What Is the Best RV Air Conditioner for My Keystone in 100 Degree Heat?

Updated 09/24/2026 | Published 07/20/2026

Question:

Good afternoon, I have a 2005 Keystone Outback Sydney Edition. My unit has the Carrier Air V A/C system. its time for a replacement. Although, I believe I can handle re-wiring the furnace to a wall mounted t-stat, Id like to know if there are anymore plug and play options out there as I have heard the advent system is no longer an option. If I need to go to a stand along A/C system, I need one that is efficient and cools well as it gets 100+ where I live constantly. My system is a ducted system. What options do I have and what added parts will I need with whatever system you mention. Thank you

asked by: Joshua M

Expert Reply:

Hello Joshua,

Thanks for writing in.

You're right, the old Advent plug-and-play replacement for the Carrier Air V systems is no longer available. All new RV air conditioners have also switched over to the newer R32 refrigerant, which is more efficient than the older refrigerants your Carrier system used. Since Carrier has been out of the RV A/C market for quite a while now, replacing the entire system is the way to go.

Since you mentioned you camp where it's over 100 degrees on a regular basis, you'll need the Furrion Chill Cube Variable Speed RV AC System w/ ADB & Remote - 18K Btu - Ducted - R32 # FR99TD. It has become one of my favorite RV air conditioners. The variable-speed compressor ramps up and down as needed instead of constantly cycling on and off, so it cools the RV down faster, maintains a much more consistent temperature, and uses less power than a traditional fixed-speed unit.

The # FR99TD comes with everything you'll need for a complete replacement, including the rooftop unit, air distribution box, and the Follow Me remote thermostat. This is a great setup because you can leave your existing wall thermostat in place to continue controlling your furnace, while the Follow Me remote controls the air conditioner. Since your Carrier controls won't communicate with a modern air conditioner, this makes for a clean, straightforward installation without having to rewire your furnace.

You will not regret this swap!

Where are you located with those hot temperatures? I grew up in the Mojave desert in California, I now live in Missouri where the humidity is no joke. I miss those hot 110 no humidity desert days =)

expert reply by: Kate F

Joshua M.

7/21/2026

I am in paicines, ca. Temps are regularly 95+ and easily hit 110. We hit 117 last year.

Kate F.

7/22/2026

@JoshuaM That is a hot one! Back in the late 80's/early 90's, it got hot like that in LA County, I remember having to go outside to keep cooling down our horses, the horses were more important than the drought. This unit will definitely be able to keep you cool in those harsh temps, and don't forget.... drink plenty of water =)

Joshua

8/3/2026

@KateF What sort of power draw would I be looking at? I believe I have semi weak shore power

Kate F.

8/3/2026

@Joshua The Furrion Chill Cube is one of the best options if you have weak shore power. At full output, it draws up to 15.8 amps, which is similar to many traditional RV air conditioners. The difference is that it uses a variable-speed inverter compressor with a built-in soft start, so it has less than a 5-amp startup surge and typically runs at a lower power level once your RV reaches the desired temperature. That makes it much easier on weak shore power than a conventional air conditioner, which has a large startup surge every time the compressor cycles on.