Patio Heater in Stainless Steel - Residential Heaters Residential Heaters Collection. Our patio heaters are expertly crafted from premium materials Made of Stainless Steel, Stainless Steel finish 41,000 BTU's Variable Control Adjustable table. The stylish finish perfectly accents and enhances your patio decor All AZ Patio Heaters products include a one year warranty against manufacturer defects. We are one of the only suppliers in the US to maintain a complete line of replacements parts and a full service repair center