Will this heater be safe for my grow tent?

[StevOz]

Those are the most dangerous and expensive to run heaters you could think of using and I for one would never use one of those.

For less than the cost of the electricity to run a 400watt heater like that, a purpose built greenhouse heater is the only sensible solution.

What kind of heater can I use for my grow tent?

This is the heater you want, designed and fit for purpose… An electric tubular heater ensures your greenhouse can be used throughout the year, whatever the weather. They are made from steel, powder coated in white, and are designed to provide steady background heat, as economically as possible. Although there are several types of heating methods suitable for greenhouses, warm gentle radiant heating in our opinion is one of the most suitable and economical for the typical greenhouse enthusiast.…