In greenhouse applications Gasmaster Industries hot water boilers and heaters are an ideal solution. They allow for the extraction of the maximum amount of heat from the boiler without jeopardizing the boiler’s integrity. Gasmaster Industries warranty for its boilers includes a 20 year non prorated thermal shock provision. Return water can be just above freezing without voiding the warranty. Additionally, it is possible to adjust the units for zero CO, permitting the use of exhaust gases rich in CO2 to be vented directly into the greenhouse to provide heat as well. With efficiency as high as 98% possible, stainless steel materials of construction and low noise levels even at maximum output (high fire), Gasmaster Industries products are a superb addition to any greenhouse.