The 7-piece Highland Oak refractory cement log set comes in 3 sizes to best fit your space. Its compatible Natural Blaze burner produces dancing yellow flames for an authentic fire-viewing experience.
| Size: | 18 | 
| Front Width Minimum Firebox Opening: | IPI: 28-1/2"; MIL: 26" | 
| Height Minimum Firebox Opening: | IPI: 17"; MIL: 17" | 
| Depth Minimum Firebox Opening: | IPI: 13"; MIL: 13" | 
| Back Width Minimum Firebox Opening: | IPI: 20-1/4"; MIL: 18" | 
| Fuel Type: | Natural Gas or Liquid Propane | 
| BTU/hr Input: | 28,000 NG / 27,000 LP | 
| Heating Capacity: | Up to 1,400 sq ft | 
| Ignition System: | Millivolt or IPI | 
| Size: | 24 | 
| Front Width Minimum Firebox Opening: | IPI: 31"; MIL: 29" | 
| Height Minimum Firebox Opening: | IPI: 17"; MIL: 17" | 
| Depth Minimum Firebox Opening: | IPI: 13"; MIL: 13" | 
| Back Width Minimum Firebox Opening: | IPI: 25-1/4"; MIL: 22-1/4" | 
| Fuel Type: | Natural Gas or Liquid Propane | 
| BTU/hr Input: | 37,000 NG / 36,000 LP | 
| Heating Capacity: | Up to 1,850 sq ft | 
| Ignition System: | Millivolt or IPI | 
| Size: | 30 | 
| Front Width Minimum Firebox Opening: | IPI: 35"; MIL: 33" | 
| Height Minimum Firebox Opening: | IPI: 17"; MIL: 17" | 
| Depth Minimum Firebox Opening: | IPI: 13"; MIL: 13" | 
| Back Width Minimum Firebox Opening: | IPI: 25-1/4"; MIL: 25-1/4" | 
| Fuel Type: | Natural Gas or Liquid Propane | 
| BTU/hr Input: | 37,000 NG / 36,000 LP | 
| Heating Capacity: | Up to 1,850 sq ft | 
| Ignition System: | Millivolt or IPI |