All Departments

0077578015736

# 30 ft. Automatic Electric Heat Cable Kit

• For use on metal and plastic water pipes
• Helps keep water flowing down to -40 degrees Fahrenheit
• Plug has a power indicator light
\$39.24 /each

## Product Overview

The Thermwell 30 ft. Automatic Electric Heat Cable Kit is designed for use on metal and plastic water pipes to help prevent the pipes from freezing. This kit has a built-in thermostat. It comes pre-assembled for easy installation.

• For use on metal and plastic water pipes
• 1 year warranty
• Helps keep water flowing down to -40 degrees Fahrenheit
• Plug has a power indicator light

Search

## Customer Questions & Answers

125 Questions196 Answers

# Customer Questions & Answers

30 ft. Automatic Electric Heat Cable Kit

## Ask your questions. Share your answers.

Clear Search Term

Sort By:

4 answers

# How many feet of heat tape is required to tightly spiral wind around six feet of 3/4 inch copper tubing/pipe?

This question is from 30 ft. Automatic Electric Heat Cable Kit
Asked by
August 16, 2014
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

## Answers (4)

Asked by
Hudson Falls, NY, USA
Home Improvement Profile: Professional
August 29, 2014
Answer:
The outside diameter of 3/4 inch copper tubing pipe is .875 inches. Using the formula for circumference, π (3.14) multiple times diameter; then the circumference of the pipe is 1.37375 inches. Given that the heat tape is .75 inches wide then a one foot of pipe would have 16 individual turns per foot ignoring that spiral turns would be necessary. Now 16 turns times the circumference of 1.37375 inches
The outside diameter of 3/4 inch copper tubing pipe is .875 inches. Using the formula for circumference, π (3.14) multiple times diameter; then the circumference of the pipe is 1.37375 inches. Given that the heat tape is .75 inches wide then a one foot of pipe would have 16 individual turns per foot ignoring that spiral turns would be necessary. Now 16 turns times the circumference of 1.37375 inches equals 21.98 inches per foot. This assumes the thickness of the heat tape does not increase the wrapping circumference and there by increasing the require tape length required to make 16 turns. So approximately 22 inches is required per foot of copper tubing pipe, so it could be estimated that 6 feet of pipe would require 132 inches of heat tape or approximately11 feet of the actual heat tape to completely cover 6 feet of copper pipe. In addition it would require 96 turns without kinking or twisting the heat tape and would likely be a difficult task on an installed pipe.
-7points
8out of 23found this answer helpful.
Was this helpful?helpful8unhelpful15

Asked by
Katy, TX
Home Improvement Profile: DIYer
August 28, 2014
Answer:
I just took one of mine and wrapped it around a 3/4" pipe and to go 1 foot it took 80" of tape. They don't suggest you wrap it that tight together, plus following the instructions you should then wrap it with their insulation.
-2points
4out of 10found this answer helpful.
Was this helpful?helpful4unhelpful6

Asked by
New Jersey
August 19, 2014
Answer:
It would only take 6 FT of Heat Cable to insulate this pipe since this is not made to wrap around the pipe.
+13points
15out of 17found this answer helpful.
Was this helpful?helpful15unhelpful2

Asked by
New Jersey
August 19, 2014
Answer:
This product does not spiral around the pipe. It is made to run along side the pipe. You would only need a 6' heat cable to protect this length of pipe.
+14points
18out of 22found this answer helpful.
Was this helpful?helpful18unhelpful4

3 answers

# What are the consequences of using this tape on a hard plastic sewer line?

This question is from 30 ft. Automatic Electric Heat Cable Kit
Asked by
Alberta, Canada
October 7, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

## Answers (3)

Asked by
Mattituck, NY
Home Improvement Profile: Professional
October 31, 2015
Answer:
Frost King Expert implies that water in a water pipe is constantly flowing. That is not the case. Water in a water pipe generally is stagnant - that is, not flowing. The fact that water is stationary in the pipe greatly contributes to its freezing as flowing water inhibits freezing. We all remember the (unreliable) trick of turning on a faucet so that water trickles out to help prevent freezing pipes.
Frost King Expert implies that water in a water pipe is constantly flowing. That is not the case. Water in a water pipe generally is stagnant - that is, not flowing. The fact that water is stationary in the pipe greatly contributes to its freezing as flowing water inhibits freezing. We all remember the (unreliable) trick of turning on a faucet so that water trickles out to help prevent freezing pipes. There may be other reasons for not using this product on a plastic drain pipe: no metal to provide the necessary source for monitoring the temperature by the thermostat would be the main one, I would think. Another might be that the materials have not been chosen to withstand adverse conditions of the outdoors. A third might be that outdoor temperatures might average too low for this product to be effective. The reason given by the Expert is wrong.
+2points
3out of 4found this answer helpful.
Was this helpful?helpful3unhelpful1

Asked by
Katy, TX
Home Improvement Profile: DIYer
October 9, 2015
Answer:
There shouldn't be any. Just follow the instructions on installation and insulating it and it should be ok. The only info not given is where you are located. Is the sewer pipe in the ground, under a mobile home or in the open and exposed to the elements. If it getting really cold where are then it might not be able to keep it warm enough so it doesn't freeze. If it's out in the open to the elements it
There shouldn't be any. Just follow the instructions on installation and insulating it and it should be ok. The only info not given is where you are located. Is the sewer pipe in the ground, under a mobile home or in the open and exposed to the elements. If it getting really cold where are then it might not be able to keep it warm enough so it doesn't freeze. If it's out in the open to the elements it might have a hard time keeping it from freezing. These heat tapes don't get hot they just get warm so if exposed to hard elements of the weather they won't keep up. Sewer lines and water lines are two different things. Water lines are full of water and absorb the heat where as sewer lines are mostly filled with air/gas and don't hold the heat very well.
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

