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Modine HD125SS0121
Modine HD125SS0121
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Modine Hot Dawg HD - 125,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger

Model:

HD125SS0121

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$1,615.00
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Lift Gate
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
In-Stock
Ships Monday, Mar 31st
Shipping to43085
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$270 / Month
Suggested monthly payments with 6 month financing.
Modine Hot Dawg HD - 125,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Modine Hot Dawg HD - 125,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Model: HD125SS0121
$1,615.00
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Features
Specifications
Reviews
Product Q&A
How-To Articles
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Features

    The Modine name has become synonymous with quality unit heaters in millions of homes and workshops all across the world. The HD125 is no exception to this rule, with sound engineering and reliability to last decades on end. Field wiring connections and electrical knockouts allow the HD125 to be installed nearly anywhere, while it's quiet operation and a natural, neutral coloring allow it to blend in seamlessly in any location.
  • Hush-Puppy Quiet Operation
  • The HD125 is incredibly quiet during operation. This allows the heater to be inconspicuous yet effective at all times - it will not distract you from your work.
  • Low Profile Design
  • The HD125 has an incredibly low profile design, measuring in at a height of only 20.5 inches. It can be mounted with a one inch clearance from the ceiling on only two angle brackets, keeping the unit heater out of your way.
  • Stainless Steel Heat Exchanger
  • The stainless steel heat exchanger has incredible corrosion resistance, high heat transfer and is protected by a full 10 year warranty by Modine.
  • Electric Knockouts
  • Electric wiring knockouts and field wiring connections on the HD125 keep installation costs low and save time during both installation and maintenance for your contractor by simplifing all required electrical work.
  • Permanently Lubricated Motor
  • The motor on the HD125 has a permanent, long lasting lubricant straight from the factory. This means that the motor never has to be oiled, reducing maintenance costs, general wear and tear, and operational noise.
  • Power Venting System
  • The power venting system quickly and efficiently brings flue exhaust from the unit heater to the outdoors, and requires minimal installation labor. This keeps installation related costs as low as possible.
  • Baked Polyester Paint
  • The HD125 features a neutral colored baked on polyester paint, providing excellent corrosion resistance and durability while blending in with a wide variety of environments.
  • Modine Installation
  • Installation by a professional installer is required by the manufacturer.
  • Finger Proof Fan Guard
  • This model features a Finger Proof Fan Guard standard.
  • Product Note
    These alternate power configurations are available for this item:
    • 208V/1Ph/60Hz
    • 230V/1Ph/60Hz
    • 208V/3Ph/60Hz
    • 230V/3Ph/60Hz
    • 460V/3Ph/60Hz
    • 575V/3Ph/60Hz
    These alternate power configurations require unique step-down transformers for proper operation. This series of unit heaters is also available with a two stage direct spark ignition. For more information, call our sales department at (866) 554-HEAT (4328).
California residents see
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
For more information go to: www.p65Warnings.ca.gov

Specifications

HD125SS0121
specs product image PID-48420
Overview
Product Category
Unit Heater
UPC
46629533239
General Information
Product Line
Hot Dawg HD
Product Category
Unit Heater
Heat Exchanger Material
Stainless Steel
Fuel Type Learn More
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Liquid Propane
Vent Type Learn More
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Power Vent
Configuration Learn More
Configuration
Orientation describes the direction that air will flow through a piece of equipment. (e.g. air will flow horizontally through a "Horizontal" unit heater.) Most equipment will only function properly if installed in the proper orientation.
Horizontal
Gas Conversion Kit
Available
Performance
Heating Capacity
102500 BTU
Maximum Input Capacity Learn More
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
125000 BTU
Thermal Efficiency
80 %
Air Throw
56 Feet
Maximum Air Flow
1980 CFM
Electrical Data
Voltage
115 Volts
Phase
1
Frequency
60 Hz
Dimensions
Flue Connection Size
4 Inches
Gas Piping Diameter
1/2 Inch
Product Height
20 1/2 Inches
Product Width
35 1/2 Inches
Product Depth
31 Inches
Product Weight
125 Pounds
Shipping Weight
125 Pounds
Certifications
Country of Origin
United States
ETL Listed
Yes
CSA Listed
Yes
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years
Heat Exchanger Warranty
10 Years

