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 is the better garage heater overall, rated 3.5 to 3.1. The Comfort Zone CZ230ER leads on controls. The Comfort Zone CZ220 costs $48.97 less ($96 vs $144.97).
Comfort Zone CZ220
#9 in ElectricFull review
A low cost hardwired heater for a one car garage or a small shop. It does the job with basic knob controls and a short warranty.
Amazon $96$96
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.
Which should you buy?
- Choose the Comfort Zone CZ230ER for controls (thermostat, digital display, remote or app vs thermostat).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every electric garage heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Comfort Zone CZ230ER | Comfort Zone CZ220 |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 40% | 81 $5.67 per 1,000 BTU ($144.97, 25,590 BTU/h) | 81 $5.63 per 1,000 BTU ($96, 17,065 BTU/h) |
| Controls 25% | 100 thermostat, digital display, remote or app | 50 thermostat |
| Warranty 35% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Comfort Zone CZ230ER | Comfort Zone CZ220 | |
|---|---|---|
| Heat | ||
| Heat output | 25,590 BTU/h | 17,065 BTU/h |
| Power | 7,500 W | 5,000 W |
| Voltage | 240 V | 240 V |
| Rated garage | 1,250 sq ft | - |
| Controls and build | ||
| Thermostat | Yes | Yes |
| Digital display | Yes | No |
| Remote or app | Yes | No |
| Warranty | 1 year | 1 year |