Seasider3610
Well-known member
Heating hire for Sports Pitches & Leisure Centres - Andrews Sykes
Temporary heater hire, same day delivery and a wide range of heaters available for short or long term hire, 24/7 service, depots nationwide 0800 211 611
www.andrews-sykes.com
30 seconds google.
It doesn’t mention heaters for growing grass but it does mention heaters for frost or frozen pitches so sports events don’t get called off.
It would obviously take some planing though