Reviews

(20)
Modine HD125SS0121 Reviews & Ratings
Customer Photos and Videos
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Customer Rating
5.00
(20 Ratings)
5
(20)
4
(0)
3
(0)
2
(0)
1
(0)
Verified Buyer
Verified Buyer
Model HD125SS0121
By Alan G 
Illinois
Purchased 11/06/2024 | 
Review Posted 12/02/2024 
We are very pleased with this unit. It does exactly what we wanted. Arrived quickly. Performs as expected. We are happy with the product.
Alan G Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
Easy To Use, Price, I39d Buy It Again
Cons:
None
Verified Buyer
Verified Buyer
This furnace is great way to heat pool barns
By James R. 
New Boston, Michigan
Purchased 02/05/2020 | 
Review Posted 04/11/2020 
It can heat my pool barn 30 Degrees to 70 degrees in 20 minutes.
James R. Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HD75AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Love this heater very easy installation.
By Vincent D. 
south range, Wisconsin
Purchased 03/18/2020 | 
Review Posted 04/09/2020 
Was easy to install and works as intended.
Vincent D. Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HD125AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
icon-review-marker
Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Awesome, awesome, awesome that’s all I can say about this produc
By David S. 
Jewett City, Connecticut
Purchased 11/18/2019 | 
Review Posted 01/02/2020 
Fantastic
David S. Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HD100AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Very well built
By John G 
Riverton, Illinois
Purchased 02/25/2019 | 
Review Posted 03/20/2019 
I researched for weeks for a shop heater. When I found the Modine and read the review and the history of the company I was sold. Heater was delivered on time no damage to the unit. As far as the heater it woks great. My shop is 25x45 and 18’ ceilings with mostly r-11 insulation it usually takes 30 mins to raise it from 30 degrees to 65 I highly recommend.
John G Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HD100AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
I like it
By Luis J 
plainfield, Wisconsin
Purchased 12/26/2018 | 
Review Posted 02/08/2019 
So far its been working really nice, I hope it stays like that for a long time. I would definitely recommend this product.
Luis J Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HD125AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
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Value
4/5
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Verified Buyer
Verified Buyer
Well satisfied
By Tyler S 
970A Highway 20, Louisiana
Purchased 01/15/2019 | 
Review Posted 02/06/2019 
I am very well satisfied with the heater. It’s much quieter than a heater I purchased a while back and it seems to heat much better even though it’s the same BTU rating.
Tyler S Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HDS125AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Great unit for heating a shop
By Jerrold W 
Farmington, Minnesota
Purchased 11/27/2018 | 
Review Posted 12/21/2018 
I have had the 60K HDS unit installed in my wood shop for just over a week now. It is working great. The area I am heating is 25 x 24 with 12 ft ceiling. We have had temps under 20F and it maintains 50 easily, hardly ever running. It can also get it up to 60 quickly when I am working in the shop.
Jerrold W Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HDS60AS0111.
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Excellent product and service
By Allan G 
Bandera, Texas
Purchased 11/13/2018 | 
Review Posted 12/17/2018 
We have a metal building with no insulation. In South Texas our winters are basically in the 40's and 50's with occasional 20's to 30's. Our heater warms it up quickly where we can work in short sleeves. If I would insulate, then I'm sure it wouldn't run very much. Can't speak to the fuel consumption as we are on propane and it was just filled. Will update later. This appears to be a 5-star product.
Allan G Recommends This
What's a Related Review? Learn More
Related Reviews
*Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.
This review was originally written for the HD100AS0121.
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Product worked very well in my garage
By Jim K. 
3606 E 157th Ave, Hebron, IN 4, Indiana
Purchased 11/20/2017 | 
Review Posted 04/29/2018 
I have a 2 car garage heated by a direct vent Williams furnace. The pilot light kept going out even after I changed the thermocouple. This was a 50,000 BTU furnace and took over 2 hours to raise the garage (very well insulated) temperature to 70 degrees. I decided to purchase a new furnace with higher BTU rating to heat the garage quicker. I compared furnaces from other manufacturers and found this Modine furnace would work the best. It is 20-1/2 inches tall and I was able to mount at the top of the garage 9 foot ceiling leaving more than enough clearance so I could walk under it without hitting my head. Best of all, it is 125,000 BTU and it heats the garage from 40 degrees to 70 degrees in less than 15 minutes. Needless to say, I am very satisfied with its performance. I installed the furnace myself and the instructions were very good and easy to follow. I highly recommend it.
Jim K. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
Durable, Features, Price, I'd Buy It Again

Product Q&A

(3)
Expert avatar photo
Product Questions Answered by Ken, the eComfort Product Expert
Can I connect the 3" flue to an existing 4" roof vent?
William D 
from New Jersey 
September 04, 2017
What are typical installation costs for a Modine Hot Dawg heater?
Bob 
from Pennsylvania 
November 20, 2015
When mounting near the ceiling of a 12' high shop, does the unit need to be mounted angled down towards the floor to get heat at floor level?
Mike 
from Oklahoma 
October 17, 2015

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Manuals

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Modine Hot Dawg HD - 125,000 BTU - Unit Heater - LP - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger
Modine HD125SS0121
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