Gotta thaw my grey tank!!! Here we go again!
Well, I hit the trail Jan. 26 and headed into the wild wild winter.... I know to be careful with my water usage and have learned to wash things with a thimble full of water and all that, but there ...
Forum Discussion
Hi Bob,
Now you understand why I use radiant heaters for thawing? You do have to be darn careful with them.
Change of state from ice to water requires about 144 btu's per pound. That would take one pound of liquid water from 0 C to 80 c (or from 32 f to 176 f)
If your grey tank is 30 gallons it weighs about 240 pounds. So to thaw it is going to take about 34500 btus. So your 1500 watt heater is going to need to run for seven hours--assuming 100% of the heat went into the tank (which of course, it doesn't).
Now you understand why I use radiant heaters for thawing? You do have to be darn careful with them.
Change of state from ice to water requires about 144 btu's per pound. That would take one pound of liquid water from 0 C to 80 c (or from 32 f to 176 f)
If your grey tank is 30 gallons it weighs about 240 pounds. So to thaw it is going to take about 34500 btus. So your 1500 watt heater is going to need to run for seven hours--assuming 100% of the heat went into the tank (which of course, it doesn't).
