The Dometic DFSDH20111 is an 18,000 BTU compact RV furnace designed for reliable heating in travel trailers, fifth wheels, and motorhomes. This 12V DC furnace features patent-pending Hall Effect Sensor technology that eliminates moving ignition parts for debris-resistant operation and greater reliability. With its low-profile design and flexible mounting options, this furnace fits where space is limited while delivering powerful, efficient heat.

Key Features

• Patent-Pending Hall Effect Sensor: Eliminates moving ignition parts for debris-resistant operation and superior reliability in harsh RV environments
• On-Board Soft Start Technology: Reduces inrush current by 80% for quieter startups and fewer circuit breaker trips
• Superior Airflow Performance: Delivers 18-22% more airflow than leading competitors in ducted applications for faster, more even heating
• Seamless Tubular Heat Exchanger: One-piece construction provides efficient heat transfer and long-lasting durability
• Flexible Installation: Mounts horizontally or vertically to fit your RV's specific layout and space constraints
• Compact Low-Profile Design: 20"D x 7"H x 12"W footprint fits in tight spaces while delivering 18,000 BTU heating capacity

Technical Specifications

Heating Capacity	18,000 BTU/h
Voltage	12V DC
Rated Current	11.1 A
Fuel Type	Liquid Propane (LP Gas)
Product Dimensions	20"D x 7"H x 12"W
Net Weight	20.80 lbs
Installation Options	Horizontal or Vertical
Door Style	Doored Furnace
PNC Number	970335195
Certification	CSA Certified

Compatibility Information

PNC Number	Model Name
970335195	DFSDH20111

Frequently Asked Questions

What makes the Hall Effect Sensor better than traditional ignition systems?

The Hall Effect Sensor eliminates moving parts in the ignition system, making it far more resistant to debris, dust, and wear. This means more reliable starts in dusty camping conditions and fewer service calls over the life of your furnace.

Will this furnace work with my existing thermostat and ducting?

Yes, the DFSDH20111 is designed as a direct replacement for most small RV furnaces. It works with standard RV thermostats and connects to existing ductwork. The flexible horizontal or vertical mounting accommodates most RV furnace compartments.

How much power does this furnace draw from my RV batteries?

The furnace draws 11.1 amps at 12V DC during operation. The On-Board Soft Start feature reduces the initial power surge by 80%, which helps prevent tripping breakers and extends battery life during dry camping.

Is this furnace suitable for full-time RV living in cold climates?

Yes, the 18,000 BTU capacity combined with superior airflow performance makes this furnace well-suited for extended use in cold weather. The seamless tubular heat exchanger provides efficient, reliable heat transfer for consistent comfort even in freezing temperatures.

Why Buy from Elkhart RV Parts?

At Elkhart RV Parts, we specialize in hard-to-find Dometic replacement parts for RV owners who need reliable solutions fast. Located in Elkhart, Indiana — the RV capital of the world — we understand the urgency of getting your RV heating system back up and running. We stock genuine OEM Dometic parts and ship quickly so you can get back on the road or back to enjoying your RV lifestyle. Our expert support team knows these products inside and out and is here to help you find exactly what you need.