Replacement hearth refractory for Heatilator and Heat N Glo wood fireplaces. This part measures front width is 31.27", back width is 19.85", depth is 13.85" and .75" thick. Fits the following models:

NOTE: To prevent cracking due to thermal shock, we recommend seasoning the refractory by building relatively small fires for the first few burns, and then gradually working up to larger fires.

Heatilator Wood Fireplaces:

• HB36A (post 25/92)
• HB36AI (post 25/92)
• HB36AM (post 7/91)
• HD36B (post 25/92)
• HD36BI (post 25/92)
• MH36A
• NA36
• NA36A (post 25/92)
• NA36AI (post 25/92)
• E36
• EC36

Heat N Glo Wood Fireplaces:

• RHW-41
• RSW-41

Heatilator part # 17174B
OEM HHT part 

May fit other models, please check your owner’s manual for part number compatibility.