Introducing the new Sentinel GPS ICG-30NG Intelligent CO2 Generator for Natural Gas configurations. Although designed to work with the new Sentinel Intelligent CO2 Enrichment (S.I.C.E.) with patented interface, the ICG-30 Intelligent CO2 Generator is fully compatible with older Sentinel products like the CHHC-4, CPPM-4, recycle timers or even competitor environmental controller units much in the same way as the Sentinel VCG-27. The user has the ability to pre-program the Sentinel ICG-30 Intelligent CO2 Generator burner assembly to operate in 3 configurations from low output to high output every time the unit is activated ... smarter controls for smarter gardeners! All electronics, valves and gas fittings are enclosed in a heavy-duty, powder coated steel frame for unmatched durability. Sentinel Intelligent ignition and control module eliminates open pilot flames and provides for maximum safety Variable multi-mode C02 outputs up to over 31 cubic feet per hour New Sentinel proprietary stainless steel, low-NOX burner assembly is cleaner and more efficient than ANY C02 generator Advanced, multi-stage solenoid valve provides consistent operation and redundant safety Unit comes complete with appropriate gas valve and hose assembly RoHS compliant for environmental friendlinessTip-over switch automatically shuts off unit Specifications: C02 Cu Ft/Hour Output Mode 1: 9 C02 Cu Ft/Hour Output Mode 2: 18 C02 Cu Ft/Hour Output Mode 3: 27 Burner Output BTUIHR (kw) Model1: 9,000 BTU (2.6 kw) Burner Output BTUIHR (kw) Mode2 : 18,000 BTU (5.3 kw) Burner Output BTUIHR (kw) Mode3: 27,000 BTU (7.9 kw) Gas pressure: 4.8"WC (1.15 kpa) Dimensions: 15.7"(40cm) x 9.8"(25cm) x 19.7(50cm) Weight: 25.1 lbs.(ll.4 kg) Voltage Requirements: 24V DC ‹500mA max / ‹40mA Standby