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.
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 store 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
| Specification | Modine HD-Series | Sterling RF-Series | Comments |
|---|---|---|---|
| BTU Range | 30 – 125 MBH | 30 – 90 MBH | Modine covers more applications |
| Minimum Efficiency | 80% | 80% | Same non-condensing high efficiency |
| Blower Fan Units (HDB model only) |
60 – 125 MBH | Not Available | Modine covers more applications |
| Casing Paint | Polyester Powder | Wet Enamel | Modine units will look better longer |
| Quiet Swept Wing Fans | 100 and 125 MBH | Not Available | Larger Modine units are quieter |
| Heat Exchanger Gauge | 18 Gauge | 20 Gauge | Modine heat exchangers are heavier gauge |
| Optional Stainless Steel | Yes | Not Available | Modine covers more applications for corrosive environments |
| T.E. Fan Motor Standard | Yes | No | Modine motors are protected for longer life |
| Power Vented X-Changer Warranty (HDS and HDC models only) |
10 Years | 10 Years | Same 10 year heat exchanger warranty |
| Sep. Comb. X Changer Warranty (HDS & HDC models only |
10 Years | 5 Years | Modine separated combustion units warrantied longer |
| Component Warranty | 2 Years | 1 Year | Modine parts warrantied longer |
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