Atwood Excalibur Furnace 8531 IV 30,000 BTU 8.2 Amp

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Manufacturer's Number: 35524 37636 32827 37631 32684 35443
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Efficient and quiet! Features new blower assembly with increased airflow. Compact size installs both horizontally and vertically for better space utilization. All controls and crucial components are accessible from outside your RV for easy servicing. Access door sold separately. 1/box.

***This product is being replaced with Atwood's new 35443. Model DFMD30111.
Approximate Casing Dimensions 16 1/2" W X 7" H X 20" D. BTU Input 30,000
BTU Output 22,800
Amperage 7.5
Watts 90
Power Supply (Volt DC) 12

**Picture may not reflect actual product
WARNING: This product may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit

Product Questions & Answers:

  1. I need to replace my II model. Will this model IV be ok? The size, amps, etc. all seem to be the same. By Tom
    • Answer: Yes, it would be a direct replacement for your model.
  2. Is the 8531 IV a direct replacement for mod # 8531-11? By Vick
    • Answer: Yes, it is.