Mini split recommendations - Printable Version

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Mini split recommendations - rvguy - 05-15-2026

So again one of the scs units has failed. Tired of fixin it so I think it is time to install a mini split. I have read several posts on the website about ductless, size, mounting, fabricating, single zone, dual zone, etc.
I am trying to get a recommendation on which is the easiest, cost effective replacement. my main concern is the basement ac unit that cools the front of the unit. 

Question. Can i install 1 minisplit to run the entire coach and tie it into the original ductwork ? or is it better to have a wall mounted registers in 2 areas ?  We just want the coach cold everywhere.
Will a 24000 btu cool the entire coach ? We live in the dallas ft worth area and it get hot..
will the unit run off existing wiring and breakers in coach ? 
Any help would be appreciated.   Jack I know you have done a few of these, maybe you can shead some light on it for me

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RE: Mini split recommendations - Jack Houpe - 05-15-2026

Adam I don't think 2 ton in Dallas will keep your coach cool enough for your pleasure with slides. There is no easy way to make either high static ducted unit work without a lot of heat and air ductwork or pulling the lines and mounting the inside evaporators which is my choice. LG is what I have been using but nothing against anything that will fit and meet your needs, I do know LG makes a 24000 BTU 3 zone outdoor unit that will fit in your bay on one side but I would use zone 1 and zone 2 with two 12000 BTU indoor evaporators in the front and put another 12000 BTU outdoor unit on the other side of the bay and run it all the way back to the bedroom indoor evaporator, 36000 BTU should do the trick using inside evaporators in your location even a 9000 BTU in the bedroom would be enough but the cost is about the same as 1the 12000 unit so go bigger. If you decide to make your own plenums and tie into the existing ductwork I would go no less the one 36000 BTU outdoor unit and a high static (lots of cfm) ducted evaporator to tie into the plenum feeding the existing ductwork. You will have some friction loss due to the existing ductwork and some temp loss but would be far better than what you have now. Inverter units are way better than anything out there.

Send me a message and I'll send you my phone number if you have questions or if your in the area I'll show you what we have done and is still working now for 4 years. Dallas is about 5 hours from me.

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RE: Mini split recommendations - pairodice - 05-15-2026

Jack could you add an inline duct fan to the mini-split between the condenser (outside in the bay) and the evaporator/fan (in the coach) to make the air move more? Just a thought …

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RE: Mini split recommendations - Jack Houpe - 05-15-2026

I'm a electronic tech all I have to offer in HVAC is experience. Never considered that idea. Having a high static unit would do the same.

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