30 pages

Gas Line Size for Water Heaters by Input and Run Length

Quick answer

Gas Line Size for Water Heaters by Input and Run Length: 30 pages. Gas line upsizing is routinely the largest single line in a tankless quote and the one most often missed. These pages read the published capacity table for every input and length combination.

40k BTU, 10 ft A 40,000 BTU natural gas water heater draws about 39 cubic feet per hour. Over a 10 foot run the NFPA 54 low pressure table calls
40k BTU, 20 ft A 40,000 BTU natural gas water heater draws about 39 cubic feet per hour. Over a 20 foot run the NFPA 54 low pressure table calls
40k BTU, 30 ft A 40,000 BTU natural gas water heater draws about 39 cubic feet per hour. Over a 30 foot run the NFPA 54 low pressure table calls
40k BTU, 40 ft A 40,000 BTU natural gas water heater draws about 39 cubic feet per hour. Over a 40 foot run the NFPA 54 low pressure table calls
40k BTU, 60 ft A 40,000 BTU natural gas water heater draws about 39 cubic feet per hour. Over a 60 foot run the NFPA 54 low pressure table calls
75k BTU, 10 ft A 75,000 BTU natural gas water heater draws about 73 cubic feet per hour. Over a 10 foot run the NFPA 54 low pressure table calls
75k BTU, 20 ft A 75,000 BTU natural gas water heater draws about 73 cubic feet per hour. Over a 20 foot run the NFPA 54 low pressure table calls
75k BTU, 30 ft A 75,000 BTU natural gas water heater draws about 73 cubic feet per hour. Over a 30 foot run the NFPA 54 low pressure table calls
75k BTU, 40 ft A 75,000 BTU natural gas water heater draws about 73 cubic feet per hour. Over a 40 foot run the NFPA 54 low pressure table calls
75k BTU, 60 ft A 75,000 BTU natural gas water heater draws about 73 cubic feet per hour. Over a 60 foot run the NFPA 54 low pressure table calls
120k BTU, 10 ft A 120,000 BTU natural gas water heater draws about 117 cubic feet per hour. Over a 10 foot run the NFPA 54 low pressure table call
120k BTU, 20 ft A 120,000 BTU natural gas water heater draws about 117 cubic feet per hour. Over a 20 foot run the NFPA 54 low pressure table call
120k BTU, 30 ft A 120,000 BTU natural gas water heater draws about 117 cubic feet per hour. Over a 30 foot run the NFPA 54 low pressure table call
120k BTU, 40 ft A 120,000 BTU natural gas water heater draws about 117 cubic feet per hour. Over a 40 foot run the NFPA 54 low pressure table call
120k BTU, 60 ft A 120,000 BTU natural gas water heater draws about 117 cubic feet per hour. Over a 60 foot run the NFPA 54 low pressure table call
150k BTU, 10 ft A 150,000 BTU natural gas water heater draws about 146 cubic feet per hour. Over a 10 foot run the NFPA 54 low pressure table call
150k BTU, 20 ft A 150,000 BTU natural gas water heater draws about 146 cubic feet per hour. Over a 20 foot run the NFPA 54 low pressure table call
150k BTU, 30 ft A 150,000 BTU natural gas water heater draws about 146 cubic feet per hour. Over a 30 foot run the NFPA 54 low pressure table call
150k BTU, 40 ft A 150,000 BTU natural gas water heater draws about 146 cubic feet per hour. Over a 40 foot run the NFPA 54 low pressure table call
150k BTU, 60 ft A 150,000 BTU natural gas water heater draws about 146 cubic feet per hour. Over a 60 foot run the NFPA 54 low pressure table call
180k BTU, 10 ft A 180,000 BTU natural gas water heater draws about 175 cubic feet per hour. Over a 10 foot run the NFPA 54 low pressure table call
180k BTU, 20 ft A 180,000 BTU natural gas water heater draws about 175 cubic feet per hour. Over a 20 foot run the NFPA 54 low pressure table call
180k BTU, 30 ft A 180,000 BTU natural gas water heater draws about 175 cubic feet per hour. Over a 30 foot run the NFPA 54 low pressure table call
180k BTU, 40 ft A 180,000 BTU natural gas water heater draws about 175 cubic feet per hour. Over a 40 foot run the NFPA 54 low pressure table call
180k BTU, 60 ft A 180,000 BTU natural gas water heater draws about 175 cubic feet per hour. Over a 60 foot run the NFPA 54 low pressure table call
199k BTU, 10 ft A 199,000 BTU natural gas water heater draws about 193 cubic feet per hour. Over a 10 foot run the NFPA 54 low pressure table call
199k BTU, 20 ft A 199,000 BTU natural gas water heater draws about 193 cubic feet per hour. Over a 20 foot run the NFPA 54 low pressure table call
199k BTU, 30 ft A 199,000 BTU natural gas water heater draws about 193 cubic feet per hour. Over a 30 foot run the NFPA 54 low pressure table call
199k BTU, 40 ft A 199,000 BTU natural gas water heater draws about 193 cubic feet per hour. Over a 40 foot run the NFPA 54 low pressure table call
199k BTU, 60 ft A 199,000 BTU natural gas water heater draws about 193 cubic feet per hour. Over a 60 foot run the NFPA 54 low pressure table call