Frequently Asked Questions: Q: Where can I get the machines? A: Contact us & we will get you in touch with the nearest distributor. Machines are shipped from Canada, USA, Europe & Australia. Q: How does it work? A: 1000 degree centigrade heat is generated by propane which acts directly on the weeds and wind borne seeds and makes the protein cells explode. Q: Is there any noise? A: Absolutely none. Q: What happens to the grass? A: This is a non selective method of weed control. Q: How many times do I have to use this? A: Results are instant. New areas have to be treated more frequently and once a maintenance program is established they can be treated less frequently. Best conditions are when used in dry weather and low degree of relative humidity in the air. Q: Does it work in the rain? A: Yes it will but best conditions are when used in dry weather when there is a low degree of relative humidity in the air. Q: How long does an application take? A: Machines on wheels are operated at approximately a speed of 1.5 km. per hr. ( 1 m.p.h. ). On stationary machines the application time is approximately 1.5 seconds. Q: How much does it cost to operate? A: 100 sq. ft. costs approximately 2 cents. Q: Where can it be used? A: It can be used on practically all types of surfaces without danger, including stone, paving, gravel walkways, earth & concrete. Q: What weeds does it control? A: It will control all weeds, however, the nature of vegetation like deep rooted plants will require treatments more often.