By Jenny Mills · rural nurse & homesteader · health, safety, law and the paperwork of going bush
“After losing two litres of boiled water to a drafty kitchen on a -2°C night, I learned that 1mm of gap is the difference between warmth and hypothermia.”
— Jenny. Paperwork first, then the fun part.
ArticlesCalculatorsSite PlannerShopStop wasting fuel on gaps that let heat out and cold in. This isn't about comfort—it's about survival. Fix your doors or your off-grid dream dies faster than a dingo in a snowstorm.
Stop wasting fuel on gaps that let heat out and cold in. This isn't about comfort—it's about survival. Fix your doors or your off-grid dream dies faster than a dingo in a snowstorm.
Forget the fancy stuff. These three are your only options:
Don't waste money on magnetic strips or felt. They fail in Aussie humidity and wind.
Step 1: Clean the door frame with methylated spirits. Grease kills adhesion.
Step 2: Measure gaps. If it's wider than 5mm, you need a door sweep. If it's 2-5mm, use V-seal.
Step 3: Cut strips to size. Overlap ends by 5mm—don't stretch them. Stretching = gaps later.
Step 4: Press firmly for 30 seconds. No "maybe" adhesion. If it peels in a week, you didn't clean properly.
Step 5: Test with a candle. Hold it against the door. If the flame flickers, you've got a gap. Fix it.
Off-grid means every watt counts. A 3mm gap in your door = 20% more wood or solar power used. That's $100+ extra in fuel costs per month. Stop pretending it's "not that bad".
Seal the door, then seal the window frames. Then check the roof vents. But start with the door. It's the biggest leak.
Bunnings Warehouse: V-seal strips ($5.95), rubber door sweeps ($12.95). Get the "DuraFlex" brand—lasts longer than generic. Stock up in summer when they're on sale.
Mitre 10: Foam tape ($3.45), door sweeps ($10.50). Same as Bunnings. No difference.
Off-Grid Australia (online): Premium V-seal ($15 for 5m). Only for remote sites where you can't get to a store. Not worth it for most.
Price note: Don't pay $30 for "special" strips. They're the same as Bunnings. Australian suppliers don't rip you off on this.
Fix your door. It's $15 max. If you don't, you're burning money. If you're off-grid, you can't afford to be wasteful. Do it now. Then check your windows. Then your roof. But start with the door.
While many off-grid projects are achievable as DIY, certain situations require licensed professionals:
Always check local regulations and obtain necessary permits before commencing work.
Worth a watch: Offgrid Workshop Project Pt. 7 - Insulating the Workshop · Traplines and Inlines
