ϭϵ WĂŐĞ
ͲEĂƚƵƌĂů'ĂƐ^ƵƉƉůLJWŝƉŝŶŐͲ
DĂdžŝŵƵŵĚĞůŝǀĞƌLJĐĂƉĂĐŝƚLJŽĨĐƵďŝĐĨĞĞƚŽĨŐĂƐƉĞƌŚŽƵƌŽĨ/W^ƉŝƉĞĐĂƌƌLJŝŶŐEĂƚƵƌĂů'ĂƐǁŝƚŚϬ͘ϲϬƐƉĞĐŝĨŝĐŐƌĂǀŝƚLJ
ďĂƐĞĚŽŶƉƌĞƐƐƵƌĞĚƌŽƉŽĨϬ͘ϱΗt͘͘
Based on energy content of 1,000 BTU/Cubic ft.: The water heater requires 140 Cubic ft./hr for the 110U (T-KJr2U)
models, 190 Cubic ft./hr for the 310U (T-K4U) models, and 199 Cubic ft./hr for the 510U (T-D2U) models.
Pipe size Length
Diameter 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 125' 150' 200'
3/4"
ϯϲϯ Ϯϰϵ ϮϬϬ ϭϳϭ ϭϱϮ ϭϯϴ ϭϮϳ ϭϭϴ ϭϭϭ ϭϬϰ ϵϯ ϴϰ ϳϮ
1" ϲϴϰ ϰϳϬ ϯϳϳ ϯϮϯ Ϯϴϲ Ϯϱϵ Ϯϯϵ ϮϮϮ ϮϬϴ ϭϵϳ ϭϳϰ ϭϱϴ ϭϯϱ
1
1/4"
ϭ͕ϰϬϰ ϵϲϱ ϳϳϱ ϲϲϯ ϱϴϴ ϱϯϮ ϰϵϬ ϰϱϲ ϰϮϴ ϰϬϰ ϯϱϴ ϯϮϰ Ϯϳϴ
1
1/2"
Ϯ͕ϭϬϯ ϭ͕ϰϰϱ ϭ͕ϭϲϭ ϵϵϯ ϴϴϬ ϳϵϴ ϳϯϰ ϲϴϯ ϲϰϭ ϲϬϱ ϱϯϲ ϰϴϲ ϰϭϲ
2" ϰ͕ϬϱϬ Ϯ͕ϳϴϰ Ϯ͕Ϯϯϱ ϭ͕ϵϭϯ ϭ͕ϲϵϲ ϭ͕ϱϯϲ ϭ͕ϰϭϯ ϭ͕ϯϭϱ ϭ͕Ϯϯϰ ϭ͕ϭϲϱ ϭ͕Ϭϯϯ ϵϯϲ ϴϬϭ
Unit: Cubic feet per hour
ĂƐĞĚŽŶŶĞƌŐLJŽŶƚĞŶƚŽĨϭ͕ϬϬϬdhͬƵďŝĐĨƚ͗
ŝǀŝĚĞĞĂĐŚĂƉƉůŝĂŶĐĞΖƐdhƌĞƋƵŝƌĞŵĞŶƚďLJϭ͕ϬϬϬdhͬŚƚŽŐĞƚƚŚĞĂƉƉůŝĂŶĐĞƐƵďŝĐ&ƚ͘ƌĞƋƵŝƌĞŵĞŶƚ͘
dĂŬĞŝŶƚŽĂĐĐŽƵŶƚƚŚĞĚŝƐƚĂŶĐĞƚŚĞĂƉƉůŝĂŶĐĞŝƐĨƌŽŵƚŚĞŐĂƐŵĞƚĞƌ͕ůŽŽŬŝŶƚŚĞĂďŽǀĞŐĂƐĐŚĂƌƚƚŽƉƌŽƉĞƌůLJ
