HEAT DESIGN EQUIPMENT INC obtained a patent in 1993 for an apparatus that provides radiant heat energy over a large surface area. The heaters use propane gas as an energy source, and do not need auxiliary batteries and blowers for operation. The heater was originally designed to service the hot-in-place recycling industry. In 1995, the province of Quebec began specifying a hot joint for road construction and the asphalt industry had a difficult time finding equipment that would heat the joint at acceptable paving speeds. Part of the specification was that there could not be an open flame.
This hot in place technology applied using a 48 foot train of patented HDE infrared heaters ensures a seamless compacted bond between the old pavement and the rejuvenated area, extending the life of the pavement to match the mat properties.
HDE supplied its first heater in 1995 and since then, has been a major supplier of Infrared Heating Equipment to meet this specification, when paving in echelon was not practical. Other government bodies are considering hot joint specifications because of severe longitudinal joint problems and HDE will continue to supply its high intensity heaters to meet this need.
In 2002 HDE began marketing its technology worldwide, expanding its unique technology into the asphalt patching industry after 6 years of developing various patching equipment, through a related company involved in infrared asphalt repair. Our experience has resulted in equipment that is profit oriented in asphalt patching, and is also multifunctional. To this day We operate our contracting business as a full time business which also serves the purpose of demonstrating our equipment and making changes as we require to make our units more profitable to contractors.
In 2003 HDE obtained various international patents on a new replaceable heater cartridge that minimized downtime for repair of infrared equipment and ensured easy replacement anywhere in the world.