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Modine Hot Dawg® Heater - Model HD

225 total reviews

SKU: QC Part #20855+LP-100BTU | MFR # HD 100AS0121FBAN
Regular price $1,279 99
Sale price $1,279 99 Regular price
Sale Sold out
FREE SHIPPING on Modine Hot Dawg Heaters. If you're looking for a garage heater or a shop heater, Modine Hot Dawg heaters offer convenience and quality at a great price.
Gas Type
BTU
Enter install elevation (if above 2,100 ft.)
Ships within 2 Business Days

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Description
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More about Modine Hot Dawg® Heater - Model HD

Please inspect all units at the time of delivery & notify shipping company of any damage immediately. Shipping is included in the price of the heater for US orders (excludes Alaska, Hawaii and Puerto Rico). This offer is valid only for orders placed online. Free shipping is for the heater only. You will be charged shipping for parts and accessories. If you are purchasing a heater unit that will be installed at an elevation above 2,000 ft., please denote on the order. Modine has changed the process in how they deal with heaters installed at elevations above 2,000'. Modine no longer provides gas orifices to make the adjustment; instead, an adjustment is now made in the field on the unit's gas valve. For additional information, please see the document titled "High Altitude Kit Instructions" below in the Documents section. The Installation & Service Manual is located on the inside of the unit and is accessible by removing the side panel. NOTE: 100,000-125,000 BTU models do not include mounting brackets. These units feature 4 top threaded holes for mounting with 3/8" threaded rod or 3/8" eye bolts and chain.

An affordable way to heat your barn, garage, workshop, or warehouse, the HD Model Modine Hot Dawg Heater operates at an impressive 80% thermal efficiency.  Easy to install, the heater features a direct spark ignition, low-profile design, and quiet operation. The heater may be fueled with your choice of liquid propane or natural gas. Certified for residential, commercial, and industrial use.

All installation and service of the Modine Hot Dawg Garage and Shop Heaters should be performed by a qualified installation and service agency.

Features & Advantages

  • 80% thermal efficiency
  • Quiet operation
  • Choose from Natural Gas or Propane
  • Direct spark ignition
  • Low-profile design
  • Certified for residential, commercial & industrial use
  • Standard power exhaust simplifies side-wall or roof venting
  • Versatile design allows for right or left-hand controls and installation; gas, electrical & flue connections can be changed from one side to the other by simply flipping the Hot Dawg over; 30,000-75,000 BTU units only
  • Permanently-lubricated motor for trouble-free dependability
  • Full 10-year manufacturer warranty on heat exchanger
  • 3" vent - 30,000-75,000 BTU
  • 4" vent - 100,000-125,000 BTU
  • 115V/60Hz/1Ph
  • CSA Certified
  • Aluminized heat exchanger
  • Made in the USA
Unit Model # BTU
Input
BTU
Output
Gas Used Application Dimensions
L x W x H
Weight/Shipping
HD30A HD30AS0121 30,000 24,600 Propane 1-1 1/2 Car Garage 26.8"x 16.5" x 13.2" 67 lbs/FedEx Shippable
HD30A HD30AS0111 30,000 24,600 Natural Gas 1-1 1/2 Car Garage 26.8" x 16.5" x 13.2" 67 lbs/FedEx Shippable
HD45A HD45AS0121 45,000 36,900 Propane 2-2 1/2 Car Garage 26.8" x 16.5" x 13.2" 72 lbs./FedEx Shippable
HD45A HD45AS0111 45,000 36,900 Natural Gas 2-2 1/2 Car Garage 26.8" x 16.5" x 13.2" 72 lbs./FedEx Shippable
HD60A HD60AS0121 60,000 49,200 Propane 3-3 1/2 Car Garage 26.8" x 16.5" x 19" 92 lbs./FedEx Shippable
HD60A HD60AS0111 60,000 49,200 Natural Gas 3-3 1/2 Car Garage 26.8" x 16.5" x 19" 92 lbs./FedEx Shippable
HD75A HD75AS0121 75,000 61,500 Propane Shop-Large Garage 26.8" x 16.5" x 19" 97 lbs./Freight Only
HD75A HD75AS0111 75,000 61,500 Natural Gas Shop-Large Garage 26.8" x 16.5" x 19" 97 lbs./Freight Only
HD100A HD100AS0121 100,000 82,000 Propane Shop-Large Garage 35.5" x 22" x 21.5" 143 lbs./Freight Only
HD100A HD100AS0111 100,000 82,000 Natural Gas Shop-Large Garage 35.5" x 22" x 21.5" 143 lbs./Freight Only
HD125A HD125AS0121 125,000 102,500 Propane Shop-Large Garage 35.5" x 22" x 21.5" 143 lbs./Freight Only
HD125A HD125AS0111 125,000 102,500 Natural Gas Shop-Large Garage 35.5" x 22" x 21.5" 143 lbs./Freight Only

**HD75 units can ship via parcel to certain states, however, we recommend shipping this unit via Motor Freight.  Call for details.

