Comfort Zone CZ230ER
#2 in ElectricFull review
The best priced 7,500 W heater with a digital thermostat and remote, for a two car garage. The warranty is short.
Amazon $144.97$144.97
The Comfort Zone CZ230ER rates 3.5 among electric garage heaters; the Modine Hot Dawg HDS30 rates 2.2 among gas ones. The Comfort Zone CZ230ER costs $1,055.02 less ($144.97 vs $1,199.99).
Modine Hot Dawg HDS30
#13 in GasFull review
A sealed combustion heater for a small woodshop or a garage with fumes or dust in the air. Pay the premium only if you need that.
Amazon $1,199.99$1,199.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different fuel classes (electric and gas), and each is scored against the reference points for its own class, so a rating says how well each does among its own fuel peers. How we rank explains each factor.
| Factor weight | Comfort Zone CZ230ER | Modine Hot Dawg HDS30 |
|---|---|---|
| Overall rating | 3.5/5 | 2.2/5 |
| Value 40% | 81 $5.67 per 1,000 BTU ($144.97, 25,590 BTU/h) | 0 $48.19 per 1,000 BTU ($1,199.99, 24,900 BTU/h) |
| Controls 25% | 100 thermostat, digital display, remote or app | 40 electronic ignition |
| Warranty 35% | 0 1-year warranty | 25 2-year warranty |
Specifications
| Comfort Zone CZ230ER | Modine Hot Dawg HDS30 | |
|---|---|---|
| Heat | ||
| Heat output | 25,590 BTU/h | 24,900 BTU/h |
| Power | 7,500 W | - |
| Voltage | 240 V | - |
| Gas | - | Both |
| Efficiency | - | 83% |
| Venting | - | Direct vent |
| Rated garage | 1,250 sq ft | - |
| Controls and build | ||
| Thermostat | Yes | No |
| Digital display | Yes | - |
| Remote or app | Yes | No |
| Electronic ignition | - | Yes |
| Warranty | 1 year | 2 years |