5 Best Crawl Space Heaters (Reviews & Guide 2021)

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Best Crawl Space Heater to buyThe crawl space makes the circulation of air through the house easier. It also makes the installation, maintenance, or repair of plumbing or electrical works less stressful.

However, the crawl space, just like your rooms, gets cold during winters. This could potentially lead to the freezing of pipes, among other things. Therefore,  it is essential to find ways to maintain a decent temperature in the crawl space during winter. One of the best ways to do that is by installing a heater.

Getting an ideal heater may be difficult and stressful because there are so many heaters to choose from, so we have curated a list that contains some of the best crawl space heaters.

Top Five Best Crawl Space Heaters Reviews

Last update on 2021-01-20 / Affiliate links / Images from Amazon Product Advertising API

As earlier mentioned, there are so many popular brands with different great heater models. This often makes selecting a perfect heater challenging since you are faced with so many alternatives.

Thus, to speed things up and simplify the process for you, we have come up with a list of 5 great heaters for your crawl space. In rounding up on these 5 heaters, we considered the following factors:

  • Safety
  • Heating Capacity
  • Energy Efficiency
  • Level of maintenance required
  • Durability

Below, we have highlighted the distinctive features of each of them while also drawing attention to their downsides.

Check out the top five best crawl space heaters:

1. Fahrenheat FBE15002 Portable Heater – Energy-Efficient Crawl Space Heater

Fahrenheat FBE15002 PORTABLE HEATERS, White
  • High-impact Lexan end panels with built-in handles
  • Built-in thermostat with power light with an attractive chimney fin element design
  • Its 100% energy efficient with 120V operationIts made in USA Its best suited for dens,bedrooms and basements

Last update on 2021-01-20 / Affiliate links / Images from Amazon Product Advertising API

The Fahrenheat baseboard heater is designed for use in different parts of the home, including those difficult-to-heat parts, such as your crawl space. Its optimal energy efficiency level is just one of the numerous features that earn it a spot on this list. This 1500-watt heater is also suitable because it is made with steel material, and this contributes significantly to its durability.

Additionally, the manufacturers of this portable baseboard heater put a lot of safety and stability measures into consideration. For instance, this convection heat distribution unit comes with safety thermal cut-out protection.   The heater also meets the UL safety standards, and this is an assurance of its safety level.

Furthermore, the heater comes with a thermostat, which has been described by multiple users as outstandingly accurate. One last impressive feature of this baseboard heater is that it would evenly distribute warmth to all parts of your crawl space.

For everyone looking for an energy-efficient crawl space heater that comes with decent heating capacity, you have a winner in the Fahrenheat baseboard heater.


  • Budget-friendly
  • Energy-efficient unit
  • Very easy to set up
  • Accurate in-built thermostat
  • Unit does not overheat


  • Inadequate instruction manual
  • Plastic quality is of average quality

2. Cadet Manufacturing White 05532 120-Volt Baseboard Hardwire Electric Zone Heater – Budget-friendly 

Cadet Manufacturing White 05532 120-Volt Baseboard...
  • Requires A Thermostat
  • 25 Gauge Steel
  • 20 Gauge Junction Box With Ground, All Metal, And Powder Coated
  • UL Listed Heater
  • Requires A Thermostat
  • 25 Gauge Steel
  • 20 Gauge Junction Box With Ground, All Metal and Powder Coated
  • UL Listed Heater

Last update on 2021-01-20 / Affiliate links / Images from Amazon Product Advertising API

The Cadet Baseboard Hardwire Electric Zone Heater is for every buyer looking for a budget-friendly, yet standard heater for their crawl space. With this unit, your crawl space enjoys the warmth of quiet and very reliable heat.

With its practical design, which makes it suitable for long-term usage, you can now bid goodbye to freezing pipes. This heater is also ETL listed to UL standards, an assurance of its safety standards all year round.

It is also interesting to note that the heater is highly durable and can withstand scratches and nicks, all thanks to its 25 gauge steel and powder-coated finishes. Furthermore, the universal wiring available at both ends makes the installation of the unit very easy.

Additionally, to ensure that noise isn’t an issue, the manufacturer has added nylon bushings to this 750-watt heater for noise reduction. Lastly, this heater has the high-temperature safety shut-off feature to prevent overheating.

The Cadet heater ranks as the cheapest product on this list, but be assured that price tag doesn’t undermine its efficiency.



