88. Light according to instructions on heater or withinowner's manual.9. Make sure the heater has the proper gas regulator forthe application. A regulator must be connected to thegas supply so that gas pressure at the inlet to the gasvalve is regulated within the range specified on thedataplate at all times. Contact your gas supplier, orthe L.B. White Co., Inc. if you have any questions.10. This heater is configured for use for L.P. gas vaporwithdrawal only. Do not use the heater in an L.P. gasliquid withdrawal system or application. If you are indoubt, contact the L.B. White Co., Inc.11. The heater must be installed so as not to interferewith or obstruct normal exits, emergency exits, doorsand walkways.12. Railing, fencing or suitable substitute materials mustbe used to keep the heating equipment from anypeople using and visiting the structure.13. The heater shall be located so that rain, ice, or snowdrainage from the structure does not af fectequipment operation. If the heater is mountedoutside, it must be mounted above any pooled orstanding water. If the heater is to be located on theground, a surrounding trench is recommended todrain any rain, ice or snow away from the unit.14. The ground and surrounding terrain must be clearedof any combustible vegetation and other combustiblematerials when the heater is utilized outside.15. Eventually, like all electrical/mechanical devices, thethermostat can fail. Thermostat failure may result inan underheating condition. The thermostat should betested to make sure it turns the heater on and offwithin a temperature differential of ±3°F.16. Take time to understand how to operate and maintainthe heater by using this Owner’s Manual. Make sureyou know how to shut off the gas supply to thebuilding and also to the individual heater. Contactyour fuel gas supplier if you have any questions.17. Any defects found in performing any of the service ormaintenance procedures must be eliminated anddefective parts replaced immediately. The heatermust be retested by properly qualified servicepersonnel before placing the heater back into use.The vaporization of propane is affected by several factors:the surface area of the container, the liquid level ofpropane, temperature surrounding the container, and therelative humidity. All of these factors are specific to a site.Therefore, a degree of experience and judgement isrequired to select the proper propane supply.Although experience is the best guide, the followingrecommendations can be used as a starting point. Thetable is based on experience in northern climates wherecold weather and high humidity are prevalent in the winter.If more or less favorable conditions prevail at a specific site,adjustments can be made on the basis of experience.RReeccoommmmeennddeedd GGaass SSuuppppllyyPropane Supply Tank: Heater(s)/Container:500 gallon 11,000 gallon 2If more than one gas supply container is used per heater,the containers must be manifolded together to allow vaporwithdrawal simultaneously from multiple containers.Manifold system shall be in accordance with NFPA 58.GAS SUPPLY SIZING