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Comfort Zone CZ230ER 7,500W 240V Digital Ceiling Mount Garage Heater with Remote
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Comfort Zone CZ230ER

#2 · Best for Large Garages (Remote & Timer)
7.0 /10 Our score
Lowest verified price $144.97 Amazon
Our verdict
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.

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

Disclosure: We may earn a commission when you purchase through links on this page. This does not affect our editorial rankings.

View best price at Amazon
Last reviewed October 31, 2026
Review

What to know about Comfort Zone CZ230ER

A 7,500W (about 25,600 BTU) hardwired 240V ceiling unit heater with a digital thermostat, remote, 12-hour timer and fan-only mode, for large or drafty two- to three-car garages. Bob Vila's best-overall pick links this ASIN.
Editorial notes

Why it stands out

Why we like it

At 7,500W (about 25,600 BTU), it has the highest output in this guide and the lowest cost per watt. Bob Vila's best-overall pick links this model and says it proved to put out plenty of heat. It has overheat shutoff, and the Amazon listing confirms a digital thermostat, timer and remote, which is rare for a hardwired shop heater.

For a two- to three-car or drafty garage, the extra capacity is the point.

What to know

Skip it if your circuit can't handle about 31A, or if you want a heater with a manufacturer-confirmed safety listing. Its ETL listing comes from retailers, not Comfort Zone, and some retailers list the model as discontinued, so availability may tighten.
Performance

Score breakdown

Noise & Sleep-Friendliness

Independent noise results (CR noise score, measured dB from Bob Vila, Tom's Guide and Reviewed) count above manufacturer dB claims. Fanless designs, low-speed or ECO operation, and no harsh clicking or beeping all help.

4.5
Fan-forced blower, loud like every 240V unit here.
Safety

Tip-over and overheat shutoff, ETL/UL listing, hot-surface and exhaust temperatures (CR), child lock, and the brand's recall history.

7.0
Overheat shutoff and ceiling mounting; the ETL listing comes only from retailers (Lowe's, Bomgaars).
Heating Performance

How quickly and evenly the heater warms a typical 150–250 sq ft bedroom in independent tests.

8.5
7.5kW is the top output in the pool; Bob Vila reports it put out plenty of heat but gives no measured data.
Bedroom Usability

Thermostat precision (digital vs. mechanical), sleep/auto-off timer, remote, display brightness, size and weight, and how easy it is to place 3 ft from bedding.

7.0
Digital thermostat, remote and timer; no pigtail or clamp included and no memory after a power loss.
Health & Materials

Whether a fan stirs up dust, first-use odors, flame-retardant (V-0) housings, filters, and repairability and warranty length.

7.5
No combustion; the enclosed-motor claim comes only from a retailer.
Value

Street price relative to performance, safety and warranty.

9.0
$145 for 7.5kW is the best output per dollar here; electrician cost possible.
Specifications

Comfort Zone CZ230ER specs

Design

Heater type
Fan-forced ceiling-mount unit heater
Weight
21.4 lb

Noise

Fanless (no blower)
No

Safety

Overheat protection
Yes
Safety listing (ETL/UL)
ETL per retailers (Lowe's, Bomgaars); not confirmed on manufacturer site

Controls

Thermostat type
Digital thermostat, 45–95°F
Max timer
12 hours
Remote control
Yes

Performance

Manufacturer-rated coverage
1250 sq ft

Electrical

Voltage
208/240V single phase
Max wattage
7500 W
Power connection
Hardwired (about 31.3A)
Shopping

Compare prices

Prices are checked periodically. Older amounts are labeled with their last verification date.

Disclosure: We may earn a commission when you purchase through links on this page. This does not affect our editorial rankings.

Prices and availability may change. The retailer's price and availability at checkout govern the transaction.

RetailerPriceAvailability
AmazonLowest $144.97 $219.99 In Stock View deal
Walmart Check price at retailer Check at retailer Check at retailer
Lowest verified price $144.97
30-day low $144.97
90-day average $144.97
90-day low $144.97

Based on 2 retailer price observations captured during the last 90 days.

More coverage

Guides featuring Comfort Zone CZ230ER

The Best Electric Garage & Workshop Heaters (120V/240V) of 2026 Best for Large Garages (Remote & Timer) · #2
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