Williams Furnace Company Replacement Models

Williams Furnace Company has been manufacturing heating products for over 100 years. While their products are engineered to last, you may reach a point where the heater should be replaced. If you have an older Williams heater, you can use the chart below to identify the most current replacement model. Not all models listed are direct replacements as heater technology has evolved over the years. Be sure to verify the measurements, fuel type, and specifications to make sure that the new model meets your needs. 

Old Model NumberReplacement Model Number
1403611 1403821
1403612 1403822
2001611 2001621A
2001612 2001622A
2001612.3 2001622A
2203611 2203821
2203612 2203822
2506912 2509822
2509611 2509821
3003611 3003821
3003621 3003821
3003612 3003822
3003622 3003822
3501511 3501521A
3501512 3501522A
3501512.3 3501522A
3501911 3501921A
3501912 3501922A
3502511.4 3502521A
3502512.4 3502522A
3502911.4 3502921A
3502912.4 3502922A
3509611 3509821
3509612 3509822
5001511 5001521A
5001512 5001522A
5001911 5001921A
5001912 5001922A
5002511.4 5002521A
5002512.3 5002522A
5002512.4 5002522A
5002911.4 5002921A
5002912.4 5002922A
5009611 5009821
5009612 5009822
6502511.4 6502521A
6202512.3 6502522A
6502512.4 6502522A
6502911.4 6502921A
6502912.3 6502922A
6502912.4 6502922A
Old Model NumberReplacement Model Number - NGReplacement Model Number - LP
100 DEBONAIR 1403822 1403821
100C-1 DEBONAIR 1403822 1403821
140C DEBONAIR 1403822 1403821
140C-3 DEBONAIR 1403822 1403821
140C-5 DEBONAIR 1403822 1403821
140D 1403822 1403821
14DV 1403822 1403821
14DV-3 1403822 1403821
14DV-3 B 1403822 1403821
14DV-5 1403822 1403821
14DV-5 B 1403822 1403821
200C DEBONAIR 2203822 2203821
220B DEBONAIR 2203822 2203821
220C-3 DEBONAIR 2203822 2203821
220C-5 DEBONAIR 2203822 2203821
220D 2203822 2203821
220D DEBONAIR 2203822 2203821
22DV 2203822 2203821
22DV-3 2203822 2203821
22DV-3 B 2203822 2203821
22DV-5 2203822 2203821
25GV 2509822 2509821
25GV-3 2509822 2509821
25GV-5 2509822 2509821
300B DEBONAIR 3003822 3003821
300C DEBONAIR 3003822 3003821
300C-3 DEBONAIR 3003822 3003821
300C-5 DEBONAIR 3003822 3003821
300D 3003822 3003821
300D DEBONAIR 3003822 3003821
30DV 3003822 3003821
30DV-3 3003822 3003821
30DV-3 B 3003822 3003821
30DV-5 3003822 3003821
30DV-5 B 3003822 3003821
350SCF 3508632 3508631
35ECH 3501522A 3501521A
35EH 3501522A 3501521A
35ECHA 3501922A 3501921A
35EHB 3501922A 3501921A
35GV 3509822 3509821
35GV-5 3509822 3509821
35GV-HA 3509822 3509821
35RCH 3502522A 3502521A
35RH 3502522A 3502521A
35RCHB 3502922A 3502921A
35RHB 3502922A 3502921A
35V-3 3509822 3509821
400DVF 4007732 4007731
400DVX 4007732 4007731
400DVI 4007332 4007331
435F 3508632 3508631
435FA 3508632 3508631
435FEI 3508232 3508231
435FX 3508632 3508631
450FX 5008632 5008631
450SFA 5008632 5008631
500SCF 5008632 5008631
455FEI 5508232 5508231
465FA 6508632 6508631
465FX 6508632 6508631
500SCF 5008632 5008631
50ECH 5001522A 5001521A
50EH 5001522A 5001521A
50ECHA 5001922A 5001921A
50EHB 5001922A 5001921A
50GV 5009822 5009821
50GV-3 5009822 5009821
50GV-5 5009822 5009821
50GV-HA 5009822 5009821
50RCH 5002522A 5002521A
50RH 5002522A 5002521A
50RCHB 5002922A 5002921A
50RHB 5002922A 5002921A
550DVI 5507332 5507331
550DVX 6007732 6007731
650DVF 6007732 6007731
650DVX 6007732 6007731
650SCF 6007732 6007731
65ECH 6501522A 6501521A
65EH 6501522A 6501521A
65ECHA 6501922A 6501921A
65EHB 6501922A 6501921A
65RCH 6502522A 6502521A
65RH 6502522A 6502521A
65RCHB 6502922A 6502921A
65RHB 6502922A 6502921A
B28SD 2509822 2509821
B35SD 3509822 3509821
B50D 5009822 5009821
B60D 5009822 5009821
C28SD 2509822 2509821
C35SD 3509822 3509821
C50D 5009822 5009821
C60D 5009822 5009821
D114-ST 1403822 1403821
D122-ST 2203822 2203821
D130-ST 3003822 3003821
DSC14B 1403822 1403821
DSC22B 2203822 2203821
DSC30B 3003822 3003821
HA35 3509822 3509821
HA50 5009822 5009821
HA60 5009822 5009821
NDV-14 1403822 1403821
NDV-22 2203822 2203821
NDV-30 3003822 3003821

Williams Comfort Products has manufactured furnaces under the following brand names:

  • Dayton
  • Grainger
  • Debonair
  • Dearborn
  • Kenmore
  • Sears
  • Sahara
  • Suburban
  • Westwood