![Did you know? LPG gas isn't lighter than air, LPG propane is actually 50 percent denser fuel, heavier than atmosph… | Social media banner, Safety tips, Social media Did you know? LPG gas isn't lighter than air, LPG propane is actually 50 percent denser fuel, heavier than atmosph… | Social media banner, Safety tips, Social media](https://i.pinimg.com/736x/b0/b4/6b/b0b46bfda993bfb1fd4bb3c900555fab.jpg)
Did you know? LPG gas isn't lighter than air, LPG propane is actually 50 percent denser fuel, heavier than atmosph… | Social media banner, Safety tips, Social media
![Filling up the hot air balloon envelope with hot air from propane flames in Portland, USA - License, download or print for £12.40 | Photos | Picfair Filling up the hot air balloon envelope with hot air from propane flames in Portland, USA - License, download or print for £12.40 | Photos | Picfair](https://res.cloudinary.com/fleetnation/image/private/c_fit,w_1120/fl_no_overflow,g_south,l_text:style_gothic2:%C2%A9%20Leon%20Hugo,o_20,y_10/fl_no_overflow,g_center,l_watermark4,o_25,y_50/v1588694005/ndytgvofrjj2c1bpsaml.jpg)
Filling up the hot air balloon envelope with hot air from propane flames in Portland, USA - License, download or print for £12.40 | Photos | Picfair
![Retro hot air balloons sketches. Vintage lighter than air aircraft, balloon with inflated hot propane gas or helium envelope bag and wicker basket or Stock Vector Image & Art - Alamy Retro hot air balloons sketches. Vintage lighter than air aircraft, balloon with inflated hot propane gas or helium envelope bag and wicker basket or Stock Vector Image & Art - Alamy](https://l450v.alamy.com/450v/2emg6y5/retro-hot-air-balloons-sketches-vintage-lighter-than-air-aircraft-balloon-with-inflated-hot-propane-gas-or-helium-envelope-bag-and-wicker-basket-or-2emg6y5.jpg)