Top 5 Small Greenhouse Heaters: Buyer’s Guide

Imagine your tiny greenhouse, bursting with vibrant seedlings and delicate herbs. You’ve nurtured them from tiny seeds, and now they’re ready to thrive. But as the days get shorter and the air turns chilly, a single question looms large: how do you keep your miniature paradise warm and protected?

Choosing the right heater for your small greenhouse can feel like a big puzzle. You want to give your plants the best chance to grow, but the sheer number of choices can be confusing. You might worry about energy bills, safety, or if a heater will even be powerful enough for your cozy space. It’s a common challenge for gardeners who want to extend their growing season and protect their precious plants from frost.

Don’t let the cold weather stop your gardening dreams! In this post, we’ll break down everything you need to know about small greenhouse heaters. We’ll explore different types, look at what makes them work, and help you find the perfect one to keep your plants happy and healthy, no matter the season. Get ready to discover the secrets to a perfectly warm greenhouse!

Our Top 5 Greenhouse Heater Small Greenhouse Recommendations at a Glance

Top 5 Greenhouse Heater Small Greenhouse Detailed Reviews

1. TRUSTECH Greenhouse Heater with Thermostat

TRUSTECH Greenhouse Heater with Thermostat, 1500W Outdoor Electric Heater, 3S Heating &3 Heat Modes, Overheat Protection, 90° Tilt, Portable for Green House, Flower Room, Workplace

Rating: 9.3/10

Keep your plants and workspace toasty warm with the TRUSTECH Greenhouse Heater. This powerful 1500W heater is designed for quick, efficient heating in various settings. Its portable design and safety features make it a reliable choice for any cool space.

What We Like:

  • It heats up super fast, in just 3 seconds!
  • You can pick from three settings: high heat, low heat, or just a fan.
  • It has a safety feature that stops it from getting too hot.
  • The thermostat helps keep the temperature just right.
  • You can tilt it up to 90 degrees to point the heat where you want it.
  • It’s small and light, so you can easily move it around.
  • It’s simple to use – just plug it in and turn the knob.
  • It’s ETL certified, so you know it’s safe.

What Could Be Improved:

  • The power cord is 80 inches long, which might be a little short for some larger spaces.

This TRUSTECH heater is a fantastic way to add comfort and warmth to your greenhouse, workshop, or any other chilly spot. Its user-friendly design and safety features make it a smart addition to your equipment.

2. Shinic Garage Heaters for Indoor Use

Shinic Garage Heaters for Indoor Use, Metal Portable Space Heater with Thermostat, Greenhouse heater, Adjustable Head, Tubular Stand, Padded Handle, and Wide Base for Stability

Rating: 9.1/10

Introducing the Shinic Garage Heater, a robust and portable solution designed to bring warmth to any indoor space. This metal space heater boasts a durable build and thoughtful features, making it a versatile choice for keeping you cozy whether you’re in your garage, workshop, greenhouse, or even your living room.

What We Like:

  • Durable Metal Construction: Built with a heavy-duty metal housing, this heater is made to last for years.
  • Easy Portability: A comfortable padded handle makes it simple to move the heater from one room to another.
  • Fast and Effective Heating: With 5,120 BTUs and three heating modes (750W low, 1500W high, and cool air), it quickly heats up your space.
  • Smart Thermostat: The manual thermostat automatically cycles the heater on and off to maintain your desired temperature.
  • Adjustable Heating Angle: A 60° adjustable head lets you direct the warmth precisely where you need it.
  • Safety First: ETL listed and equipped with overheat protection, this heater offers peace of mind.
  • Reliable Customer Service: Backed by a 1-year limited warranty and responsive customer support.

What Could Be Improved:

  • The term “endless warmness” might be a slight exaggeration; heating capacity is dependent on room size and insulation.
  • The primary focus on “garage” in the title might overlook its suitability for other indoor spaces.

This Shinic heater is a reliable and safe option for anyone needing to warm up their indoor spaces. Its sturdy design and convenient features make it a practical addition to any home or workspace.

