Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to make a brick kiln [title] Decide on your kiln's measurements. [step] This may be determined by the size of your kiln shelf or how much space you have for a kiln. [title] Find the wind's direction for your kiln.

Ending1: [step] Use the kiln thermometer to determine if the wind is blowing from north or west. [substeps] The prevailing wind range should be less than 50% or much more. Ending2: [step] Aim at the direction the wind is blowing. [substeps] Turn your kiln on medium heat to catch any large pieces of rock floating on the top. Ending3: [step] Hold a pressure line and gauge the wind pressure on the kiln shelf until you know how intense it will be. [title] Strip 1-1/4 " large rocks and cut these out. Ending4: [step] Plan to build the kiln so the wind can enter into it from the top. [title] Put down a layer of dirt in your kiln's location.

Answer format: ending1/ending2/ending3/ending4