Choosing the best space heater for garage accessories kit starts with matching thermostat wattage to heater wattage. The thermostat watt rating must be higher than the heater wattage. Many large garage heaters need a 24V thermostat or relay instead. This guide compares three line-voltage wall thermostats for that job.
This guide compared manufacturer specifications with owner feedback on thermostats. For easy setup in limited space, see our best space heater for garage easy setup and best space heater for garage for limited space guides. For our selection method, read our Editorial Policy on choosing thermostats. Line-voltage thermostats must be installed by a licensed electrician with the power off at the breaker.
Top 3 Line-Voltage Thermostats for Garage Accessories Kits
Cadet T522-W Double Pole Line Voltage Thermostat
- Double pole
- 5,280W at 240V
- 4-wire
Dr. Infrared Heater DR-001 Line Voltage Wall Thermostat
- 6,720W at 240V
- Single/double pole
- 41–90°F
Honeywell TL7235A1003 LineVoltPRO Digital Line Voltage Thermostat
- 3600W
- Digital
- Backlight
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Compared at a Glance
| # | Product | Key Features | |
|---|---|---|---|
| 1 |  Honeywell TL7235A1003 LineVoltPRO Digital Line Voltage Thermostat |
| Check Latest Price |
| 2 |  Cadet T522-W Double Pole Line Voltage Thermostat |
| Check Latest Price |
| 3 |  Dr. Infrared Heater DR-001 Line Voltage Wall Thermostat |
| Check Latest Price |
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1. Honeywell TL7235A1003 LineVoltPRO Digital Line Voltage Thermostat
Best Digital Pick
- Rated 3600 watts
- Digital non-programmable control
- On-demand backlight with heating indicator
- Quiet operation that reduces clicking
- Non-programmable, so no scheduling
- 3600 watts covers less than the higher-rated picks
- Rating: 3600 watts
- Type: line voltage, non-programmable
- Model: TL7235A1003
A backlight and heating indicator set this digital thermostat apart for simple wall control.
Hardwired wall mounting pairs with quiet operation that reduces clicking.
Who the Honeywell TL7235 fits best
Choose this thermostat for a hardwired heater up to 3600 watts needing simple digital control.
Who should skip the Honeywell TL7235
Avoid this rating for a heater above 3600 watts or a job needing a programmable control.
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2. Cadet T522-W Double Pole Line Voltage Thermostat
Best Double-Pole Pick
- Double pole for 120, 208 and 240 volt heaters
- Handles up to 5,280 watts at 240 volts
- 4-wire design switches both legs
- Color-coded wires
- Suits baseboard, fan-forced wall and convector heaters only
- 5,280 watts at 240 volts is below the 6,720-watt pick
- Rating: 5,280W at 240V
- Type: double pole
- Model: T522-W
Switching both legs through a double-pole, 4-wire design sets this thermostat apart for multi-voltage heaters.
Color-coded wires mark each connection for wall mounting.
Who the Cadet T522-W fits best
Pick this thermostat for a 120, 208 or 240 volt heater up to 5,280 watts at 240 volts.
Who should skip the Cadet T522-W
Pass on this model when heater wattage exceeds 5,280 watts at 240 volts.
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3. Dr. Infrared Heater DR-001 Line Voltage Wall Thermostat
Best High-Wattage Pick
- Handles up to 6,720 watts at 240 volts
- Handles up to 7,756 watts at 277 volts
- F and C dials from 41 to 90°F
- Positive OFF position with flush wall mount
- Dial control rather than a digital display
- Watt rating varies by voltage, from 3,360W to 7,756W
- Rating: 6,720W at 240V
- Type: single or double pole
- Model: DR-001
The widest watt range here sets this wall thermostat apart for larger hardwired heaters.
Single or double pole wiring with 4 wires covers different heater setups.
Who the Dr. Infrared DR-001 fits best
Consider this thermostat for a hardwired heater up to 6,720 watts at 240 volts.
Who should skip the Dr. Infrared DR-001
Look elsewhere when a digital or programmable control is preferred over dials.
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How to Choose Line-Voltage Thermostats for the Best Space Heater for Garage Accessories Kit
- Match the thermostat watt rating to heater wattage first.
- Choose a thermostat rated higher than the heater wattage.
- Use a 24V thermostat or relay for many large garage heaters.
- Check voltage before comparing watt ratings across models.
- Confirm pole type and wire count before wall mounting.
Frequently Asked Questions
Which thermostat handles the most watts at 240 volts?
The Dr. Infrared DR-001 handles 6,720 watts at 240 volts.
What does double pole mean on the Cadet thermostat?
Its 4-wire design switches both legs of the heater circuit.
What wattage is the Honeywell thermostat rated for?
It is rated 3600 watts as a line-voltage thermostat.
When should I use a 24V thermostat or relay instead?
Large garage heaters often need a 24V thermostat or relay instead.
Final Verdict: Best Space Heater for Garage Accessories Kit
For the best space heater for garage accessories kit, the Dr. Infrared DR-001 leads with 6,720 watts at 240 volts. The Cadet T522-W suits multi-voltage heaters with double-pole switching, while the Honeywell suits simple digital control.
Best Double-Pole Pick: Cadet T522-W Double Pole Line Voltage Thermostat Check Latest Price
Best High-Wattage Pick: Dr. Infrared Heater DR-001 Line Voltage Wall Thermostat Check Latest Price
Best Digital Pick: Honeywell TL7235A1003 LineVoltPRO Digital Line Voltage Thermostat Check Latest Price
Match wattage, voltage and pole type first, and the new thermostat will fit the heater.
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