All AC here so not that much help. I think you need a blower more than a
fan. The blower must be powerful enough to still have flow at some static
pressure, but not so powerful as it will damage the plastic. I use a
Grainger 4C440 for a 30' by 100' greenhouse. It has a 1/125 HP motor and
produces 39 CFM at .4 inches static pressure. You might want to look at
Grainger 4C814.

Pat


"Rob Halgren" wrote in message
...
No, not Washington DC fans... Are there any of those?

I'm looking for a fan that I can use to inflate my greenhouse. I can find
AC inflation fans aplenty. Heck, I already have two of them... But a
DC fan would be more efficient, and work well with my backup greenhouse
power. Anybody ever seen something that would work? Googling is getting
me nowhere.

Thanks

Rob

--
Rob's Rules: http://www.msu.edu/~halgren
1) There is always room for one more orchid
2) There is always room for two more orchids
2a. See rule 1
3) When one has insufficient credit to purchase
more orchids, obtain more credit
LittlefrogFarm is open - e-mail me for a list )