Comfort Zone CZ230ER vs Comfort Zone CZQTV5M
Comfort Zone CZ230ER
The short answer
Comfort Zone CZ230ER comes out ahead overall with 7.0/10 against 6.7/10 for the Comfort Zone CZQTV5M. Comfort Zone CZ230ER is stronger on safety, heating performance, bedroom usability and value. Comfort Zone CZQTV5M is stronger on noise & sleep-friendliness. At current verified prices, the Comfort Zone CZQTV5M costs about $85.72 less.
- Choose the Comfort Zone CZ230ER if: Owners of a two- to three-car or drafty garage with a 240V/40A hardwired circuit who want the most output and remote/timer control for the money.
- Choose the Comfort Zone CZQTV5M if: Anyone who wants silent overhead heat on a workbench or garage-gym spot for under $60 on a standard 120V circuit; it is not a whole-garage heater.
Scores by criterion
| Criterion | Comfort Zone CZ230ER | Comfort Zone CZQTV5M |
|---|---|---|
| Noise & Sleep-Friendliness | 4.5Fan-forced blower, loud like every 240V unit here. | 9.3No blower; Bob Vila calls the heat silent. |
| Safety | 7.0Overheat shutoff and ceiling mounting; the ETL listing comes only from retailers (Lowe's, Bomgaars). | 6.3Metal grille, overheat cutoff and mounted overhead, but no UL/ETL listing confirmed and weak screws. |
| Heating Performance | 8.57.5kW is the top output in the pool; Bob Vila reports it put out plenty of heat but gives no measured data. | 3.51.5kW radiant spot heat only (about 150 sq ft). |
| Bedroom Usability | 7.0Digital thermostat, remote and timer; no pigtail or clamp included and no memory after a power loss. | 6.0Pull-string with two settings, no thermostat or remote; easy 120V install. |
| Health & Materials | 7.5No combustion; the enclosed-motor claim comes only from a retailer. | 7.5No fan stirring dust, no combustion; listing unverified. |
| Value | 9.0$145 for 7.5kW is the best output per dollar here; electrician cost possible. | 7.5About $59, the cheapest pick, but limited capability. |
Specifications
| Spec | Comfort Zone CZ230ER | Comfort Zone CZQTV5M |
|---|---|---|
| Heater type | Fan-forced ceiling-mount unit heater | Quartz radiant ceiling-mount |
| Fanless (no blower) | No | Yes |
| Overheat protection | Yes | Yes |
| Safety listing (ETL/UL) | ETL per retailers (Lowe's, Bomgaars); not confirmed on manufacturer site | — |
| Thermostat type | Digital thermostat, 45–95°F | None (pull-string 2 heat settings) |
| Max timer | 12 hours | — |
| Remote control | Yes | — |
| Warranty | — | 1 years |
| Weight | 21.4 lb | — |
| Manufacturer-rated coverage | 1,250 sq ft | 150 sq ft |
| Heating element / medium | — | Dual quartz tubes |
| Oscillation | — | No |
| Voltage | 208/240V single phase | 120V |
| Max wattage | 7,500 W | 1,500 W |
| Power connection | Hardwired (about 31.3A) | — |
Comfort Zone CZ230ER
Pros
- Highest output here, about 7,500W
- Digital thermostat, 12-hour timer and remote
- Lowest cost per watt
- Overheat shutoff
- Sold and shipped by Amazon at a mid-range price
Cons
- Draws about 31A and needs a 40A circuit
- Wire and clamp not included
- No memory after a power loss
- Some retailers list it as discontinued
A strong pick for big, cold garages where output and remote control matter more than a manufacturer-confirmed listing. Confirm the wiring plan before you buy.
Full Comfort Zone CZ230ER review →Comfort Zone CZQTV5M
Pros
- Silent, no blower or dust stirring
- Budget price
- Tilting head and built-in light
- Plugs into a standard 120V outlet
Cons
- No thermostat, two heat settings only
- Heats a small area
- Safety listing not confirmed
- Weak bracket screws
A cheap, quiet way to add warmth over one spot. Treat it as a supplement, not a garage heater.
Full Comfort Zone CZQTV5M review →Both products are part of our guide The Best Electric Garage & Workshop Heaters (120V/240V) of 2026, where you can see every pick, how we score and current prices from each retailer.