
 

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Discussion Starter · #10 · (Edited)
considering you're selling, best to just slap in a 1 to 1.5 ton (12 to 18 000 btu) wall unit and call it done. i don't think ohio is that hot so 1 ton may do the job just fine.

don't do more than you have to.

is the circuit 120 or 240v? you'll be limited to 12 to 14k btu on 120v 15 amp circuit.
Both units the LG 9800 BTU and the Hammacher Schlemmer 6000 are 120v.

This home is the one in the recent thread about the package unit's condenser fan position in the shroud and horizontal air flow immediately off the grill. Have't even checked the condenser coil for "plugged" yet, nor have installed the new fan motor yet. Concerned about this package unit needing pumped down/leaked check & recharged. Haven't learned how, don't have the equipment/tools for that and not sure I want it.
 

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see if there's a 220/240v circuit there already for a through the wall.

what makes you think the package unit has a refrigeration problem?
 

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Discussion Starter · #12 ·
see if there's a 220/240v circuit there already for a through the wall.

what makes you think the package unit has a refrigeration problem?
No 220v circuit in the wall.

I can't even be sure it was this particular unit, but the last one I remember checking last year had only air coming out of the suction line at guage, but soon as the rain stops here, I'll be installing the new condenser fan motor, then go at it again. But since I've always heard that 65° or higher temps is necessary for troubleshooting, forecast so far for that isn't until later next week. Will get back, and thx much for your help.
 

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yah with 120v circuit you can't get much more than 12k anyway.

what do you mean only air at the suction gauge?

if it's reading very low or zero there's no point of putting a new fan motor unless you want to fix the leak.
 
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