[Damonceles]

what temps will u guys work in and still offer a no crack guarantee?
half our customers will turn on the main units and double filter it and replace often. the other half argue that doing that voids the units warranty if they turn it on and try to run propane/kerosene heaters(which is a wet heat that is horrible)

 

[jmr]

proform or usg tell you nothing under 50 degrees i believe.. i wont even go that cold.. i'd say 60-70 degrees..