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Grow Tent Heater

Last Updated: January 10, 2021
Roy Stevens
Product Review by Roy Stevens

If you’re one of the lucky few that live in a hot climate, you’ll probably only need a grow tent heater every now again for the odd cold night, but for many growers that live in places with changing seasons, temperature control, if not regulated properly, can cause serious problems such as mold (bud rot) or even crop failure.

For these growers, they know winter is coming and they’ll need to think about keeping the plants’ roots at an optimal temperature, so depending on their grow room, plus if the plants are auto-flowering or not, then the solution may be to incorporate a grow tent heater or multiple grow tent heaters.

So in this article, we’re going to try and answer some of your questions about grow tent heaters and save you from the many wasted hours online trawling through sites by highlighting some of the best-reviewed grow tent heaters out there.

Our Reviews

VIVOSUN Heat Mat and Digital Thermostat

The name VIVOSUN may ring a bell with some of our readers, as we’ve previously talked about their products in some of our earlier reviews.

But just like their fans, VIVOSUN make a pretty decent and affordable heat mat with the bonus of a thermostat included, the VIVOSUN 10″x20.75″ Seedling Heat Mat and Digital Thermostat to be exact.

Again, ideal for anyone on a budget that would prefer to use heating underneath, rather than a standalone heater.

The VIVOSUN 10″x20.75″ Seedling Heat Mat and Digital Thermostat is one of the best-reviewed heat mats out there at present, and cheap to boot and quite often rated at four stars and above.

Making it one of the more popular choices from the big online retailers, although some lower reviews have been known.

One downside of the VIVOSUN 10″x20.75″ Seedling Heat Mat and Digital Thermostat is that it only comes in one size, which isn’t exactly great.

It’s an easy fix though, as multiple heat mats can be attached to achieve the required results.

Safety is high on the list for VIVOSUN, and with this professional heat mat, you should experience little to no problems whatsoever.

If any defects do present themselves, then VIVOSUN has a 1-year warranty that is more than adequate.


  • Programmable thermostat
  • Easy portability
  • Can be connected if needed
  • Space saver


  • Short lifespan in some units
  • Only 1 size available

Pelonis Electric Oil Filled Radiator Heater

One of the most recommend heaters among growers for any set-up is the oil-filled radiator. With that being said, you can do much worse than opt for the Pelonis oil filled space heater when looking at this category.

Consistently rated five stars, the Pelonis double-layered covered oil heater would be ideal for any small to medium grow set-up.

It comes with multiple heat choices, with the highest running at 1500W and the lowest 600W, while the middle setting runs at about 900W.

As well as the three heat settings, the Pelonis space heater features an impressive LED display with five large easy to use and read buttons as well as a 24hr timer and digital thermostat.

An added bonus to the above is the inclusion of a remote, so choosing the right settings is made even easier.

If your one of the unlucky ones to experience problems with the Pelonis oil filled space heater, then don’t worry too much, as the heater comes with a standard one year warranty.


  • Multiple heating modes
  • Remote control included
  • 24 hr timer
  • Overheating & tip over sensor
  • 1-year warranty
  • Compact, small & space saver
  • Double layer cover for better heat production & safety


  • Some buyers have reported as not producing sufficient heat

De'Longhi Convector Panel Heater

The De’Longhi Convector Panel Heater is another option for any cannabis cultivator struggling to find adequate growing space. It’s just as safe as the Pelonis oil filled space heater while running at a similar wattage at 1500W.

As the name suggests it’s slightly different in design and comes as one rectangular thin convector panel rather than your fin radiator design.

For anyone with a small to medium grow setup this can be seen as a bonus, as it’s much thinner so can fit into a smaller area without causing to much trouble.

Convector panel heaters can be just as efficient as oil-filled heaters and are amazing at heating up the whole grow room quickly.

It’s claimed convector panel heaters are some of the best for using in cannabis grow rooms and are better for heating multiple plants at once, rather than just a single plant.

The De’Longhi Convector Panel Heater chooses to incorporate an LED display instead of the more simple design of dials, these are normally positioned to the side panel.

It also comes with an adjustable thermostat, which is sufficient enough for most people’s needs. As well as a timer and an energy-saving option.

Safety features of the De’Longhi Convector Panel Heater come in the form of an internal overheat sensor, which will switch of the heater if it ever becomes too hot, an automatic cut off switch if the heater is ever tipped over, as well as caution indicator lights.


  • Compact, thin space saver
  • Good price
  • Easy to use
  • Can be fitted to the wall
  • Energy saving & cheap to run


  • Some reports of heat produced not as advertized

DIMPLEX 1000W 30" Wireless Heater

The DIMPLEX 1000W 30″ Wireless Heater is mini in design but packs enough of a punch to be included in this list. Consistently rated four stars and above, the consumers that have bought this little powerhouse have not been disappointed.

It doesn’t come with as many heating options as some other heaters but is becoming ever more popular among the growing community for the heat they produce whilst also saving on space.

These baseboard heaters are ideal for full grow rooms when more than one heater is required.

Where the DIMPLEX 1000W 30″ Wireless Heater falls short on its heat settings and installation process, it more than makes up for with its small compact design and efficient heat production.

