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Joined: Oct 2002
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What size heat gun is good for underground splice kits and heating up pvc? Will 1500 watts do? I'm use to using a torch and that's too risky on the insulation of the wire being spiced. And also, is there any particular brand that works better etc... Thanks
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Joined: Jul 2004
Posts: 9,788 Likes: 14
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I have one from Harbor Fright that seems to work cooking PVC pipe and shrink tube. I think it is 1400-1500w.
I always seem, to scorch PVC if I try to heat it with a torch.
Greg Fretwell
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Joined: Jul 2007
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Just an FYI, using a blow torch voiles the listing of PVC piping
"Live Awesome!" - Kevin Carosa
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Joined: Jul 2004
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How does U/L think about the tail pipe of your truck (my go to pipe heater if I don't have the gun)
I assume we all know the "cold coupler" trick.
Greg Fretwell
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Joined: Mar 2004
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The one from Ace hardware works great. We had one for years, used it on PVC and shrink tubing. One day while working in a ditch it just died. Messed with it for a while then pitched it and got another one. Looked at the instructions with the new one and read about the thermal cutoff. Dug the old one out of the trash and it worked again. Now we got two.
Last edited by BigB; 12/02/15 08:26 PM.
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Joined: May 2005
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Thermal cutoffs can be very good things. I bought a non-working table saw super-cheap from Sears figuring that I could fiddle with it and get it running again. Turns out that the cutoff had tripped and nobody thought to push the little red button back in...absolutely nothing was wrong. Got a $700 tool for a little more than $100. 
Ghost307
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Joined: Feb 2004
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I have a 1200W Wagner heat gun that I got from Sears for $25. It hits 1100°F and the temp is adjustable.
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Joined: Jan 2005
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Depending on the amount of work planned, maybe you should consider alternatives.
If you have power available ... by all accounts, you' can't beat a heating blanket. I haven't yet had the luxury, but others tell me they're awesome - but you MUST plug the pipe ends.
If there's no power ... well, I've had awesome results with an ordinary charcoal BBQ. The best aspects are an even heat over a large area, and the fact that you only need light it once. I've used this for up to 3" Schedule 80.
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Joined: Jul 2002
Posts: 8,432 Likes: 3
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What size heat gun is good for underground splice kits and heating up pvc? Will 1500 watts do? I'm use to using a torch and that's too risky on the insulation of the wire being spiced. And also, is there any particular brand that works better etc... Thanks I use the 3M splice kits with the insulating resin inside the outer body of the entire splice for underground cables, no heat required. It's like a two part epoxy, you just joint your cable, cover the splice with the outer cover, this clips together, and you fill each end of the splice cover with the epoxy solution, wait for it to harden (about 30 minutes), job done.
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