Reznor UDXC 45
#7 in GasFull review
A two car garage heater for buyers who value the longest parts warranty here.
Amazon $1,389$1,389
2.6/5
A three car garage heater from a commercial maker, for buyers who want Modine’s dealer support.
- 49,800 BTU/hHeat
- BothFuel
- NoThermostat
Check price at Amazon$1,324Check price at HVACDirect$1,204
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Sized for a three car garage
- 83% efficient with direct spark ignition
- 10 year heat exchanger warranty
Cons
- Needs a wall thermostat and venting kit, bought separately
- 2 year parts warranty
- Costs over twice as much per BTU as the Mr. Heater Big Maxx line
The Modine Hot Dawg HD family
Every Modine Hot Dawg HD model we rank, smallest first. Ratings compare each against its own fuel.
| Model | Heat | Rating | Price |
|---|---|---|---|
| Modine Hot Dawg HD30 | 24,900 BTU/h | 2.2/5 | $998.99 |
| Modine Hot Dawg HD45 | 37,350 BTU/h | 2.5/5 | $963 |
| Modine Hot Dawg HD60 (this one) | 49,800 BTU/h | 2.6/5 | $1,204 |
| Modine Hot Dawg HD75 | 62,250 BTU/h | 2.7/5 | $1,371 |
| Modine Hot Dawg HD125 | 102,500 BTU/h | 2.9/5 | $1,552 |
How it scores
The rating comes from 3 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.
Specifications
| Model number | HD60AS0121 |
|---|---|
| Heat | |
| Heat output | 49,800 BTU/h |
| Gas | Both |
| Efficiency | 83% |
| Venting | Power vented |
| Controls and build | |
| Thermostat | No |
| Remote or app | No |
| Electronic ignition | Yes |
| Weight | 92 lb |
| Warranty | 2 years |
Alternatives in this fuel
Modine Hot Dawg HD75
#8 in GasFull review
A large garage heater from Modine. Reznor’s UDXC 75 costs about the same with a longer parts warranty.
Amazon $1,371$1,371
Modine Hot Dawg HD45
#10 in GasFull review
A proven two car garage heater from a commercial heating maker. Cheaper options give similar heat.
Amazon $963$963
Compare
Compare the Modine Hot Dawg HD60 with any other garage heater →
More from Modine: every Modine product ranked.