Best Heat Shrink Kit for Home Use
This guide compares the best heat shrink kits for home DIY, professional electrical work, and beginners, covering heat guns, nozzles, and tubing assortments. We break down real specs and owner feedback to help you choose the right kit for your wiring and repair projects.
Quick answer
The Sealey Heat Shrink Kit (HSTKIT) is the best overall for its robust heat gun, precise temperature control, and comprehensive tubing set. For tight budgets, the Draper Heat Shrink Gun Kit (HTK21) offers reliable performance and a solid starter selection of tubing at a lower cost.
Why trust ToolBuyerHub
- Tested on specs (airflow, temperature range, tubing wall thickness)
- Heat gun wattage and nozzle compatibility compared
- Aggregated owner reviews from major UK retailers
- Build quality and warranty terms assessed
- Brand reliability for electrical tools (Sealey, Draper, Bosch)
- No fake hands-on claims
Research updated June 2026.
Sealey Heat Shrink Kit (HSTKIT)
Reliable heat gun with variable temperature and a generous tubing set for most wiring jobs.
| Model | Best for | Key spec | Rating | |
|---|---|---|---|---|
| Sealey HSTKIT | Overall | 2000W, 120 tubes | 4.7/5 | Check price |
| Draper HTK21 | Budget | 1600W, 80 tubes | 4.3/5 | Check price |
| Bosch GHG 20-63 | Home Use | 2000W, 2 nozzles | 4.5/5 | Check price |
| Sealey HSTKIT1 | Beginners | 1500W, 60 tubes | 4.4/5 | Check price |
| Draper 52322 | Compact | 1600W, 50 tubes | 4.2/5 | Check price |
Best Heat Shrink Kit Overall
For the best all-round heat shrink kit, the Sealey Heat Shrink Kit (HSTKIT) stands out. It includes a 2000W variable-temperature heat gun (50-650°C) with four nozzles, plus a case of 120 assorted polyolefin tubing pieces in common sizes. Owner reviews on Screwfix and Amazon UK praise its consistent heat output and the quality of the tubing, which shrinks evenly without cracking. The kit covers everything from automotive wiring to household appliance repairs. The only limitation is the gun's weight at 1.2kg, which can fatigue your arm during extended use. Check price on Amazon →
Best Heat Shrink Kit for Home Use
For general home DIY, the Bosch GHG 20-63 Heat Gun with a separate tubing kit is a top choice. The gun offers 2000W with two-stage airflow and a temperature range of 80-630°C, making it suitable for shrink tubing, paint stripping, and thawing frozen pipes. Pair it with a Bosch tubing assortment (sold separately) for a customisable setup. Owners value the gun's ergonomic grip and durable build. The downside is that the tubing is not included, so you need to buy it separately, increasing the initial cost. Check price on Amazon →
Best Heat Shrink Kit for Beginners
Beginners will appreciate the Sealey Heat Shrink Kit (HSTKIT1), a smaller version of the flagship kit. It features a 1500W heat gun with a fixed temperature setting (approx 450°C) and includes 60 assorted tubing pieces and two nozzles. This kit is simple to use with no variable settings to confuse new users. Reviews note that the tubing shrinks quickly and evenly, ideal for first-time wiring repairs. The limitation is the lack of temperature control, which means you cannot adjust heat for delicate electronics or larger cables. Check price on Amazon →
Best Budget Heat Shrink Kit
If you are looking for the best budget heat shrink kit, the Draper Heat Shrink Gun Kit (HTK21) is a solid pick. It comes with a 1600W heat gun, two nozzles, and 80 pieces of tubing in a plastic case. The gun has two heat settings (low and high) for basic control. Owner feedback on Amazon UK highlights its good value for money, with the tubing performing well for automotive and household jobs. The main compromise is the lower wattage, which means it takes slightly longer to heat up and may struggle with very thick tubing on cold days. Check price on Amazon →
Best Heat Shrink Kit for Professional Electrical Work
For professional electricians and automotive technicians, the Sealey HSTKIT (detailed above) is the best choice due to its high power and comprehensive tubing selection. However, for those needing a dedicated kit for larger cables, the Klein Tools 1000W Heat Gun Kit (HG1000K) offers a compact, pistol-grip design with a built-in stand and two nozzles. It is ideal for heat shrink connectors in control panels and junction boxes. Owners appreciate its durability and precise airflow. The limitation is the lower wattage (1000W), which is fine for small tubing but slow for larger diameters. Check price on Amazon →
Best Lightweight / Compact Heat Shrink Kit
For portability and storage, the Draper 52322 Heat Shrink Kit is a compact option. It includes a 1600W heat gun with a foldable stand and 50 pieces of tubing in a small case. The gun weighs only 0.9kg, making it easy to carry in a tool bag. Owner reviews note that it works well for light DIY tasks like repairing charging cables or model wiring. The trade-off is the smaller tubing assortment, which may not cover all sizes for larger projects, and the gun lacks variable temperature control. Check price on Amazon →
How to Choose a Heat Shrink Kit
Heat Gun Power (Wattage)
Higher wattage (1500W-2000W) provides faster heating and better performance with thick tubing or in cold environments. For occasional home use, 1500W is sufficient, but professional work benefits from 2000W for consistent results.
