Can I split the airflow from the Air 4D into two rooms of my toy hauler?
Published 08/11/2025
Question:
We have a toy hauler with a garage space and living area. Could the Air 4D heat both zones in my trailer?
asked by: Kyle A
Expert Reply:
Yes! The Air 4D # AU96MR is built for larger areas, even if there are multiple ducts. Just use a Y-splitter (sold separately) on the 90mm ducting, and make sure at least one vent is non-closeable to prevent pressure buildup.
If your duct runs are long, insulated ducting helps maintain heat.
Keep in mind, it's not designed to work with factory ducting on travel trailers since they would be a totally different size more than likely.
What type of toy hauler is this going in?
Product Page this Question was Asked From
Autoterm Air 4D Diesel Heater for RVs - 12v
- RV Heaters
- Diesel Heater
- 12 Volts
- Interior Heating
- 5th Wheel
- Camper Van
- Motorhome
- Truck Bed Camper
- Autoterm
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: What Coil SumoSprings Custom Helper Springs are the Right Fit for My 2024 Jeep Gladiator Sport S Max
- Q&A: Can I swap out an old Chinese diesel heater with the Air 4D?
- Q&A: Is the Air 4D diesel heater too much for a standard van build?
- Q&A: How Tall Above Jacks are Happijac Jack Motors
- Q&A: Coil SumoSprings for 2023 Toyota Sienna AWD
- Q&A: Can Autoterm Air 2D Diesel Heater for RVs Be Installed In Slide-In Camper
- Q&A: Can I tie into an existing diesel tank, or do I need a separate one for AutoTerm Air 2D RV Heater?
- Article: Pewag Snow Tire Chains
- Article: What are the Common Types of Propane Fittings Used on RVs?
- Article: How (and Where) to Connect an RV Propane Grill
- Article: 2 Steps for Finding the Right Weight Distribution Hitch Size
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Thank you!