Stone Gas Fire Pit Heater. Introducing the 46cm Square Gas Fire Pit – an elegant and traditional solution to outdoor heating. Combining a stylish magnesium oxide stone effect frame with a lava rock fuel bed, this statement fire pit brings timeless, garden-warming beauty throughout the summer months and beyond. Simple to set up and easy to operate with an integrated electronic ignition (battery included), you can enjoy years of warmth and convivial outdoor socialising. The fire pit is fuelled by propane gas, with a 5kg canister cleverly hidden away inside the base. With a heat output of 40,000 BTU and intuitive flame control, you can enjoy constant, relaxed outdoor warmth with no mess. And with a FREE waterproof cover included, this stylish fire pit will remain looking as good as new for season after season. So why wait, start enjoying your outdoor space with warmth and good company with the 46cm Square Gas Fire Pit. Stylish Design with Hidden Gas Canister Storage. Hard-wearing Magnesium Oxide Pillar with Lava Rocks. Integrated Ignition with Adjustable Flame Control. FREE Waterproof Cover, Gas Regulator & Hose. Fire Pit Material: Magnesium Oxide. Rock material: Lava Rock. Gas Bottle Capacity: 5.