The smaller DIMPLEX Wireless Heater models are also an ideal solution for those with smaller grow tent setups and do the job of keeping your roots at an optimal temperature considerably well.

With a high-efficiency thermostat, easy installation, warranty of 10 years for elements, a 1-year unit warranty plus CSA certified. The DIMPLEX Wireless Heater is another popular option for cannabis cultivators.


  • Small, compact with easy portability
  • 1-year unit warranty
  • 10-year element warranty
  • Built-in electric thermostat
  • Ideal heater for small spaces


  • Short lifespan in some units
  • Not the quietest
  • Needs to be installed, not plug & play

Lasko 5624 Convection Heater

The Lasko 5624 Convection Heater is another good quality baseboard heater that includes enough settings to satisfy most indoor growers, it’s priced reasonably well, offering cultivators on a budget another fantastic heating option.

The Lasko 5624 Convection Heater is both small and compact and should be able to fit in the smallest of grow tent setups. Quiet and sleek, the Lasko 5624 Convection Heater features a digital display whilst running at 1500W at the highest setting.

As well as the multiple heat settings, the Lasko 5624 Convection Heater is plug and play right out of the box, so no hard wiring will be needed.


  • Small & compact, ideal for small spaces
  • Quiet operation
  • Multiple heat settings
  • Plug & Play
  • Well-known brand


  • Heat produced in some models not sufficient
  • Short lifespan of some defective models

Heat-Wave 1,000 Watt Convection Baseboard Heater

Next, we have the Heat-Wave 1,000 Watt Convection Baseboard Heater.

A great alternative to both the Dimplex and Lasko baseboard heater, the Heat-Wave 1,000 Watt Convection Baseboard Heater comes with 2 heat settings. The lowest running at 500W and the highest at 1000W.

Once again, just like the Lasko, the Heat-Wave 1,000 Watt Convection Baseboard Heater is plug and play right out of the box, so no hardwiring will be needed, which is always a bonus.

Small, compact, and sleek. The Heat-Wave 1,000 Watt Convection Baseboard Heater will fit in most grow tents. An added bonus is the inbuilt thermostat, as well as some safety features to give you peace of mind (thermal cut-off protection & tip-over switch)

Priced well, with a heat coverage of upto 400Sq Ft, the Heat-Wave 1,000 Watt Convection Baseboard Heater offers cannabis cultivators another great heater option.


  • Multiple heat options
  • Plug & play
  • Safety features
  • In-built thermostat
  • Small & compact
  • Priced well


  • Build quality not the best

What is a Grow Tent Heater?

A grow tent heater is a piece of equipment that can produce heat which is then directed to a specific area, be it a room or object/s so to increase the temperature of the intended target area.

Most are quite expensive to run on a continuing basis, and will generally need an electrical mains supply, although there are other options available, propane, etc.

The design is mostly of an upright rectangle or square design, but can sometimes be round or oblong, prices vary and can range from under $50 into the $1000, and hundreds of options are available. They can also be static, fixed or oscillating.


The choice of what grow tent heater to buy for your grow room, again just like grow tent fans will come down to the growers’ personal preference, the size needed, the price of the grow tent heater and what’s commonly recommended and used by other cannabis cultivators.

But to be honest, there’s not really a definitive right answer to the question, “what heater should I buy for my grow tent or grow room?

Some cannabis growers will incorporate a heater inside of the grow tent, obviously, this isn’t ideal, but does work and can produce the required results.

Bear in mind though, the heater would need to be of a smaller size and there’s also the real possibility of it being a fire hazard.

The best practice is to place your chosen heater on the outside of the grow tent, or if you have a full-sized grow room opt for multiple oil-filled, panel or baseboard heaters.

Heat mats and heat tubes are other affordable options that many growers incorporate into their grow rooms with varying results. Obviously, heat mats are more commonly used for seedlings.

But by connecting several of these mats together and placing them underneath your plants you can achieve similar results to the more conventional heater.

Some growers have even used outside heat mats as a sort of underfloor heating method/technique. These would normally be used for melting snow and ice outside, so again there’s a safety issue here. So consider every aspect carefully before going ahead.

Tube heaters can/are used, but are a bit hit and miss depending on what brand you choose to purchase. The Dimplex tube heater is one of the more popular among indoor growers.

A great technique for underplant heating is to place one or more tube heaters inside of a wooden pallet and place underneath your cannabis grow, you should see some good results from this method.

Again, use common sense to any heating options you choose to use. Safety is paramount, the last thing anyone wants is a potential fire situation.

Some of the most popular and recommended grow tent heaters are:


Grow tent heaters play an important role in most grow rooms, this can be especially true when growing in the winter.

More than likely you’ll be growing in a confined area as well, and will need a grow tent heater that fits the requirements of being small enough for your grow tent, but also producing enough heat to keep your plant roots at an optimal temperature.

There’s a plethora of choice in the grow tent heater market at present, and we’ve written about some of the better-reviewed ones that are currently available, and by doing so hopefully made the decision of what grow tent heater to buy that little bit easier.

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