A portable propane heater burns gas across a ceramic or catalytic plate that glows and beams heat at whatever is in front of it. Small ones run on one or two 1 lb cylinders; cabinet heaters hold a 20 lb tank inside. Most carry a low-oxygen sensor that shuts them off before the air gets thin, and a tip-over switch, which is why makers approve many of them for tents, cabins and ice shacks with a window or vent open. Check the “Use” line on each heater: not every heater in this group is approved for indoor use.
Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Full ranking 14
- Mr. Heater Portable Buddy MH9BX#1 of 14Full review
The default choice for heating a ventilated tent, blind or small cabin on 1 lb cylinders, with the option to hook up a bigger tank later. Keep the 9 sq in of fresh air the maker requires.
Amazon $89.97$89.979,000 BTU4,000 BTUYesCSA - ROVSUN RS-HCG18K 18,000 BTU#2 of 14Full review
A low cost 18,000 BTU cabinet heater for well ventilated garages, sheds and patios, with tip, low oxygen and flame out shutoffs. The maker requires good ventilation indoors.
Amazon $117.99$117.9918,000 BTU6,000 BTUYesSGS - Gasland MHA18B 18,000 BTU#3 of 14Full review
For ventilated garages, offices and workshops that need a rolling 18,000 BTU heater with a full set of shutoffs. The manual rules out homes and living quarters.
Amazon $152.99$152.9918,000 BTU6,000 BTUYesCSA - Dyna-Glo HeatAround 360 HA2360R#4 of 14Full review
For heating the middle of a ventilated tent, blind or shelter from all sides. Keep the 18 sq in of fresh air the manual requires.
Amazon $129.99$129.9918,000 BTU13,500 BTUYesCSA - ThermoMate PHF18B 18,000 BTU#5 of 14Full review
For ventilated garages, workshops and job sites where a rolling 18,000 BTU cabinet heater beats a tank top. The manual rules out homes, RVs and living quarters.
Amazon $169.99$169.9918,000 BTU6,000 BTUYesCSA - Mr. Heater Big Buddy MH18B#6 of 14Full review
For heating a ventilated cabin, ice shack or large tent that a 9,000 BTU Buddy can’t keep warm. Give it the 18 sq in of fresh air at floor and ceiling the maker requires.
Mr. Heater $240.26$240.2618,000 BTU4,000 BTUYesNo - Mr. Heater Hunting Buddy MH12HB#7 of 14Full review
For hunters who want quiet push button lighting in a ventilated blind or tent and up to 12,000 BTU. Follow the maker’s ventilation rules.
Amazon $126.48$126.4812,000 BTU6,000 BTUYesCSA - Camplux CHV18B 18,000 BTU#8 of 14Full review
For patios and open garages where a rolling 18,000 BTU cabinet heater is handy. Camplux files it under outdoor use only, so treat it that way.
Amazon $146.82$146.8218,000 BTU6,000 BTUYesNo - Mr. Heater Buddy FLEX MH11BFLEX#9 of 14Full review
A compact, push button alternative to the Portable Buddy for ventilated tents and cabins, with a slightly higher low setting. Keep the fresh air the maker’s manual requires.
Amazon $129$12911,000 BTU8,000 BTUYesNo - WELLUCK ZRA18M 18,000 BTU#10 of 14Full review
For buyers short on storage space who want an 18,000 BTU heater for outdoor or well ventilated indoor spaces. The seller limits indoor use to well ventilated areas.
Amazon $158.95$158.9518,000 BTU6,000 BTUYesNo - Mr. Heater Little Buddy MH4B#11 of 14Full review
For heating a small tent, blind or ice shanty with ventilation, where a light one cylinder heater is all that fits. Follow the maker’s vent rule of at least 4 sq in of fresh air.
Amazon $69.99$69.993,800 BTU3,800 BTUYesCSA - Avenger 22BF-A00 18,000 BTU#12 of 14Full review
A plain 18,000 BTU cabinet heater for patios and open work areas. It is sold as an outdoor heater, so use it that way.
Amazon $138.82$138.8218,000 BTU6,000 BTUYesNo - Heatstar HS35LP 35,000 BTU#13 of 14Full review
For contractors heating buildings under construction or large ventilated work bays. The maker rules out homes and RVs.
Amazon $180.48$180.4835,000 BTU35,000 BTU-No - Mr. Heater Golf Cart Heater MH4GC#14 of 14Full review
For golfers and spectators who want a little radiant warmth in an open cart. The maker restricts it to outdoor use.
Amazon $62.99$62.994,000 BTU4,000 BTUYesNo