  • Easy to install and comes with clear instructions
  • Budget-friendly
  • Made with quality material
  • Very quiet operation
  • Lifetime warranty


  • Does not come with a thermostat
  • Not suitable for large crawl spaces

3. Fahrenheat FUH Electric Heater  – Versatile Crawl Space Heater

Fahrenheat FUH Electric Heater for Garage,...
  • HEAVY DUTY HEATER: Warm-up just about any open space with this heater that provides long-term comfort solutions with its built-in single pole thermostat that adjusts from 45 to 135 degrees Fahrenheit.
  • CONTINUOUS COMFORT: If you have a large drafty space, this heater is ideal. Its powerful output means it can warm cold commercial areas, stores, service stations, spacious basements, and even outdoor areas like patios and workspaces.
  • EASY TO USE: This heater includes a ceiling mounting bracket for vertical or horizontal mounting, or any position that suits your space. It has adjustable louvers, so you can aim your heat directly toward your desired area and change as needed.
  • OUTPUT CONTROL: The high-level cutout automatically shuts off to prevent overheating and reactivates the heater when the temperature returns to normal. The built-in thermostat allows you to set your heat level to deliver as much warmth as you need.
  • COMPATIBILITY: Whether you need 208 or 240 volts, this heater is fully compatible with your electrical system.
  • Wattage: 5000 Watts

Last update on 2021-01-20 / Affiliate links / Images from Amazon Product Advertising API

The baseboard heaters are not the only heater options suitable for use in the crawl space. Series of regular heaters that are crawl space-friendly exist, and the Fahrenheat FUH electric heater is one of such. Made for use in areas that are often difficult to heat, especially during winter, this heater comes with an inbuilt single-pole thermostat.

It is adjustable from 45 to 135 degrees Fahrenheit, and that helps to keep the temperature in check. This also boosts its energy efficiency.

The heater also has a high-level cut out which automatically shuts off when necessary to prevent overheating. In addition, the heater is a great choice for use in crawl spaces because it was built with safety and structural tolerance in mind. The 5000-Watt heater is designed to strike a fine balance between the circulation of cold air and excess heat at every point. This gives assurance of warmth in your crawl space at all times.

The price tag of this heater may be a bit of a downside as there are other cheaper and similarly effective heaters for use in the crawl space.


  • Comes with inbuilt single-pole thermostat
  • Compatible with different electrical systems
  • Suitable for large crawl spaces
  • Energy efficient


  • Has no power light
  • Has no off/on switch
  • Sometimes takes a while to warm up space

4. Dimplex DGWH4031G  – Durable Crawl Space Heater 

DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt...
  • POWERFUL: Durable 4,000 watt, stainless steel heating element and a high-performance motor deliver reliable comfort
  • DURABLE: Our electric heater is designed with heavy gauge steel treated with epoxy powder-coated finish to provide longevity and corrosion resistance
  • ADJUSTABLE: Includes bracket that allows ceiling or wall-mounting, plus swivel and pivot to direct heat where it is most needed
  • SAFE: This heater includes an automatic overheat protection to ensure safe operation
  • CONTROL: Made with thermostat control and fan delay to use residual heat after the element shuts off

Last update on 2021-01-20 / Affiliate links / Images from Amazon Product Advertising API

The Dimplex heater is a fan-forced heater built as a perfect fit for areas such as garages, basements, and even crawl space.

This heater, built around the stainless steel heating element, is very durable and would readily serve your crawl space for several years down the line. To ensure that it’s safe for use, it comes with the auto safety shut off. Thus, there’s no need to be perpetually disturbed about a fire outbreak in your crawl space.

Further, it comes with a high-performance motor and a propeller style fan heater, which combines to boost its efficiency. Also, the 4000-watt heater has an inbuilt thermostat control and fan delay, which provides residual heat should the main element shut off.

Dimplex is renowned for making some of the finest heating solutions to make your home comfortable without compromising its energy efficiency. Thus, this easy-to-use, mid-range priced heater is a testament to the goodness of the Dimplex heating solutions.


  • Highly durable
  • Heavy gauge steel finishing to boost longevity and corrosion resistance
  • Automatic overheat protection to boost safe operation
  • Energy efficient
  • Quick connection
  • Suitable for large crawl spaces


  • Makes a loud rattling sound when on full blast heat

5. Dr. Heater DR966 – Low maintenance Crawl Space Heater

Dr. Heater DR966 240-volt Hardwired Shop Garage...
  • Heavy Duty 240V Single Phase 3000/6000W Commercial Electric Heater
  • Hardwired; Power cord not included in the unit. Dimensions: Overall Height - Top to Bottom: -14.5". Overall Width - Side to Side: -13". Overall Depth - Front to Back: -14.5".
  • UL/CUL Listed Wall or Ceiling Mounted Heater; Bracket Included
  • Adjustable Thermostat with HIGH and LOW Setting. A dynamically 8 inch fan provide maximum air flow with minimum turbulence and noise, gently distributes warmth through your area
  • 5 Adjustable Louvers for to Direct Airflow

Last update on 2021-01-20 / Affiliate links / Images from Amazon Product Advertising API

The Dr. Heater DR966 heater is undoubtedly an excellent choice for anyone looking for a safe and comfortable heater in the crawl space, especially if you sometimes use the crawl space for storage purposes.