October 9, 2015
Answer:
Nothing will happen. The water in the sewer line will probably freeze since the Heat Cable is made for supply lines, not waste lines. It cannot read the temperature and work properly since there is not a constant flow of water.
-4points
3out of 10found this answer helpful.
Was this helpful?helpful3unhelpful7

3 answers

# Can this be used on VERTICAL water pipes?

This question is from 30 ft. Automatic Electric Heat Cable Kit
Asked by
Plymouth, MI
February 21, 2015
My water pipes come out of the cement floor of my unheated garage vertically; they are only about one foot in height (then the washing machine and laundry tub hoses attach at the top of these pipes). So is it ok to use it on the vertical pipes? I'll probably have excess cable too so do I just double it up?
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

## Answers (3)

Asked by
Oklahoma City
April 22, 2015
Answer:
Yup. I did. Used foil tape to hold mine to vertical 2 inch gas line
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0

Asked by
Katy, TX
Home Improvement Profile: Professional
February 22, 2015
Answer:
Yes the direction of the pipe doesn't make any difference. I have purchased 6', but not sure if they make a shorter one than that. You don't want to overlap the tapes. If you have extra I would just leave it lay on the floor or dangle from the top of the pipe. Be sure to insulate over the heat tape too.
+2points
2out of 2found this answer helpful.
Was this helpful?helpful2unhelpful0

February 21, 2015
Answer:
It is ok to use just. Do not double up the cable.
+3points
3out of 3found this answer helpful.
Was this helpful?helpful3unhelpful0

3 answers

# is this product submersible in water?

This question is from 30 ft. Automatic Electric Heat Cable Kit
Asked by
point jpleasant new jersey
February 17, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

## Answers (3)

Asked by
Oklahoma City
April 22, 2015
Answer:
No
+3points
3out of 3found this answer helpful.
Was this helpful?helpful3unhelpful0

Asked by
Katy, TX
Home Improvement Profile: Professional
February 18, 2015
Answer:
NO, This is not supposed to be in water or exposed to the elements of weather. They look and feel like they are sealed, but the manufacture does not recommend putting them in water.
+5points
5out of 5found this answer helpful.
Was this helpful?helpful5unhelpful0

February 17, 2015
Answer:
NO!
+1point
2out of 3found this answer helpful.
Was this helpful?helpful2unhelpful1
...»
...»

## Customer Reviews

Rated 3.9 out of 5 by 19 reviewers.
Rated 5.0 out of 5.0 by Works in gutters too! Contrary to what the Home Depot employees will tell you, this item can be used in a gutter. The manufacturer confirms this on the Home Depot Q&A section. It works well to eliminate ice dams in gutters. I only plug the cable in when needed and has lasted all winter. March 8, 2016
Rated 5.0 out of 5.0 by Great heat!! Used this to prevent bulk rock salt from freezing in salt spreader. ( Not designed use) bulk salt if moist will freeze in single digits rendering salt useless when needed most. In stead of having to break apart and shovel out of hopper I can leave it in for frequent snow storms. Kept salt from freezing last night when it got down to -5f. Same salt froze in my loader bucket. Bottom line if it can do this it will work for your pipes. February 18, 2015
Rated 5.0 out of 5.0 by No Problems No problems. Easy to understand ane use. What more can I say. March 29, 2016
Rated 4.0 out of 5.0 by my furnace drain freezes in winter and shuts down my fuenace. I am using this to keep drain from freezing on a outside wall. Easy to use. Could use more info on cut on and off temp. October 20, 2015
Rated 2.0 out of 5.0 by Limited application I purchased this to heat the condensation pump that drains to the exterior. Unfortunately, it only turns the heat on when the pipe hits 38 degrees. This will not happen in the interior conditioned area where the thermostat piece is placed, which is at the beginning of the pipe near the outlet, not where the pipe has a freezing problem at the end of the run. I wish the therm had an adjustable location so it could be slid to the area closest to the freezing point of the pipe. Probably good for other applications. Note the ad says works on PVC pipe. There is a caution there in that water must be in those PVC pipes at all times. December 14, 2013
Rated 5.0 out of 5.0 by Worked better than expected I have 30 feet of exposed PVC pipe in Georgia, last night the pipe froze. I was able to disconnect the pipe from the water main, got the main flowing again. I wrapped the pipe following the directions at 7am and by 3pm the PVC pipe was completely free of ice. I reconnected the PVC pipe to the main and everything flowed perfectly. I think the diameter of the pipe was 3" and it was frozen solid. Also, the HomeDepot website was super helpful. I found the item online at 2am, was at the store by 6am, had product installed by 7am I can only imagine had I installed in preemptively I would have had no problems at all. Highly recommend this item. buy lots of electrical tape to ensure a snug connection to the pipe. January 9, 2015
Rated 3.0 out of 5.0 by Good if restrictions can be accomodated This product is simple and easy to install and use. However, it has a few caviats. The packaging doesn't indicate the watts per foot. You have to calculate that from the total wattage on the UL lable divided by the length of the heating cable. The thermotatic disk must be placed firmly in contact with the pipe being protected from freezing. Also, something you don't find out until you open the package and read the insert, you cannot spiral wrap the pipe with this heating cable. It is meant to be applied in a straight line down the length of the pipe. If your application meets these restrictions, the simplicity of installation and use make this a great way to keep your pipes from freezing. February 10, 2011
Rated 4.0 out of 5.0 by Works! Had a problem with the heat pipes freezing. Bought it... Installed it... Problem solved! March 10, 2015
>>