Additional Specifications

Unit CFM Air Temp Rise Mounting Height Max Heat Throw Amps Vent Size
HD30A 505 44° 10' 25' 3.75 3"
HD45A 720 46° 10' 27' 3.75 3"
HD60A 990 45° 12' 36' 3.3 3"
HD75A 1,160 48° 14' 38' 3.3 3"
HD100A 1,490 50° 12' 42' 5.05 4"
HD125A 1,980 47° 16' 56' 4.75 4"

Venting Components

  HD30 - HD75 HD100 - HD125
  3" Pipe 4" Pipe
Flue Adapter QC Part #21316 QC Part #21317
Increaser QC Part #21307 N/A
5' Pipe QC Part #21300 QC Part #21301
Thimble QC Part #21312 QC Part #21313
Vent Cap QC Part #21314 QC Part #21315
  Optional
Tee QC Part #21308 QC Part #21309
T-Cap QC Part #21310 QC Part #21311
Elbow QC Part #21305 QC Part #21306

Additional Information

  • HD100 & HD125 models require a 4" pipe
  • The HD30-HD75 models typically use 3" pipe. They can use 4" pipe, but only when an increaser, QC Part #21307 is used as well
  • Check with a local building inspector to determine if your structure is classified as residential or commercial
  • All installation and service of the Modine Hot Dawg Garage and Shop Heaters should be performed by a qualified installation and service agency
  • When ordering parts for Modine Hot Dawg Heaters, please have the following ready: Model Number, Serial Number, Power Code and Control Code. These can be found on the serial plate on the inside of the side panel
  • The Installation & Service Manual is located on the inside of the unit and is accessible by removing the side panel.
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Customer Reviews

Based on 225 reviews
86%
(193)
10%
(23)
1%
(3)
1%
(3)
1%
(3)
C
Craig W
Modine Hot dog 45,000 btu propane

Ordered from QC supply, I was given a 2-3 week delivery date and I got it in 3 business days. Incredible, everything was in good condition.
It was easy to install, except for I have 11ft ceiling. Started right up after gas and electric was hooked up. Heats my 900+ square foot garage to 65 degrees from 40 degrees in about 1 1/2 hours.
I like that Modine is made in the USA, not a cheap China brand.
Didn't get to use the heater much since I'm at the end of winter.
Thanks QC Supply! Great price on what I hope is a great heater for years to come!

Craig in Minnesota
4/26/24

S
Sandi
Very Fast delivery

The heater arrived very quickly after ordering. The installation was finished in an afternoon. Heater has been working well and is quieter than expected. Very pleased with product and QC Supply.

C
Coach Joe
Garage Heater

Unit arrived quickly in perfect shape. Best price I could find, and free shipping. All set up to try, waiting for my natural gas company to install a new service meter for me. Bought on the reviews read on here.

T
Tim
Excellent Heater

45,000btu heater is replacing a 50,000 btu big maxx model that I was having problems with. I was concerned that being less btu's would be a problem but I think that it actually heats better. Quiet operation just makes it all the better. Please watch the video's available because this unit does need to be set up at the time of install.

A
Arafat
Good Product

Very efficient.

Customer Reviews

Based on 225 reviews
86%
(193)
10%
(23)
1%
(3)
1%
(3)
1%
(3)
C
Craig W
Modine Hot dog 45,000 btu propane

Ordered from QC supply, I was given a 2-3 week delivery date and I got it in 3 business days. Incredible, everything was in good condition.
It was easy to install, except for I have 11ft ceiling. Started right up after gas and electric was hooked up. Heats my 900+ square foot garage to 65 degrees from 40 degrees in about 1 1/2 hours.
I like that Modine is made in the USA, not a cheap China brand.
Didn't get to use the heater much since I'm at the end of winter.
Thanks QC Supply! Great price on what I hope is a great heater for years to come!

Craig in Minnesota
4/26/24

S
Sandi
Very Fast delivery

The heater arrived very quickly after ordering. The installation was finished in an afternoon. Heater has been working well and is quieter than expected. Very pleased with product and QC Supply.

C
Coach Joe
Garage Heater

Unit arrived quickly in perfect shape. Best price I could find, and free shipping. All set up to try, waiting for my natural gas company to install a new service meter for me. Bought on the reviews read on here.

T
Tim
Excellent Heater

45,000btu heater is replacing a 50,000 btu big maxx model that I was having problems with. I was concerned that being less btu's would be a problem but I think that it actually heats better. Quiet operation just makes it all the better. Please watch the video's available because this unit does need to be set up at the time of install.

A
Arafat
Good Product

Very efficient.

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