Designed with spiral steel metal sheath electric heating elements, it has low sheath temperatures that provide uniform heat in your crawl space. This heater has large fans to offer you maximum airflow while ensuring that there’s minimal turbulence. With a 6000-wattage, the heater comes with five adjustable louvers for direct airflow. Also, it has UL and CUL safety certificates.

All its features are fully enclosed and thermally protected. The heater also has permanent lubrication, which contributes to making it long-lasting, with only minimal maintenance required. With its adjustable built-thermostat, you can always select your preferred temperature level.

If you need a long-lasting and low maintenance heater for your crawl space, look no further than the Dr. Heater DR966 Heater.



  • Long-lasting
  • Makes minimal noise
  • 1-year parts and labor warranty
  • It is affordable
  • Suitable for very large crawl spaces



  • The fan isn’t so strong
  • Sometimes restarts itself if the temperature is turned high
  • No input cord

How to Buy the Best Crawl Space Heaters

There are different things to look out for when shopping for a crawl space heater. So whether you are going for convection or fan-forced heater, below are some crucial factors to consider:

  • Safety

“Safety first” is one of the foremost considerations when shopping for most home appliances, and the crawl space heater isn’t an exception. The space heater has been reported as a common cause of house fires, especially during winter. Thus, before purchasing a space heater for your crawl space, you need to double-check its safety status.

Several space heaters come with automatic shut-off features. In essence, the space heater automatically shuts off itself when it starts to overheat. This helps to reduce the possibility of a fire outbreak.

Besides, a lot of these heaters come with safety-conscious exterior cases targeted at keeping them cool to touch all the time. Thus, be sure to look out for these features and inspect your crawl space as well  before you order that space heater.

Also, several space heater models have been tested in different laboratories for safety. Usually, these models bear letters such as UL, CUL, NTRL, etc., to show that they meet some safety standards. This serves as an additional form of assurance that the unit you are about to purchase has satisfied some safety requirements. Thus, it is best to get a model that has any of these safety certificates.

  • Heating Capacity/Size of Space

How big is your crawl space? Well, you need to know the size of your crawl space before choosing a space heater. Determining the size of the space that can be seamlessly covered by the heater is usually done by considering the wattage rating of the heater.

As a rule of thumb, a room heater consumes 10 watts of power for each square foot. However, this isn’t applicable for all models as the heating technology and type of space also determine this.

The good part is that a lot of space heaters have express indications of the space size that can be adequately heated by them. So, you should be on the lookout for this to avoid getting a heater that cannot sufficiently heat your crawl space.

  • Energy Efficiency

The energy efficiency level of a space heater is one other factor you need to consider before purchasing a crawl space heater. You do not want to trigger an avoidable increase in your electricity bill because you made the wrong choice. Some models already have indications about their levels of energy efficiency.

Also, space heaters with features such as low wattages, adjustable thermometers, energy-saving mode, etc., are known to minimize energy consumption. These are some of the features you need to pay attention to while choosing a space heater.

  • Low Maintenance Operation

Due to the nature of the crawl spaces, it is only logical to get a space heater that requires only a minimal level of maintenance. It is not beneficial to get a space heater that requires daily routine or maintenance checks for your crawl space. Thus, opt for space heaters that would only require occasional and straightforward maintenance actions. The Dr. Infrared heater reviewed in this article ranks high for this feature.

  • Durability

Flowing directly from the low-maintenance feature is the durability of the heater. There’s no point getting an electrical space heater that needs to be changed quarterly or yearly when you can easily buy a durable one once and for all.

While durability sometimes depends on use, some models are generally known to be more durable than others. More often than not, heaters made with high-grade stainless steel tick the box for durability. 

Wrap Up

Getting the ideal heater for your crawl space during winter doesn’t have to be so difficult. Hence, we made a comprehensive list of some of the best crawl space heaters. In this article, we have reviewed some heaters based on essential factors such as safety, energy efficiency, and heating capacity. We have also examined the pros and cons of each of the heaters, and we believe that this article would help you make the right choice.

You may also like our guide on the best portable garage heater.