Greenhouse heating

greenhouse heaters

If you’re in search of a quality greenhouse heater, you’ve come to the right place. Williamson Greenhouses proudly partners with our trusted manufacturer, LB White, which has decades of heating experience and a full line of greenhouse heating solutions.

For general agriculture greenhouse heating purposes, we typically recommend the heater from LB White.

Designed to deliver outstanding performance whether it’s powered by natural gas or propane gas, this LB White greenhouse heater includes features that will provide you with years of worry-free, dependable operation, including:

  • high temperature protection
  • an air-proving switch
  • a completely enclosed motor to assure safe operation
  • high-quality corrosion-resistant components
  • solid case construction


Advanced heating for greenhouses

We also stock top-of-the-line Therma Grow™ greenhouse heaters, which utilize the exclusive LB White Plant-Safe Technology, the only greenhouse heater certified to the stringent greenhouse emissions standards.


LB White designed their Therma Gro heaters for delicate and fruit-bearing plants raised in a greenhouse.

Therma Grow greenhouse heaters are advanced, clean-burning, direct-fired models that offer 20% more fuel efficiency than traditional greenhouse heaters.

So when comparing thermal conversion or seasonal efficiency, the Therma Grow greenhouse outperforms even the most advanced competitive products and it does so for less money.

Therma Grow greenhouse heaters also carry a 10-year warranty on the heat chamber and case and have completely enclosed and protected components, guaranteeing you years of trouble-free heating.

Key features:

  • two output sizes, 120,000 Btu/h and 220,000 Btu/h
  • meets all OSHA emissions requirements for greenhouses
  • some models provide even greater heat management features, including two-stage temperature control and heating and air circulation modes
  • dependable, fuel-efficient hot-surface ignition provides quick response and on-demand heating
  • easy integration with building controls

Give us a call and we will help you find products, resolve problems and help you with whatever else you need. You can depend on us to grow together!