ƐŝnjĞƚŚĞůŝŶĞ͘
&ŽƌƐĞĐƚŝŽŶƐŽĨƚŚĞŐĂƐůŝŶĞƐƵƉƉůLJŝŶŐŐĂƐƚŽŵŽƌĞƚŚĂŶŽŶĞĂƉƉůŝĂŶĐĞ;dž͗WŽŝŶƚƚŽWŽŝŶƚͿ͕ĂĚĚƵƉƚŚĞĐƵďŝĐ
Ĩƚ͘ƌĞƋƵŝƌĞŵĞŶƚƐŽĨƚŚĞĂƉƉůŝĂŶĐĞƐƚŚĂƚĂƌĞďĞŝŶŐƐƵƉƉůŝĞĚďLJƚŚĂƚƐĞĐƚŝŽŶ͕ĂŶĚƐŝnjĞƚŽƚŚĞĨĂƌƚŚĞƐƚĂƉƉůŝĂŶĐĞ͘
&Žƌ džĂŵƉůĞ͗ dŚĞ ƐĞĐƚŝŽŶ ĨƌŽŵ ƚŽ ƐƵƉƉůŝĞƐ ŐĂƐ ƚŽ ƚŚĞ ĨƵƌŶĂĐĞ͕ ƌĂŶŐĞ ĂŶĚ ĚƌLJĞƌ͘ ĚĚŝŶŐ ƵƉ ƚŚĞ dh
ƌĞƋƵŝƌĞŵĞŶƚƐ ĂŶĚ ĚŝǀŝĚŝŶŐ ďLJ ϭ͕ϬϬϬ LJŝĞůĚƐ Ă ĐƵďŝĐ Ĩƚ͘ ƌĞƋƵŝƌĞŵĞŶƚ ŽĨ ϮϮϬ ĐƵďŝĐ Ĩƚ͘ ŽĨ ŐĂƐ͘ dŚĞ ĨĂƌƚŚĞƐƚ
ĂƉƉůŝĂŶĐĞŝƐƚŚĞƌĂŶŐĞ͕ǁŚŝĐŚŝƐϱϬĨƚ͘ĂǁĂLJĨƌŽŵƚŚĞŵĞƚĞƌ͘>ŽŽŬŝŶŐĂƚƚŚĞĂďŽǀĞĐŚĂƌƚ͕ĂŶĚƵŶĚĞƌƚŚĞĐŽůƵŵŶ
ŽĨϱϬĨƚ͕͘^ĞĐƚŝŽŶƚŽŶĞĞĚƐƚŽďĞϭΗŝŶŽƌĚĞƌƚŽƐƵƉƉůLJϮϮϬĐƵďŝĐĨƚ͘
Water
heater
ϭϵϵ͕ϬϬϬdhͬŚ
ƌLJĞƌ
ϯϱ͕ϬϬϬdhͬŚ
Gas meter
&ƵƌŶĂĐĞ
ϭϮϬ͕ϬϬϬdhͬŚ
ZĂŶŐĞ
ϲϱ͕ϬϬϬdhͬŚ
A
B
C
ϭϬΖ>ĞŶŐƚŚ
ϭͬϮΗWŝƉĞƐŝnjĞ
ϭϱΖ>ĞŶŐƚŚ
ϭͬϮΗWŝƉĞƐŝnjĞ
ϭϱΖ>ĞŶŐƚŚ
ϭΗWŝƉĞƐŝnjĞ
ϭϬΖ>ĞŶŐƚŚ
ϯͬϰΗWŝƉĞƐŝnjĞ
ϭϬΖ>ĞŶŐƚŚ
ϭΗWŝƉĞƐŝnjĞ
ϱΖ>ĞŶŐƚŚ
ϭͲϭͬϰΗWŝƉĞƐŝnjĞ
ϭϬΖ>ĞŶŐƚŚ
3/4" Pipe size
ϱΖ>ĞŶŐƚŚ
ϭͲϭͬϰΗWŝƉĞƐŝnjĞ
Gas sizing example
(Natural Gas)
/ŶƐƚĂůůĂƟŽŶ
/ŶƐƚĂůůĂƟŽŶDĂŶƵĂů
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