Affiliate disclosure: some links are affiliate links — as an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Full disclosure.
A patio heater that sits unused for several months, exposed to winter weather, is one of the more common sources of "won’t light" complaints come spring — and most of those problems trace back to storage, not a defective heater. Here’s the proper off-season routine.
Top 3 Recommended
Disconnect the Tank Before Storage
The single most important step is disconnecting the propane tank or cylinder before long-term storage, rather than leaving it attached over winter. This isn’t just about fire safety — a tank left connected outdoors through temperature swings puts unnecessary stress on the hose and regulator connections, and it’s simply not necessary if the heater isn’t being used. Store the disconnected tank separately, upright, in a well-ventilated outdoor location away from any structure, following standard propane tank storage guidance.
Clean the Burner and Reflector Before Storing
Debris, pollen and general outdoor grime accumulate on a heater’s burner and reflector over a season of use, and leaving that buildup in place over winter gives it months to bake on or attract moisture-related corrosion. A basic wipe-down of the reflector dome and a visual check of the burner ports for debris before storage makes spring startup meaningfully easier, and it’s a five-minute task compared to troubleshooting a clogged burner months later.
Cover It or Bring It Inside
A dedicated patio heater cover is the minimum protection if the heater stays outside over winter — it’s a low-cost accessory that meaningfully extends the life of the burner and reflector by keeping moisture and debris off the unit during months of non-use. If you have the storage space, moving the heater to a garage, shed or covered area is even better, since a cover reduces but doesn’t eliminate exposure to humidity and temperature swings the way full indoor storage does.
Check for Pests Before First Light in Spring
Spiders and insects nesting in an unused burner tube over a season of storage is a well-documented cause of ignition problems across gas appliances generally, not something specific to any one heater brand. Before lighting the heater for the first time in spring, a visual check of the burner ports and any hose openings for nests or debris catches this specific problem before it turns into a frustrating "why won’t this light" troubleshooting session.
Inspect the Hose and Regulator for Cracking
Rubber and vinyl hoses degrade with age and UV exposure even if the heater has barely been used, and a full winter of temperature swings accelerates that wear. Before reconnecting a tank in spring, inspect the hose along its full length for cracking, brittleness or visible wear, and check the regulator connection for corrosion. A hose that looks fine at a glance can still have degraded enough over winter storage to warrant replacement — when in doubt, replacing an aging hose is inexpensive insurance against a leak.
Standing Heaters: Consider Partial Disassembly
For a standing heater stored outdoors over winter, some owners remove the reflector dome and burner head for separate, protected storage rather than leaving the fully assembled unit exposed under just a cover. This is more effort than a simple cover-and-leave approach, but it further reduces exposure for the components most sensitive to moisture and UV, particularly for anyone in a climate with a long, harsh winter season.
Stainless Steel vs. Painted Steel: Storage Matters More for One
If your heater is painted or powder-coated steel rather than stainless, winter storage quality matters even more, since painted steel is the material most prone to developing rust at seams and screw points when left exposed to moisture over an extended period. A stainless steel heater tolerates imperfect storage better, though proper storage still extends its working life regardless of material.
Storing the Propane Tank Itself
The tank you disconnect deserves its own storage attention, separate from the heater. Store it upright, in a well-ventilated outdoor location away from any structure or direct heat source — never indoors, in a garage attached to living space, or in a vehicle, which is standard propane storage guidance regardless of what appliance the tank feeds. Check the tank’s certification date stamped on the collar before storing it for winter; tanks generally need recertification or replacement every 12 years in the US, and a tank due to expire is worth addressing before spring rather than discovering it at the exchange counter when you need a refill.
Climate-Specific Storage Considerations
In regions with genuinely harsh winters — heavy snow load, extended sub-freezing stretches — a heater left outdoors under just a cover faces more stress than in a milder climate, and moving it to fully enclosed storage is worth the extra effort if you have the space. In milder climates where winter mostly means occasional rain rather than snow and ice, a quality cover left in place is usually sufficient protection. Match your storage effort to your actual climate rather than following a one-size-fits-all routine that might be more or less than your situation actually requires.
How Storage Quality Affects Resale Value
A patio heater that’s been properly stored each off-season — tank disconnected, covered or moved indoors, hose and burner checked — holds its condition and resale value noticeably better than one left exposed year-round. If you might sell or pass along the heater eventually, treating winter storage as routine maintenance rather than an optional afterthought pays off beyond just your own use of the heater.
Storing a Tabletop Heater Differently From a Standing One
A compact tabletop heater is far easier to store fully indoors than a full-size standing unit, simply due to size, and there’s little reason not to bring one inside for the off-season rather than leaving it under a cover outdoors. A standing heater’s size makes full indoor storage less practical for most households, which is exactly why a quality cover and careful component-level care matter more for that format specifically, and why the disassembly step some owners take is worth the extra effort for a standing heater that will otherwise sit outdoors for months.
What to Check When You Bring It Back Out
Before the first light of the new season: reconnect a tank you’ve confirmed isn’t empty or expired, inspect the hose and regulator one more time under better lighting than a quick winter check might have allowed, and do a visual check of the burner and reflector for anything that accumulated during storage. This short checklist catches the vast majority of "it worked fine last fall, why won’t it light now" scenarios before they become a bigger troubleshooting task.
Related Reading
For diagnosing an actual ignition or performance problem after storage, see our sitewide troubleshooting and repair guide. For choosing tank versus cylinder storage more broadly, see our tanks, hoses and accessories guide.