Heatilator Side Refractory (11821A)

Replacement side refractory for the Heatilator wood and gas stoves and fireplaces. This part measures 20" x 15-1/2". Fits the following models:

Note: This is just one side. Most units require 2. Please check your manual for amount needed as well as checking your date code on your manufacturers tag.

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:

• CL36C - Pre 8/91
• CL36D - Pre 8/91
• CR36D - Pre 8/91
• HB36A - Pre 26/91
• HB36AI - Pre 26/91
• HB36AM - Pre 26/91
• HB42A - Pre 26/91
• HB42AI - Pre 26/91
• HD36A 
• HD36AI
• HD36B - Pre 26/91
• HD36BI - Pre 26/91
• HD42A - Pre 26/91
• HD42AI - Pre 26/91
• HD42B - Pre 26/91
• HD42BI - Pre 26/91
• NA36A - Pre 26/91
• NA36AI - Pre 26/91
• NA42 - Pre 26/91
• NA42A - Pre 26/91
• NA42AI - Pre 26/91
• RB36AI - Pre 26/91
• RB42AI - Pre 26/91

Heatilator Gas Fireplaces:

• G420
• G420L
• G420E
• G420LE
• GC420
• GC420L
• GC420E
• GC420LE

Heatilator part # 11821A
OEM HHT part

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