Contractor Talk - Professional Construction and Remodeling Forum banner

Electric Blankets for Ground Thaw

8021 Views 8 Replies 4 Participants Last post by  rshackleford
i want to know your experience. do they work? how much frost and how fast? 20 amp circuit realistic?

any comments at all please.
1 - 6 of 9 Posts
i am not a concrete contractor.

the temperature today was 10 below, we will have this cold snap for a few days and then we will be in the twenties. we have about a foot of frost.

we are trying to protect some scattered areas from frost so we can excavate for water line instalation. some areas are a trench width and 10 feet long others are 50 feet long.

we cannot use fire or anything like that. we are thinking about blankets so we could plug them into the invidual homes that water will serve.

we have about 50 homes to service.
See less See more
A GC that we do some work for has them. They claim that it will take 12" of frost out of the ground.

not to be a smart a** but that is the exact kind of answer i wasn't looking for!!!

when you explained the ground loop heaters and how long it takes, now that's the answer i was looking for. it involved a depth, a time, and a good or bad review.

thanks for giving me some info though.
See less See more
i found that they make them in 3' x 25' and three can be hooked together.

powerblanket is the brand.
we own a ground loop heater. i think we have 1000 or so feet of hose. this only works for one area, although it does work quite well and we have been able to thaw several feet of ground.

however, we have 50 scattered locations to thaw, so i am looking for something a bit more self contained.

it looks like the only manufacturer might be Powerblanket. has anyone used these?
See less See more
we purchased 6 blankets 6' wide x 25' long.
1 - 6 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.