Rheem Like New - Performance Platinum 9.5 GPM Liquid Propane Super High Efficiency Indoor Smart Tankless Water Heater The Rheem 9.5 GPM Performance Platinum Super High Efficiency Indoor Liquid Propane Smart Tankless Water Heater delivers more hot water than most tank water heaters. The 199,900 BTU Super High... $764.99 Was: $1,274.90 Was: Add to Cart