Description
Modine Hot Dawg Garage Heater – 30K BTU/Direct Spark Ignition/LP/Single Stage w/Aluminized Steel Heat Exchanger – HD30AS0121
Features
- Made in the USA
- Low profile, lightweight design easily installs 1” from ceiling with only two angle brackets (included)
- Field fuel conversion kits available
- Finger-proof fan guards on all units
- Reduce the need for maintenance with the permanently lubricated motor
- 100% shut-off with continuous retry to allow for safe ignition in the event the unit doesn’t light on the first try
- Right or left hand controls available on 30-75 units by rotating unit 180 degrees
- Power vented model simplifies side-wall or roof venting with small-diameter vent pipe
- Draws combustion air from inside the workspace
- 3″ vent connection
- Liquid Propane
- 30,000 BTU
- Direct spark ignition
- Single stage – on/off operation
- Aluminized steel heat exchanger
What our Experts Think
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30,000 BTU Output: Ideal for heating small garages, workshops, or utility spaces efficiently.
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Direct Spark Ignition: Reliable and efficient ignition system for consistent startup and operation.
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Aluminized Steel Heat Exchanger: Durable construction designed for long-lasting performance.
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Liquid Propane (LP) Fuel: Optimized for propane heating applications.
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Single-Stage Operation: Provides steady, straightforward heat delivery for everyday use.
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Compact & Practical Design: Space-saving installation suitable for ceilings or walls.
Q&A
Q: What is the Modine HD30AS0121?
A: A 30,000 BTU propane‑fired garage heater designed for reliable, efficient heating in small garages and workspaces.
Q: What fuel and ignition does it use?
A: Liquid propane (LP) with direct spark ignition for fast, dependable starts.
Q: What type of heat exchanger does it have?
A: Aluminized steel for durability and long‑lasting performance.
Q: Where is it ideal?
A: Best for small garages, workshops, sheds, and similar spaces needing consistent heat.
Q: Why choose it?
A: Compact, efficient design with durable construction and dependable propane heating for everyday use.
Maintenance Tips
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Clean the aluminized steel heat exchanger and burner regularly for efficient operation.
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Inspect propane connections and ignition system periodically for leaks or proper function.
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Keep the area around the heater free of dust, debris, and obstructions.
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Test safety controls periodically to ensure reliable and safe performance.
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Schedule annual professional servicing for peak efficiency and longevity.
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Follow manufacturer guidelines for installation, operation, and maintenance.






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