3. Greenhouse Heater with Thermostat

Greenhouse Heater with Thermostat, Auto Temperature Control Kit with Digital Display, Fast Heating, Overheat Protection, for Grow Tent, Greenhouse, Flower Room, Patio, Winter Plants

Rating: 8.6/10

Keep your plants cozy all winter long with this Greenhouse Heater and Thermostat kit! This system automatically controls the temperature, so you don’t have to worry about your precious plants getting too cold. It heats up super fast and is designed to be safe and save you money on electricity.

What We Like:

  • It has an automatic temperature control kit with a digital display. This means it keeps your space at the perfect warmth all the time.
  • The heater warms up really fast, in just 3 seconds! It can heat up to 120 sq. ft.
  • It has a safety feature called overheat protection. It also uses fireproof materials, so it’s safe to use.
  • It helps you save energy because it turns on and off automatically.
  • You can use it in many different places like greenhouses, grow tents, garages, and even your living room.
  • It has adjustable settings for temperature and wind speed.

What Could Be Improved:

  • The description doesn’t mention how quiet the heater is.
  • It would be helpful to know if there are different size options for smaller or larger spaces.

This heater kit is a smart and safe way to protect your plants during cold weather. It offers convenience and efficiency for various spaces.

4. Air Choice 1500W Space Heater with Thermostat

Air Choice 1500W Space Heater with Thermostat, Quick Heating Greenhouse Heater, Overheat Protection, 3 Heat Modes & 90° Tilt, Portable Outdoor Heater for Garage, Grow Tent, Tabletop or Indoor Use

Rating: 8.9/10

Introducing the Air Choice 1500W Space Heater, your new best friend for staying warm no matter where you are. This heater is designed to bring quick, reliable heat to any space, from your cozy home to your chilly garage or even your precious plants in a greenhouse. Its bright yellow color adds a touch of cheer while its powerful features ensure comfort and safety.

What We Like:

  • It heats up super fast, in just 3 seconds!
  • You can choose from three heat settings: high, low, or just a fan.
  • Safety is a top priority with overheat protection and certifications.
  • The thermostat keeps your room at the perfect temperature.
  • You can tilt it 90 degrees to aim the heat exactly where you need it.
  • It’s really light and easy to carry around.
  • Setting it up is a breeze – just plug it in and turn it on.

What Could Be Improved:

  • The thermostat’s temperature range has a small fluctuation of ±3°C.
  • While portable, it’s still an electric heater, so it needs an outlet.

This Air Choice heater is a simple, effective way to get warm quickly and safely. It’s a great option for anyone needing extra heat in various locations.

5. Gardtech Electric Space Heater for Indoor Use

Gardtech Electric Space Heater for Indoor Use, Outdoor Heater with Overheat Protection, Fast Heat PTC Ceramic Portable Garage Heater for Workshop, Greenhouse (Green)

Rating: 9.3/10

The Gardtech Electric Space Heater is a versatile and safe way to warm up your indoor or outdoor spaces. This green heater is designed to be portable, making it easy to move from your workshop to your greenhouse. It even has a special bracket to keep it from tipping over.

What We Like:

  • It’s very safe because it has a stabilizing bracket to stop it from tipping.
  • The heater is ETL certified, which means it’s tested and safe for your family.
  • It heats up super fast, in just 2 seconds, thanks to its advanced PTC ceramic technology.
  • The fan spreads the warm air evenly and quickly.
  • It’s very quiet, only making 35dB of noise, so it won’t bother you while you work or sleep.
  • You can choose different heat settings: just the fan, low heat, or high heat.
  • It’s energy-efficient, using 30% less energy than other heaters while still warming up to 215 square feet.

What Could Be Improved:

  • While it’s great for many spaces, it might not be powerful enough for very large or extremely cold areas.

This Gardtech heater offers quick warmth and safety for various uses. It’s a smart choice for staying comfortable without using too much energy.

Choosing the Best Small Greenhouse Heater: Your Cozy Garden Companion

Are you dreaming of extending your growing season or nurturing delicate plants through the colder months? A small greenhouse heater is your secret weapon! This guide helps you pick the perfect one to keep your plants warm and happy.

Why You Need a Small Greenhouse Heater

Cold snaps can be tough on plants. A heater creates a stable, warm environment inside your small greenhouse. This lets you grow a wider variety of plants and harvest them for longer. It’s like giving your plants a cozy blanket!

Key Features to Look For

When shopping, keep these important features in mind.

