Published specifications
Only the figures the listings state. Where a maker does not publish a weather rating or a wattage, the table says so — and on a porch, a missing IP rating is worth noticing.
| | Output | Mounting | Weather rating | Controls |
|---|
| Dr. Infrared DR-239 | 3,000 W | Wall or ceiling | IP55 | Not published |
| hykolity wall mount | 1,500 W | Wall | IP55 | Remote, 24-hour timer |
| Econat 1500 W | 1,500 W | Wall or ceiling | Not published | Adjustable thermostat |
| Dr. Infrared DR-238 | Not published | Portable, floor | Not published | Not published |
| Hiland tabletop pyramid | 10,000 BTU | Tabletop | Not published | Not published |
Note the circuit difference, because it decides the shortlist. The 1,500 watt units run on an ordinary 120 volt outlet. The 3,000 watt DR-239 does not — check what the listing and manual specify for supply and have an electrician confirm your porch circuit before you buy it. Twice the wattage is roughly twice the felt heat, and it is only available to you if the supply is there.
Three porches, three answers
A roofed porch with a solid ceiling you can drill. Mount the DR-239 if your circuit supports it, the hykolity if it does not. Both publish IP55, both go above head height, and a mounted heater aimed down and slightly outward warms the seating without warming the ceiling. Mount height and angle matter more than wattage: too high and the radiant heat spreads too thin, too low and it is uncomfortable.
A rented porch, or a surface you will not drill.The portable Dr. Infrared DR-238 is the honest answer. It sits on the floor, plugs into a normal outlet, and the listing covers indoor and outdoor use — which is the useful part, because it moves to a garage or workshop out of season. It publishes no wattage, so expect it to be the modest option, and it does occupy floor space.
A porch where you want a visible flame.The Hiland tabletop pyramid is the only gas unit on this page, and it is here precisely because it is small: 10,000 BTU from a 1-pound cylinder, on a table, with a glass flame tube. That is a fraction of a full patio heater’s output and therefore a fraction of its clearance problem. Still read its manual for clearance, still ventilate, and still fit a CO alarm if any side of the porch is enclosed.
Where a screened porch changes the rules
Screens on three or four sides stop being “outdoors” in the sense a gas appliance’s manual means. The ventilation it assumes is not there, and a propane burner consumes oxygen and produces carbon monoxide. The CPSC’s standing advice is battery-operated CO alarms, or alarms with battery backup, on every level of a home and outside sleeping areas.
In a fully screened porch, electric is not merely the better option, it is the one that removes the question — no combustion, no exhaust, no cylinder stored anywhere. Our electric porch heaters page covers the field in more depth, and is a propane heater safe indoors sets out which propane units are rated for enclosed spaces and which are never safe in one.
Windy porches, specifically
Three practical points, because this is a distinct problem rather than a variation of the first one.
- Radiant beats convective in wind, every time. Infrared heats the objects and people it strikes. A gas heater warms a column of air that a gust removes. If your porch is exposed on the windward side, this is the whole decision.
- A gust puts out a pilot; it cannot put out an element. Relighting a gas heater three times an evening is the common complaint in exposed spots, and some units will not stay lit in sustained wind at all.
- Nothing tall and top-heavy in the wind.A seven-foot propane heater with a 20-pound cylinder in its base is stable until it is not, and a tipped heater is a serious event. If you want a freestanding gas heater, the ones with a water-fillable base are meaningfully steadier — our propane patio heaters page covers which publish that feature.
Winter running costs, honestly
Electric radiant heat is not cheap to run. A 1,500 watt unit draws 1.5 kilowatt-hours per hour; a 3,000 watt unit draws twice that. Multiply by your own rate and by the hours you will actually use it, because that is the figure that matters rather than any headline. What electric gives you in return is zero setup cost per session, no cylinder swaps in January, and a thermostat or timer so it is not running while nobody is sitting there — the hykolity publishes a remote and a 24-hour timer, the Econat an adjustable thermostat, and both features pay for themselves in a long winter.
Propane is usually cheaper per hour of heat and more expensive in everything else: the cylinder, the swaps, the storage, the output drop on the coldest nights, and the clearance it needs. For a covered porch used most evenings through winter, mounted electric wins on total cost of ownership rather than on the per-hour number. If your situation is the reverse — an open patio, used occasionally, where the biggest possible output matters — then propane vs electric patio heaters runs that comparison properly, and best small patio heaters covers the compact end of both fuels.
