10 Reviews: Best Heater for Small Greenhouse (Mar 2023)

The first heater for a small greenhouse we’ve reviewed for you is Mr. Heater Portable Buddy Heater. With a low-oxygen safety shut-off system, it’s no surprise became Amazon’s choice for a propane heater. Additionally, this heater contains the fuel consumption or burn rate (Gal/Hr) at 4000 BTU.

In addition, a 4,000- to 9,000-BTU radiant heater is compatible with space up to 225 square feet. Almost 100% efficient heater with clean burning. And this portable heater can run up to 2.4 hours on high and 5.4 hours on low. Plus, this heater also features low & high settings, heavy-duty wire guards, and an easy-grip handle for the most convenience.

"Compact, self contained, and powerful. This little guy pumps out the hot air like your boss when he or she is droning on about mission statements."

by Hand E. Man

Next, we’re continuing to PELONIS Oil Filled Radiator Heater. This is the best brand that provides constant temperature with remote control. Yup, you can warm your greenhouse easily by using an available remote control with multiple settings. There are 3 heating modes consist Low/High/ECO with 5 temperature settings, 65F – 85F.

Moreover, This portable heater also features with digital thermostat, LED display, and 10-hour timer. Plus, you’ll love the easy portability design that uses a 360-degree steering wheel to run smoothly. Additionally, the heating method used is forced air and a fan.

"Heat output is enough for a small room, remote control is very convenient."

by Jack

Mr. Heater Little Buddy Heater comes with a one-handed easy start system. It can work by using gas power to heat a small greenhouse of up to 95 square feet. And the maximum elevation reaches 7000 feet with a 45-degree heating angle.

In addition, this portable heater costs less than $70. It is safe for emergency heat, campers, tents, workshops, and so on, and not recommended for motorized vehicles. Plus, the very well-designed with a sturdy handle makes it easy to carry. Overall, it is worth buying.

"Easy to use, works great. Super light weight. What more do you need ? 😊"

by jonathan negus

If you need a bit more pricey, give Vornado TAVH10 Electric Space Heater a try. This heater has a shape similar to a mini-portable fan. What makes it interesting is that the auto-climate control works gently to heat all the greenhouse rooms.

Besides, there’s also the LCD screen and touch-sensitive controls with 2 settings, high/1500W and low/750W. And, this heater uses 12-hour timer for energy consumption. Most importantly, the advanced safety features ensuring for worry-free use.

"Strong, reliable electric heater. Easy to move from room to room."

by Norman H. Levey

Comfort Zone Ceiling Mounted Heater offers a space-saving design for hard-wired installation and ceiling mounting. It allows you to save your floor space in the warehouse, storage, greenhouse, or garage. Also, this heater uses 3 heat settings and thermostat control.

Moreover, it is specially built with heavy-gauge steel for maximum sturdiness and increases its life span. And, it features the power indicator light and overheats sensor to ensure safeness. So, let’s try it and bring the best performance into your room.

"This heater is really easy to hook up and operate. It puts out a ton of heat too. I have an insulated garage, so that helps too."

by KX

Move to the other heater for less than $150, Bio Green Greenhouse Heater. This heater measure 11 x 8 x 12.5″ in dimensions with 10.8 pounds. It is lightweight and portable enough to carry on. And, this portable heater uses corded electricity with forced air and fan.

Afterward, this heater is perfectly used in the greenhouse for up to 120 sq ft. Plus, the digital thermostat has 110V power will produce the ambient temperature. Also, the two options settings include an adjustable thermostat and heating or ventilation in a snap.

"Powerful enough to keep our 200 sq ft greenhouse in the 40s when the outside temp drops to the low 30s...."

by Paul K.

Dr. Heater Greenhouse Garage Workshop Heater is a great professional choice to heat your plants. It features fan-forced air technology, making it a more efficient heat source. Also, it comes with only one manual setting (Fan/Heat/Off).

In addition, the IPX4 structure will protect the heater from water splashing, a nice feature. What’s more, with 3000 watts, this heater will cover your greenhouse for up to 150 Sq. ft. And this heater measure 10 x 10 x 15 inches with 12.8 pounds. Surely, it is lightweight enough.

"Simple to use. Just plug it in, adjust the thermosat and let it go."

by Rick T

If you’re looking for a solar panel source for a heater, go with Renogy Solar Panel Starter Kit. This reliable and durable heater features an anti-corrosion frame and durable, low iron tempered glass. Also, it features the EVA film and TPT back sheet for better performance.

Moreover, this solar panel source produces approximately 1000Wh of daily electricity for 5 hours of direct sunlight. And, it can reach up to 22% for cell efficiency. No doubt, this excellent quality heater is in a low-light environment. So, let’s purchase now at $279.67 on Amazon.

"Great setup for small systems, both permanent and temporary......"

by Alex Clark

Buyplus Electric Patio Heater with 1500 watt heat output offers plenty of flexibility that can be used inside or outside the house. It has quite a mini size of 5 “D x 4 “W x 3 “H, making it easy for you to operate.

On top of that, this portable patio heater can also work on garage or greenhouse. It will keep your plant from freezing. Also, this heater generates cool-down quality, which means to avoid overheating. Plus, you’ll be surprised with quickly and quietly heat your area,

"This little heater has been perfect for my greenhouse and learning temperature control for my seedlings and plants."

by Dav Ruff

Let’s close today’s list with AOBMAXET Greenhouse Heater. This heater comes with digital thermostat and use forced air for the heating method. This heater is also equipped with overheat protection and internal heat limiting thermostat. Plus, the auto-off system works when it reaches the overheating temperature.

Moreover, this heater is ideal to heat the greenhouse, sheds, store room, milk-house, and so on for up to 215 ft. What’s more, it is designed for floor standing with high air circulation fan. Also, this portable heater costs under $140—such a great price to choose from.

"This item really worth to buy cause it get heated like 30 seconds. Especially in cold weather you want you heat get boost fast so we can keep warm......."

by Wai