Bernzomatic TS4000 Trigger Start Torch 361524
- Trigger start, lock button for finger-free use
- Swirl flame from a replaceable brass tip
- Propane or MAPP fuel
- Cast aluminum body, stainless steel burn tube
- 1 year limited warranty, made in the USA
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A trigger-start torch head with a swirl flame and a lock button for long jobs. It runs on propane or MAPP, and the heat output is not given in the listing.
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ASIN: B00008ZA09Model: TS4000Category: Propane Torches
Overview
A pressure-regulated burner is fed through the trigger on this Bernzomatic head, so pulling lights the flame and releasing shuts it off. The tip swirls the flame for concentrated heat and burns in any direction.
One-pull ignition, a hold button and a replaceable brass tip suit soldering and general heating jobs. The copy gives the head weight but no heat rating, and the brand line shows IRWIN in the maker text.
Who it's for
Plumbers, hobbyists and workshop users who light and shut off a torch often will use the trigger and lock. Buyers wanting a listed BTU output should check the maker.
Pros and cons
- Trigger starts and stops the flame
- Lock button for finger-free use
- Replaceable brass tip
- Burns in any direction
- Heat output not listed
- Fuel canister sold separately
- Hold button wastes fuel if forgotten
- Maker text names two brands
Performance notes
Pressure regulation holds the flame steady even when the torch points down or sideways. The swirl flame concentrates heat on the work, and the brass tip stays cooler than the flame. Fuel type decides the peak temperature.
Where it stands among propane torches
- #2 most-searched brand and model of the 9 propane torches lines we track (by search demand, not sales).
From the specs of the 15 propane torches we list; not a test result.
Specifications
| Brand | Bernzomatic |
|---|---|
| Model | TS4000 |
| Dimensions & fit | |
| Weight | 1.3 pounds |
| Power & efficiency | |
| Fuel | Propane or MAPP |
| Construction & materials | |
| Tip | Replaceable brass |
| Body | Cast aluminum, stainless steel burn tube |
| Warranty & support | |
| Warranty | 1 year limited |
| Other details | |
| Ignition | Trigger start with lock button |
| Flame | Swirl |
| Made in | United States |
Frequently asked questions
How heavy is the Bernzomatic TS4000 torch head?
The copy gives the head weight as 1.3 pounds.
What fuel does the Bernzomatic TS4000 use?
Propane or MAPP gas, per the copy.
Does the TS4000 light with a trigger?
Yes. Pulling the trigger ignites it and releasing the trigger turns it off. A lock button holds the flame.
Can the TS4000 burn pointing down?
The copy says pressure regulation lets the flame burn in any direction.