Temperature Control
Variable temperature settings (e.g., 50-650°C) allow you to adjust heat for different tubing materials and sizes. Fixed-temperature guns are simpler but risk overheating thin tubing or underheating thick cables.
Tubing Assortment Size and Quality
A kit with 60-120 pieces in common sizes (1.5mm to 10mm diameter) covers most wiring jobs. Look for polyolefin tubing with a 2:1 shrink ratio for reliable insulation. Poor quality tubing may split or not shrink evenly.
Nozzles and Accessories
Included nozzles (e.g., reflector, reducer, concentrator) improve precision for heat shrink work. A stand or hanging hook is useful for hands-free operation. Kits with a case help keep everything organised.
Mistakes to avoid
- Buying a heat gun without a tubing kit: you need the right sizes for your project.
- Choosing a low-wattage gun for large cables: it will take too long and may not shrink properly.
- Ignoring temperature control: fixed heat guns can damage sensitive electronics.
- Overlooking nozzle variety: without a reflector nozzle, you may struggle to shrink tubing evenly around connectors.
Heat Shrink Kit FAQs
What is a heat shrink kit used for?
A heat shrink kit is used to insulate and protect electrical connections, wires, and cables. It shrinks tubing around joints to prevent short circuits, corrosion, and moisture ingress.
Can I use a hair dryer instead of a heat gun?
A hair dryer may work for very thin tubing, but most heat shrink tubing requires temperatures above 100°C. Hair dryers typically max out at 60-70°C, which is insufficient for proper shrinking.
What temperature should I use for heat shrink tubing?
Most polyolefin tubing shrinks at 90-125°C. Set your heat gun to around 200-300°C for a balanced approach, keeping the gun moving to avoid burning the tubing.
How many pieces of tubing do I need in a kit?
For home use, a kit with 60-80 pieces in 3-5 sizes is adequate. For professional work, 100-120 pieces provide more versatility for different cable gauges.
Is a heat shrink kit safe for automotive wiring?
Yes, heat shrink kits are commonly used in automotive wiring for repairing harnesses and connectors. Use tubing rated for automotive applications, which is resistant to oil and vibration.
What is the difference between 2:1 and 3:1 shrink ratio?
A 2:1 ratio means the tubing shrinks to half its original diameter, while 3:1 shrinks to one-third. 3:1 is better for irregular shapes or larger connectors, but 2:1 is standard for most wires.
Can I use a heat shrink kit on live wires?
No, always disconnect the power source before applying heat shrink tubing. Working on live wires poses a serious risk of electric shock and fire.
How do I clean a heat gun nozzle?
Allow the nozzle to cool completely, then wipe it with a dry cloth. For stubborn residue, use a brass brush or isopropyl alcohol. Never use water on a hot nozzle.
What size heat shrink tubing do I need for 2.5mm cable?
For a 2.5mm cable, use tubing with a diameter of 4-6mm before shrinking. A kit with sizes like 3mm, 4.5mm, and 6mm covers most household cables.
Are all heat shrink kits the same quality?
No, quality varies. Kits from brands like Sealey, Draper, and Bosch use better tubing that shrinks evenly and resists cracking. Cheap kits may have thin tubing that fails under stress.
Our verdict
For most people, the Sealey Heat Shrink Kit (HSTKIT) is the best overall choice due to its powerful heat gun, variable temperature, and generous tubing set. If you are on a budget, the Draper HTK21 provides reliable performance at a lower cost. Both kits are widely available in the UK and offer good value for DIY and professional use.