SKU: 76442
UPC: 089301000629
The Mr. Heater 540 Tank Top Heater is a radiant propane tank heater built to mount directly on a 20 lb cylinder and throw heat where you need it. It runs 30,000 to 45,000 BTU per hour through a high-medium-low regulator, which makes it a practical choice for campsites, porches, tailgating, hunting blinds, and ice fishing shacks. The 360-degree adjustable burner head and bracket that swivels up to 180 degrees let you aim the heat instead of warming empty air. For anyone working or sitting in an unheated outdoor space, this is one of the simpler heating options in our Mr. Heater lineup.
This is a propane top heater that draws fuel through a soft-nose connection and lights with a push-button thermo-electric valve, so there's no separate igniter to fuss with. It mounts on 20 to 100 lb propane cylinders, and a tip-over safety shut-off switch kills the gas flow if the unit gets knocked down. The burner head adjusts a full 360 degrees while the multi-directional bracket swivels up to 180 degrees, giving you control over direction and angle. Stainless steel components hold up to repeated outdoor use. On a single 20 lb tank, runtime stretches from about 9.5 hours at the maximum 45,000 BTU setting to roughly 14 hours at the lowest output, per manufacturer specifications. The unit measures 11 inches long by 11 inches wide by 16 inches high.
Reach for this heater when you're set up outdoors and want steady radiant warmth without hauling a generator or running an extension cord. Hunters use it to take the edge off a cold morning in a blind, ice anglers run it inside a shanty, and tailgaters point it at the group before kickoff. Keep in mind it's rated for outdoor use only and carries safety certification for that purpose. If you want a more enclosed or portable option, compare it against the Hunting Buddy, or stock up on disposable hand warmers for the gear that travels lighter.
It mounts directly to a 20 lb propane cylinder and is rated to work on tanks from 20 to 100 lb. On a standard 20 lb tank, expect roughly 9.5 hours of runtime at the maximum 45,000 BTU setting and up to 14 hours on the lowest setting.
No. The Mr. Heater 540 is rated for outdoor use only. It's built for campsites, porches, tailgating, hunting blinds, and ice fishing shanties where there is adequate ventilation. Do not run it inside an enclosed home or tightly sealed space.
It uses a push-button thermo-electric valve, so lighting is straightforward without a separate igniter or matches. The unit also includes a tip-over safety shut-off switch that cuts the gas flow if the heater is knocked over.
It produces 30,000 to 45,000 BTU per hour, adjustable through a high-medium-low regulator. The 360-degree burner head and bracket that swivels up to 180 degrees let you direct the radiant heat where you want it rather than warming the surrounding air evenly.
Per manufacturer specifications, a 20 lb propane tank delivers about 9.5 hours at the maximum 45,000 BTU output and stretches to roughly 14 hours at the lowest setting. Larger cylinders extend that runtime accordingly.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.