


VENTS - DUCT AIR HEATER WITH CONTROLLER - � 100 - 600W (NK100UN)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
VENTS - DUCT AIR HEATER WITH CONTROLLER - � 100 - 600W (NK100UN)Duct electrical heaters for supply air heating in round duct ventilation system, with temperature controller, power demand from 0. 6 up to 2. 4 kW: temperature control knob with temperature range from 10C up to +40C on junction box front panel. Equipped with built in temperature sensor integrated inside of heater's duct. Thermal switch with manual reset actuated at +60C for the thermal overheating protection. Power demand from 3. 0 up to 9. 0 kW:
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Your VENTS - DUCT AIR HEATER WITH CONTROLLER - � 100 - 600W (NK100UN) orders ship within 1-2 business days.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.2 ★★★★★
Based on 962 reviews
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Product Reviews
★★★★★ 5
Awesome tool
Very easy to use, only issue I had was the location pin was a bit tight. Chucked it in the drill and polished it up with a scotch-brite and it worked perfectly. The end to end symmetry made it easy to move from one side to the other. Good price as well!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2024
★★★★★ 4
Excellent 11 hole jig
Size: 11 Holes
This jig worked excellently. It doesn't have any instructions, so I watched the video of it. I set it up the way the video showed, and I got decent results. Deducted a star since no instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Perfect hole placement
Size: 11 Holes
Worked exactly as described.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2025
★★★★★ 5
Good jig
Size: 11 Holes
The jig itself is great. The markings make it easy to be consistent; the design is well thought-out; and the build quality is good. I would recommend replacing the drill bit, though. A nice brad point will serve you better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
★★★★★ 5
Great
Size: 11 Holes
Worked better than expected
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
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