How to Connect 100-lb Propane Tank to Water Heater

Updated 09/16/2019 | Published 09/13/2019

Products Featured in This Question

Camco Single Stage Propane Regulator - 200,000 Btu/Hr

(39)

$37.62

MB Sturgis Propane Pigtail Hose - POL x 1/4" Male Inverted Flare - 12'

(359)

$38.65

MB Sturgis Propane Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4'

(495)

$24.95

Question:

Can I use a 100 lb propane tank for use with a 400,000BTU heater? What hose size and regulator is needed.

asked by: George

Expert Reply:

In order to connect a water heater of that size/capabilities, you'll need a regulator that is designed to handle that amount of propane flow. For that reason you'll need to use the MB Sturgis Horizontal 2-Stage Propane Regulator # 108221 which is rated for up to 400,000 BTU and equipped with an 11" water column outlet to assist with flow efficiency in cold temperatures.

From there, you'll need a male pigtail hose like # 100019-144 to connect your propane tank to the regulator and if the gas inlet on your water heater has a 1/2 female inverted flare fitting you will use # 100383-48-MBS . If your water heater has a different sized or type of fitting, let me know and I can recommend the correct fitting hose.

expert reply by: Erik B