How long will a 20 lb propane tank last?
Category:
home and garden
indoor environmental quality
A standard 20 lb propane tank should last about 18-20 hours on most grills. We always recommend that you have an extra tank on hand because you don't want to run out in the middle of a bbq!
Likewise, how long will a 20 lb propane tank last at 50000 BTU?
A pound (not gallon) of propane has about 21,600 BTUs gross heat input. At a high level, (21,600x20)= 432,000 BTUs capacity in a full tank. 432,000/50,000 = 8.64 hours.
Hereof, how long will a 20 lb propane tank last at 30000 BTU?
No. of BTUs | Lb Usage per Hour | No. of Hours |
---|---|---|
10000 | 0.5 lbs | 40 |
20000 | 0.9 lbs | 22 |
30000 | 1.4 lbs | 15 |
An empty 20 lb tank will hold about 4.7 gallons of propane. That is $18.47 at $3.93 per gallon, which is the low quantity price (I just paid $3.44 per gallon when filling several tanks). The exchange is about the same price.