Model HD Hot Dawg® Unit Heaters: For applications requiring a low profile unit. The Hot Dawg may be installed in residential, greenhouse or commercial applications just one inch below the ceiling. Don’t be fooled by cheap Chinese manufactured heaters currently flooding the market. Since 1916, Modine has provided quality heating solutions that are made in America to the highest possible standards. The superior quality matched with the following features makes the Hot Dawg unit heater an easy choice for a variety of applications.
Standard Features
- Made in the USA
- Certified for residential, agricultural and industrial use.
- Quiet operation.
- Attractive low-profile design and neutral paint scheme assure that Hot Dawg will blend inconspicuously into any garage decor.
- Durable polyester-powder paint maintains life-long good looks.
- Standard power exhaust simplifies side-wall or roof venting with small-diameter vent pipe.
- Versatile design allows for right or left-hand piping and installation. Gas, electrical and flue connections can be changed from one side to the other by simply flipping the Hot Dawg over.
- Lightweight, easily installs from ceiling with only 2 angle brackets (included).
- Installs quickly and easily with field wiring connections and knockouts for quick access to gas and electricity.
- Designed for natural or propane gas.
- Sealed, permanently-lubricated motor for trouble-free dependability.
- Full 10-year warranty on heat exchanger.
- 24,000 thru 75,0000 (HD25A – HD75A) BTUH Heaters will include ceiling mounting brackets. Ceiling mounting brackets for the 100,000 & 125,000 (HD100A, HD125A) BTUH Heaters must be purchased separately.
Dimensions and Diagrams
Dimensions, Diagrams and Specifications (PDF)
Modine Greenhouse Heating Solutions (PDF)
Wiring Diagrams (PDF)
Performance Specifications
| Model | Application | Input BTUH | Output BTUH | Vent Size | Weight (lbs) |
|---|---|---|---|---|---|
| HD30 | 1 to 1-1/2 Car Garage or up to 250 SF Greenhouse. |
30,000 | 24,600 | Requires 3″ Vent Pipe | 55 |
| HD45 | 2 to 2-1/2 Car Garage or up to 350 SF Greenhouse. |
45,000 | 36,900 | Requires 3″ Vent Pipe | 60 |
| HD60 | 3 to 3-1/2 Car Garage or up to 550 SF Greenhouse. |
60,000 | 49,200 | Requires 3″ Vent Pipe | 80 |
| HD75 | Large Garage or up to 650 SF Greenhouse. |
75,000 | 61,500 | Requires 3″ Vent Pipe | 85 |
| HD100 | Up to 1000 SF. | 100,000 | 82,000 | Requires 4″ Vent Pipe | 125 |
| HD125 | Up to 1200 SF. | 125,000 | 102,500 | Requires 4″ Vent Pipe | 125 |
Installation
Many of our customers happily report that purchasing a Hot Dawg heater from the Greenhouse Megastore helped them save 50% or more off the unit price received from a local HVAC installer. However, for safety reasons and to minimize installation problems Modine strongly recommends having a licensed HVAC technician install your Hot Dawg heater. Although we are happy to offer limited technical support for your Hot Dawg purchase, we can NOT install the heater for you over the phone nor are we able to troubleshoot problems you may experience if you choose to install the heater yourself. By purchasing this heater from us, you accept sole responsibility for installation and agree to abide by Modine’s limited Warranty
Troubleshooting
Based on our experience in selling Modine Hot Dawg Heaters, we have written up a troubleshooting guide that deals with the issues we most commonly hear from customers. – Troubleshoot a Modine Hot Dawg
If you still need help, check out Modine’s own troubleshooting guide.
Comparison Chart
Modine HD-Series vs. Sterling RF-Series
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(HDB model only)
(HDS and HDC models only)
(HDS & HDC models only
Additional Information
Manual
Residential Owners Manual (PDF)
Warranty
Modine offers a 10 year limited warranty on the heat exchanger and a 2 year limited warranty on all other components. Please note this warranty covers parts only and does not cover any labor costs associated with repairing the heater. View Warranty (PDF)
Product Video
Heater Warranty and Return Policy
It is the customer’s responsibility to carefully inspect heaters for damage before accepting delivery since heaters are usually not returnable once delivery is accepted. Obviously damaged heaters should be refused and Greenhouse Megastore customer service contacted to make arrangements for a replacement unit. Once delivery is accepted Greenhouse Megastore will gladly provide replacement parts under the manufacturer’s warranty to repair damaged or defective heaters; however this warranty does not include any labor costs associated with installing these parts. Warranty issues should be diagnosed by a certified HVAC technician since parts deemed not to be defective by the manufacturer are not available for credit back to the customer. Specific warranty policies vary by manufacturer but typically cover replacement parts as indicated above up to one year after purchase. Please contact Greenhouse Megastore customer service if you have any questions about the warranty for your specific heater.
Shipping
This item ships via Motor Freight Carrier – almost anywhere in the Contiguous United States
Motor Freight Requirements
- The shipment must be delivered to a business or residence (a PO Box is invalid)
- The delivery address must be able to accommodate a tractor/trailer as much as 70′ in length
- Someone must be present to receive and unload the shipment from the truck
- Shipments and/or locations requiring a lift gate, inside delivery, and/or with limited access may incur additional charges by the carrier
Please contact Greenhouse Megastore Customer Service at 1-888-281-9337 if you have any questions about delivery to your specific address so we can ensure the smoothest delivery possible!
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