Modine Hot Dawg Garage Heater - 125K BTU/Direct Spark Ignition/LP/Two Stage w/Stainless Steel Heat Exchanger
Features
- Made in the USA
- Low profile, lightweight design easily installs 1” from ceiling with only two angle brackets (sold separately)
- 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
- Power vented model simplifies side-wall or roof venting with small-diameter vent pipe
- Draws combustion air from inside the workspace
- 4" vent connection
- Liquid Propane
- 125,000 BTU
- Direct spark ignition
- Two stage - allows for firing rate of 50% and 100% of full rated input
- Stainless steel heat exchanger
Specifications
| Fuel Type |
Propane |
| Control Type |
Electronic/IPI |
| Color/Finish |
Gray |
| Size |
35.5"W x 20.5"T x 31"D |
What Our Experts Think
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Versatile Heating Power: 125,000 BTUs with a two-stage operation for improved efficiency and comfort.
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Direct Spark Ignition: Ensures fast, reliable startups with minimal energy waste.
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Propane-Powered (LP): Ideal for locations without natural gas access, offering consistent heating.
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Stainless Steel Heat Exchanger: Corrosion-resistant for enhanced durability in demanding environments.
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Two-Stage Operation: Adjusts heating output based on demand, reducing energy consumption and improving efficiency.
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Compact, Ceiling-Mount Design: Saves floor space and allows for flexible installation in garages and workshops.
Q&A
Q: What is the advantage of a two-stage heater?
A: A two-stage heater operates at a lower BTU level when full power isn’t needed, improving fuel efficiency, reducing temperature fluctuations, and enhancing comfort.
Q: What type of ignition does this heater use?
A: It uses a direct spark ignition (DSI) system, eliminating the need for a standing pilot light and ensuring dependable operation.
Q: How large of a space can this heater warm?
A: It can effectively heat garages, workshops, and small commercial spaces up to approximately 6,250 sq. ft., depending on insulation and layout.
Q: Is proper ventilation required?
A: Yes, professional installation with adequate venting is necessary for safe operation.
Q: Is this heater energy-efficient?
A: Yes, the two-stage functionality optimizes propane usage, reducing fuel waste while maintaining consistent heat output.
Maintenance Tips
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Clean Burners Regularly – Remove dust and debris to ensure efficient combustion and reliable ignition.
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Inspect Gas Lines & Connections – Check for leaks and secure all fittings for safe operation.
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Keep Air Intake & Exhaust Vents Clear – Prevent blockages to maintain proper airflow and avoid overheating.
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Maintain Stainless Steel Heat Exchanger – Clean periodically to enhance heat transfer and longevity.
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Test Direct Spark Ignition – Ensure proper function to prevent startup failures.
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Check & Adjust Two-Stage Settings – Optimize low/high stage operation for efficiency and comfort.
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Verify Thermostat Accuracy – Ensure proper settings for consistent temperature control.
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Annual Professional Inspection – Schedule a yearly checkup for peak performance and safety.