Thermostat Control

  • What it does: A thermostat lets you set a specific temperature. The heater turns on and off automatically to keep it there.
  • Why it matters: This saves energy and prevents your greenhouse from getting too hot or too cold. Your plants will thank you!

Safety Features

  • Overheat Protection: This automatically shuts the heater off if it gets too hot. It’s a crucial safety measure.
  • Tip-Over Switch: If the heater accidentally falls over, this switch turns it off. This prevents fires.
  • Waterproof Rating: Look for heaters designed for damp greenhouse environments. They resist moisture damage.

Heating Power (Wattage)

  • What it does: Wattage tells you how much heat the heater can produce.
  • Why it matters: You need enough power to warm your specific greenhouse size. A small heater for a tiny greenhouse is different from one for a medium-sized one. Check the manufacturer’s recommendations for greenhouse size.

Portability and Size

  • What it does: Some heaters are small and lightweight, making them easy to move.
  • Why it matters: You might want to move the heater around your greenhouse or store it easily when not in use.

Important Materials

The materials used in a heater affect its durability and safety.

  • Durable Casing: Look for heaters made from strong metal or heat-resistant plastic. This protects the internal parts and makes the heater last longer.
  • Rust-Resistant Components: Greenhouses can be humid. Rust-resistant materials help prevent damage and keep the heater working well.

Factors That Improve or Reduce Quality

Several things make a heater better or worse.

What Improves Quality:

  • Brand Reputation: Well-known brands often make reliable products. They usually offer good warranties.
  • Customer Reviews: Reading what other users say is very helpful. Look for consistent positive feedback on performance and durability.
  • Energy Efficiency: Some heaters use less electricity to produce the same amount of heat. This saves you money on your power bill.

What Reduces Quality:

  • Cheap Construction: If a heater feels flimsy or has sharp edges, it might not be built to last.
  • Lack of Safety Features: Missing important safety features like overheat protection is a big red flag.
  • Poorly Written Instructions: Confusing instructions can make setup difficult and increase the chance of errors.

User Experience and Use Cases

How do people actually use these heaters?

  • Keeping Seedlings Warm: New plants are delicate. A heater provides a gentle warmth to help them sprout and grow strong.
  • Overwintering Tender Plants: If you have plants that can’t survive frost, a heater keeps them alive inside the greenhouse. Think of things like certain herbs or tropical flowers.
  • Extending the Growing Season: Start your tomatoes earlier in spring or keep growing lettuce into fall. A heater makes this possible.
  • Frost Protection: Even a small amount of heat can prevent damaging frosts from harming your plants.

Frequently Asked Questions (FAQ)

Q: What size greenhouse can a small heater warm?

A: Small heaters are usually best for greenhouses up to about 6×8 feet. Always check the product’s recommended greenhouse size.

Q: How much electricity does a small greenhouse heater use?

A: It depends on the wattage and how often it runs. A 500-watt heater running for 10 hours a day will use about 5 kilowatt-hours (kWh) of electricity.

Q: Are electric greenhouse heaters safe?

A: Yes, if they have safety features like overheat protection and a tip-over switch. Always follow the manufacturer’s instructions.

Q: Can I leave a greenhouse heater on all night?

A: Yes, most modern heaters are designed for continuous use. Thermostat control is key to saving energy.

Q: What is wattage?

A: Wattage is a measure of how much electrical power a device uses. Higher wattage means more heat output.

Q: Do I need a special outlet for a greenhouse heater?

A: Usually, no. Most small heaters plug into a standard household outlet. Make sure the outlet is suitable for the heater’s power needs.

Q: How do I clean my greenhouse heater?

A: Always unplug the heater first. Gently wipe the exterior with a damp cloth. Avoid getting water inside the unit.

Q: Can I use a small heater in a larger greenhouse?

A: It might not be enough. A small heater will struggle to keep a large greenhouse warm, especially in very cold weather. You might need a larger heater or multiple units.

Q: What’s the difference between convection and fan heaters?

A: Convection heaters warm the air naturally. Fan heaters use a fan to blow warm air around, heating the space faster.

Q: How often should I check the temperature in my greenhouse?

A: It’s a good idea to check it at least once a day, especially when the weather changes. This ensures your heater is working correctly.

In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.

If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.