Best Duck Blind Heaters for Cold Mornings

How to choose a blind heater

A blind heater is a radiant propane unit you set on the floor of an enclosed hide and run for a few hours at first light. Almost every heater sold into this category comes from one family, Mr. Heater's Buddy line, and the honest reason is that the Buddy heaters are the ones with an oxygen depletion sensor, a tip-over cut-out and an indoor-safe rating printed on the box. Five of the six picks here are Buddys, and the sixth is a catalytic RV heater that permanent-blind owners have been mounting to a wall for years. If you hunt an open layout blind or a boat with the cover down, none of them are the answer — skip to how to stay warm duck hunting instead, because radiant heat in moving air does very little.

Match published coverage to the box you are actually heating, then round down. The square-foot figures makers publish are for an enclosed, insulated space: 95 square feet for the Little Buddy, 130 for the Camco Wave-3, 225 for the Portable Buddy, 275 for the Buddy FLEX, 300 for the Hunting Buddy and 450 for the Big Buddy. A pit blind or a blind house with a roof and a door is a fair comparison to those numbers. A brush-sided A-frame with an open front is not, and the working rule is to buy more coverage than the floor plan suggests, because the walls of most duck blinds leak.

Run time per cylinder decides how much propane you carry, and only three of these publish it. The Portable Buddy publishes 3 hours at maximum and 6 at minimum, the Little Buddy publishes 5.6 hours, and the Buddy FLEX publishes 2 hours at maximum and 3.5 at minimum, all on a 1-pound disposable cylinder. Mr. Heater publishes no run time for the Hunting Buddy or the Big Buddy, which is a real gap on the two heaters most likely to run all morning. If the sit is longer than the cylinder, the answer is a hose to a 20-pound bulk tank — the Big Buddy lists that connection, and the rest accept it with an optional hose and filter.

Ignition noise is the one waterfowl-specific spec, and it separates exactly one heater. The Hunting Buddy uses a silent electronic ignition; the Portable Buddy, Big Buddy and Little Buddy use a piezo, which is the click you hear when it lights. It is one click, not a running noise, so this matters less than the marketing suggests — but if you hunt a pressured timber hole where birds are working before shooting light, relighting a piezo under circling ducks is the moment you notice. The Camco Wave-3 takes silence further: catalytic heat with no fan and no flame at all.

Weight is the spec people regret ignoring. These run from 5.85 pounds (Little Buddy) to 17.1 pounds (Big Buddy) before you add a cylinder, and a 1-pound cylinder adds roughly another pound each. If the blind is a hundred yards from the truck it does not matter. If you are already carrying a bag of decoys and a gun, the Little Buddy or the Portable Buddy is the realistic choice, and the Big Buddy is for blinds you can drive to or boats you load once. For what else rides in the bag, see the blind bag checklist.

Carbon monoxide and ventilation

Every heater on this page burns fuel, and burning fuel in an enclosed space produces carbon monoxide. The CDC describes it plainly: carbon monoxide is “an odorless, colorless gas that kills without warning”, with symptoms the agency lists as headache, dizziness, weakness, upset stomach, vomiting, chest pain and confusion — and it notes that people can lose consciousness before they notice any of them. In a duck blind, half those symptoms read like a cold, early morning.

That is what the oxygen depletion sensor on every Buddy heater is for: it shuts the heater down when the oxygen level in the space falls. It is a backstop, not a ventilation plan. Run these with a window, a door or a section of the blind roof open, follow the manual that ships in the box, and treat a sealed pit blind with a heater running as something that needs deliberate airflow rather than a closed lid. Camco is explicit that the Wave-3 is for vented areas only. Nothing here should be left running while you sleep in a blind, and none of these are rated for use inside a tent that has been fully zipped.

How we scored these

Every heater here is scored on the same five published metrics this site uses for field accessories: function and features (30%), build and materials (25%), weather resistance and cold-weather design (20%), size and portability (10%) and warranty (15%). The full weighting is published on how we score. Function is scored on what the maker says the heater does for a hunter — output, coverage, published run time, adjustability and, on the Hunting Buddy, the silent ignition. Portability is scored on published weight. Warranty is scored on the published term, which is 1 year across the Mr. Heater line and 12 months from Camco, so it separates almost nothing here. These are evaluations of published specifications and manuals, not of heaters we ran in a blind.

Who should skip all of these

Layout blind hunters lying in a stubble field: there is no safe place for an open-flame heater inside a coffin blind, and the heat goes straight up through the doors. Layer instead, and see best layout blinds for models with insulated pads. Anyone hunting from an open boat: radiant heat and wind do not mix, and a heater loose in a boat is a hazard rather than a comfort. Hunters on public water who move every hour: the weight is not worth it. And anyone whose real problem is cold hands and feet rather than a cold blind — that is a clothing problem, and how to stay warm duck hunting fixes it more cheaply than propane does.

Buy on three numbers and one habit. The numbers are published coverage against the size of your hide, published run time against the length of your sit, and weight against how far you carry it. The habit is ventilation: whichever of these you buy, it runs with air moving through the blind, and the oxygen sensor is the backup rather than the plan. For most duck hunters in an enclosed blind or a pit, the Hunting Buddy is the right size and the only one built for hunting; for a walk-in hide, the Little Buddy is the one that actually gets carried; for a pit or a blind house, the Big Buddy on a 20-pound bottle is the setup that holds heat all morning. Every buy button here goes to a tagged Amazon search for that model rather than one fixed listing, because Mr. Heater now sells Midnight and PRO variants of the same heaters side by side — check the model number and the fan on the listing you land on before you order. For the blinds these go inside, start with types of duck blinds and pit blinds explained, and for the rest of the cold-weather kit, see late-season duck hunting gear.