Click on the FAQ Type below to see FAQs of that type Then click on the Questions below to see answers
	FAQ Type: [ General ] [ HVAC Definitions ] [ Misc ] Frequently Asked Questions: General Where can I find a dealer for new HVAC Equipment or replacement parts of existing units? Can I purchase units or replacement parts on line? Can I get some advice on installing or repairing my Reznor HVAC Equipment? I have an old Reznor Heater from the 1940's, 1950's, 1960's, 1970's, 1980's, or 1990's in my home / business. Are replacement units or parts available? I am an Engineer/Architect. How can I get technical specifications for your HVAC Equipment? How can I get a wiring diagram for specific piece of equipment? Is there a kit available that will change my Reznor Heater from natural gas to propane fueled (or propane to natural gas)? I need an installation / operation / maintenance / parts /or other type of manual for my hvac equipment. Where can I find this information? What size heater do I need for a space/room that measures (x ft. wide by y ft. deep) I am an hvac/mechanical engineer instructor at my institution (or, I am a student working on a project). Do you have any instructional information on heating and heating equipment. I have an old Reznor Heater. How can I determine exactly how old it is? Is there a comparison tool for Direct Fired versus LDAP units? What is the New York City Approval ( MEA ) Number for Reznor Models? When Engineers specify “CFM”, do they mean ACFM or SCFM? Frequently Asked Questions: HVAC Definitions What is the difference between ACFM and SCFM? Frequently Asked Questions: Misc Is Trent Reznor, the lead singer for the band Nine Inch Nails, associated with Reznor HVAC Equipment? Are those Reznor Unit Heaters hanging in the background of Michael Douglas' loft apartment in the movie, "It Runs in the Family"? I have an old Reznor Heater from the 1940's, 1950's, 1960's, 1970's, 1980's, or 1990's in my home / business. Are replacement units or parts available? Reznor has been making heating equipment since 1888. Many of the heaters from the 1940's and 1950's are still working. Some replacement parts are available on certain units. See our list of discontinued Model Numbers (manufactured from the 1940s through 2006) and replacements where available below:   MODEL TYPE LAST MFD. (YEAR) PARTS AVAILABLE CURRENT MODEL ABB Air Turnover Unit 1999 Limited AEB ACB Air Turnover Unit 2006 Limited AEB AEUH Elec. Unit Heater 2000 Limited EGEA AFA Room Heater 1945 None None AHCA Split System 2006 Limited PDH, RDH ARB Air Turnover Unit 1998 Limited AEB BE Unit Heater 2001 Yes UDBP CEEXL Unit Heater 1988 Yes UDAP CEEXLB Unit Heater 1988 Yes UDBP CPAK Pkgd. Heating/MUA 1997 Yes PGBL, SSCDBL CREB Pkgd. Heating/MUA 1990 Yes RDH or RPB CRG Rooftop Duct Furnace 2007 Yes RP CRGB Rooftop Pkgd. Heating/MUA 2007 Yes RDH or RPB CRGBL Rooftop Pkgd. Heating/MUA 2007 Yes RPBL CRP Duct Furnace 1996 Yes RP CRPAK Pkgd. Heating/MUA 1990 Yes RPBL, RPDBL CRPBE Pkgd. Heating/MUA 1990 Yes RPB CRPV Duct Furnace 1996 Yes RPV CRPVAK Pkgd. Heating/MUA 1990 Yes RPBL, RPDBL CRPVE Pkgd. Heating/MUA 1990 Yes RPB*, RDH CRXE Pkgd. Heating/MUA 1990 Yes RPB*, RDH CX Duct Furnace 1996 Yes X CXE Pkgd. Heating/MUA 1996 Yes XE CXL Unit Heater 1988 Yes F CXLB Unit Heater 1988 Yes B D Duct Furnace 1956 None X, EEDU DBF Residential Furnace 1956 None None DFA Direct Fired Heater 1999 Limited DFC DFAH Hi-Bay Unit 1975 Limited None DFB Direct Fired Heater 2006 Limited DFC DFT Duct Furnace 1977 See Note None DPAK Pkgd. Heating/MUA 1997 Yes PGBL DS-LDS Duct Furnace 1964 None X, EEDU DU Duct Furnace 1952 None X, EEDU EDF Elec. Duct Furnace 2007 None None EDFF Elec. Duct Furnace 2004 None None EDI Elec. Duct Furnace 2007 None None EDIF Elec. Duct Furnace 2004 None None EE Elec Furnace 1980 Limited None EEXL Unit Heater 1988 Yes UDAP