Guardian® Forced Air Heaters

Greenhouse-Guardian.jpg

20% More Efficient—A Great Option When Growing Less Sensitive Plants in Greenhouses

The Guardian’s time proven direct-fired design was specifically designed to protect your investment when the weather turns cold.

Although the Therma Grow Family of heaters works best for greenhouses as they are designed specifically for horticulture environments and are the cleanest burning direct-fired heater available today, an outdoor mounted Guardian might be a good alternative when growing less sensitive plants.

Guardians provide consistent, dependable heat for a wide range of greenhouse environments.

L.B. White is the pioneer in direct fired heaters and with 50 years of perfecting every aspect of our design which has led to our reputation for reliability, durability and serviceability.

Our exclusive Service Saver™ monitoring simplifies trouble shooting and helps you get your heater back up and running faster and easier.

When the fate of your plants is at stake… you want the rising star in greenhouse  heating protecting your investment… L.B White.

Call our technical experts to help you select the correct size and quantity of heaters for your greenhouses. 

Technical Support – 1-800-345-7200 

Key Features of the L.B. White Guardian Heater
for Greenhouses

  • Range of models from 60,000 to 325,000 Btu/h
  • Spark, hot surface or pilot light ignition
  • Variable or fixed heat output
  • Advanced Service Saver diagnostic feature
  • Tri-Shield White or galvanized case finish
  • Outdoor installation only

Guardian heaters are available in CSA U.S. and Canada certified models.

Specifications of Guardian Greenhouse Heaters

 

    Guardian
60
 

Guardian
100

  Guardian
250
  Guardian
325
                 

Btu/h Rating

  30,000-
60,000
  50,000-
100,000
  160,000-
250,000
  200,000-
325,000
Ignition Types  

Hot Surface
Spark 

  Hot Surface
Spark 
 

Hot Surface
Spark
Pilot

  Hot Surface

Electrical Supply (Voltz/Hz/Phase)

  115/60/1   115/60/1   115/60/1   220/60/1
Motor  

1/12 H.P.
1700 RPM 

  1/8 H.P.
1100 RPM
  1/3 H.P.
1100 RPM
  1/2 H.P.
1100 RPM

Dimensions 

 

L = 21.3"
W = 14.3"
H = 18.0"

 

L = 29.5"
W = 14.3"
H = 18.0"

 

L = 30.8"
W = 18.3"
H = 28.3"

 

L = 36.0"
W = 22.0"
H = 30.0"

Cabinet   Steel with
Tri-shield Coating
  Steel with 
Tri-shield Coating
  Galvanized Steel   Galvanized Steel

CSA Certified

 

Yes

 

Yes

 

Yes

 

Yes

                 

Although the Therma Grow Family of heaters works best for greenhouses as they are designed specifically for horticulture environments and are the cleanest burning direct-fired heater available today, an outdoor mount Guardian might be a good alternative.