Recommended Replacement AC for a Dometic Duo Therm
Updated 01/19/2026 | Published 07/31/2024
Question:
I am replacing an older Dometic Duo-Therm rooftop AC. This has a five button thermostat. It is a fully ducted system. Meaning, there is no access to mount it from the inside. This is a top down mount. Which ACs can I replace this with? That is compatible with the Duo therm five thermostat and mount from the top?
asked by: Phil U
0
Expert Reply:
Phil, for your Dometic Duo-Therm you can use the Advent Air RV Air Conditioner # ACM135. This is a direct replacement for your current unit, has a 13.5K Btu per hour heating capacity, and will plug into your existing thermostat
expert reply by:
Bryce D
0
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Kate F.
1/19/2026
Hey Phil, how did the swap go with the Advent Air rooftop AC for your Duo-Therm setup? It’d be great to know if it connected smoothly with your five-button thermostat. Your update could make it easier for others replacing the same system.