EEXLB Unit Heater 1988 Yes UDBP ECV Elec. Convection Htr. 2004 None None EGE Elec. Unit Heater 2004 Limited EGEA EGH Elec. Unit Heater 2004 Limited EGEA EJ Elec M.U.A. 1980 Limited None EPH Elec. Control Panel Htr 2004 None None EPWP Elec. Pool Water Htr 2004 None None EPWD Elec. Dishwasher Water Htr. 2004 None None EPWH Elec. Process Water Htr. 2004 None None ER Horizontal Hydronic Unit Heater 1993 Limited WS ERBC Elec Furnace/ Evap CLG 1980 Limited None ERBJ Elec M.U.A. 1980 Limited None ERC Elec W/Evap CLG 1980 Limited None ERC Elec. Radiant Htr. 2004 None ERSF/ERSP ERE Elec Furnace 1980 Limited None ERE Elec. Radiant Htr. 2004 None ERSF/ERSP ERHC Elec. Radiant Htr. 2004 None ERSF/ERSP ERHQT Elec. Radiant Htr. 2004 None ERSF/ERSP ERHR Elec. Radiant Htr. 2004 None ERSF/ERSP ERIC Elec. Radiant Htr. 2004 None ERSF/ERSP ERIH Elec. Radiant Htr. 2004 None ERSF/ERSP ERIE Elec. Radiant Htr. 2004 None ERSF/ERSP ERIQF Elec. Radiant Htr. 2004 None ERSF/ERSP ERIQL Elec. Radiant Htr. 2004 None ERSF/ERSP ERIQT Elec. Radiant Htr. 2004 None ERSF/ERSP ERIR Elec. Radiant Htr. 2004 None ERSF/ERSP ERJ Elec M.U.A. 1980 Limited None ERQL Elec. Radiant Htr. 2004 None ERSF/ERSP ERQT Elec. Radiant Htr. 2004 None ERSF/ERSP ERSA Energy Recovery 2003 Yes XAWS, XAWU, XBWS, XBWU EUH Elec. Unit Heater 2000 Limited EGEA EVSB Electric Boiler 2004 None None EVWB Electric Boiler 2004 None None EXCA Elec. Convection Htr. 2004 None None EXCB Elec. Convection Htr. 2004 None None EXU Elec. Explosion Resis. Htr 2004 None EXUA FE Unit Heater 2001 Yes UDAP FM Room Heater 1962 None None FT Unit Heater 2001 Yes UDAP HC Hydronic Cabinet Heater 1999 Yes None HCREB Pkgd. Heating/MUA 1990 Yes RDH, RPB HCRG Rooftop Duct Furnace 2006 Yes RP HCRGB Rooftop Pkgd. Heating/MUA 2006 Yes RDH, RPB HCRGBL Rooftop Pkgd. Heating/MUA 2006 Yes RPBL HCRP Duct Furnace 1996 Yes HRP HCRPBE Pkgd. Heating/MUA 1990 Yes RDH, HRPB HCRPV Duct Furnace 1996 Yes HRPV HCRPVE Pkgd. Heating/MUA 1990 Yes RDH, HRPB* HCRXE Pkgd. Heating/MUA 1990 Yes RDH, HRPB* HCX Duct Furnace 1996 Yes HX HCXE Pkgd. Heating/MUA 1996 Yes HXE HH Hydronic Unit Heater 1999 Yes WS HR Heat Recovery 1981 Yes None HRA Heat Recovery 1981 Yes None HRB Heat Recovery 1981 Yes None HREB Pkgd. Heating/MUA 1990 Yes RDH, HRPB HRG Rooftop Duct Furnace 2006 Yes RP HRGB Rooftop Pkgd. Heating/MUA 2006 Yes RDH, RPB HRGBL Rooftop Pkgd. Heating/MUA 2006 Yes RPBL HRPBE Pkgd. Heating/MUA 1990 Yes RDH, HRPB HRPVE Pkgd. Heating/MUA 1990 Yes RDH, HRPB* HRXE Pkgd. Heating/MUA 1990 Yes RDH, HRPB* HV Hydronic Unit Heater 1999 Yes WS IR Infared 1964 None RIHN,RIHL,RIHVN,RIHVL IR-IP Infared 1959 None RIHN,RIHL,RIHVN,RIHVL LUSB Unit Heater 1964 Limited UDBP LUSF Unit Heater 1964 Limited UDAP OB Oil Fired (Blower Type) Htr. 2006 Limited None OUB250-300 Oil Fired 1988 Limited None OUB95, 140, 185 Oil Fired 1992 Limited None OUD Oil Duct Furnace 1978 Limited None OUE Oil, F.A.F 1978 Limited None OUH250-300 Oil Fired 1988 Limited None OUH95, 140, 185 Oil Fired 1992 Limited OH PAA Pkgd. Heating/MUA 1999 Limited CAUA, PCDH, PCDV PAB Pkgd. Heating/MUA 1998 Limited PCDH, PCDV PAC Pkgd. Heating/MUA 1998 Limited PCDH, PCDV PAK Pkgd. Heating/MUA 1997 Yes PGBL, SSCDBL PBB Pkgd. Heating/MUA 1998 Limited PCDH, PCDV PBC Pkgd. Heating/MUA 1999 Limited PCDH, PCDV PCBH Pkgd. Heating/MUA 2006 Limited PCDH PCBV Pkgd. Heating/MUA 2006 Limited PCDV PCCA Pkgd. Cooling & Heating 2003 Limited RCA, RDCA, RECA PCCH Pkgd. Cooling & Heating 2000 Limited RCA, RDCA, RECA PCCR Pkgd. Cooling & Heating 2000 Limited RCA, RDCA, RECA PCDA Pkgd. Cooling & Heating 2003 Limited RDA, RDDA, REDA PV Sep Comb Duct Furnace 1973 Yes SC PVA Sep Comb Unit Heater 1973 Yes UDAS PVB Sep Comb Unit Heater 1973 Yes UDBS PVC Sep Comb Unit Heater 1973 Yes SDH PVD Sep Comb Hi-Bay Unit 1973 Yes None PVE Sep Comb F.A.F. 1973 Yes SDH RAM Evaporative Cooling 1990 Limited REC