Model Designations

Items shown in gray background are discontinued.

TYPE BOILER DESCRIPTION AVAILABLE ON PRODUCT LINES AVAILABLE SIZES
B Instantaneous Booster Water Heaters DISCONTINUED 2006 Booster Heaters B-50, B-130, B-0195
       
H Hydronic Heating Boilers (Z21.13, H stamped)
H Residential Raytherm 0042-0180
H-NF Residential, Non Ferrous Waterways Raytherm 0042-0180
H1 Mechanical Modulation, 150-210F Raytherm 133-1826
H2 Motorized Modulation Raytherm 514-4001
H3 Two Stage Raytherm 181-4001
Hi Delta HD101-HD401
122-322 DISCONTINUED
2010
302-902
H4 On-Off Raytherm 181-4001
Hi Delta 302-402
ADB DISCONTINUED 2009 500-1501
MVB 504-2004
H5 Mechanical Modulation, 110-170F Raytherm 182-400, 514-1826
H6 Motorized Modulating Hydronic Boiler W/B6000 DISCONTINUED 2009 Raytherm 514-4001
H7 Low NOx Stage-FireDISCONTINUED 2000 Raytherm 2100-4001
H7 Electronic Modulation, 25-100% MVB 503-2003
XTherm 1005-2005
Electronic Modulation, 70-100% MVB 504-2004
Electronic Modulation, 20-100% XFyre 300-850
H8 Low NOx On-Off FireDISCONTINUED 2000 Raytherm 2100-4001
H8 Three Stage Hi Delta 992
H9 Four Stage Raytherm 514-4001
Hi Delta 1262-2342
       
N Instantaneous Water Heating Boiler (Z21.13, H stamped) with 110-170F Mechanical Modulation DISCONTINUED 2009 Raytherm 514-1826
NH Instantaneous Water Heater (Z21.10.3, HLW stamped) with 110-170F Mechanical Modulation DISCONTINUED 2009 Raytherm 514-1826
       
P Commercial Pool Heaters (Z21.56, HLW stamped) Raytherm 514-4001
Hi Delta 302-1802
MVB 504-1504
P8 Pool Heater, Low Nox DISCONTINUED 2000 Raytherm 2100-4001
       
R Dual Temperature Water Heating Boiler with 150-210F Mechanical Modulation (Z21.13, H stamped) DISCONTINUED 2009 Raytherm 514-1125
RH Dual Temperature Water Heater (Z21.10.3, HLW stamped) with 150-210F Mechanical Modulation DISCONTINUED 2009 Raytherm 514-1125
       
W Domestic Supply Water Heating Boilers (Z21.13, H stamped)
W1 On/Off Raytherm 133-4001
ADB DISCONTINUED 2009 500-1501
Hi Delta HD101-HD401
122-322DISCONTINUED
2010
302-2342
W2 Mechanical Modulation Raytherm 133-1826
Motorized Modulation 2100-4001
W3 Two Stage Raytherm 182-4001
Hi Delta 122-322DISCONTINUED 2009
302-902
W7 Low NOx Stage-FireDISCONTINUED 2000 Raytherm 2100-4001
W7 Electronic Modulation, 20-100% XFyre 300-850
W8 Low NOx On-OffDISCONTINUED 2000 Raytherm 2100-4001
W8 Three Stage Hi Delta 992
W9 Four Stage Raytherm 514-4001
Hi Delta 1262-2342
       
WH Domestic Supply Water Heaters (Z21.10.3, HLW stamped)    
WH1 On/Off Raytherm 133-4001
ADB DISCONTINUED 2009 500-1501
Hi Delta HD101-HD401
122-322DISCONTINUED 2010
302-2342
MVB 504-2004
WH2 Mechanical Modulation Raytherm 133-1826
Motorized Modulation 2100-4001
WH3 Two Stage Raytherm 181-4001
Hi Delta 122-322DISCONTINUED 2010
HD101-HD401
302-902
WH7 Electronic Modulation MVB 503-2003
  Xtherm 1005-2005
WH7 for XFyre product line are Z21.10.3, but are still H-stamped boilers. XFyre 300-850
WH8 Three Stage Hi Delta 992
WH9 Four Stage Raytherm 514-4001
Hi Delta 1262-2342
       
WHP Z21.10.3 water heater in pool service.Used where outlet temp would exceed Z21.56 limits. Raytherm 1287-4001
Hi Delta 2072-2342
MVB 2004
XTherm 1005-2005
       
WH Econopak Multipurpose Heaters Raytherm 0090-0401
       
       
       
Old Raytherm model suffixes (Used prior to Nov 1988.All superseded by current system)
TYPE BOILER DESCRIPTION AVAILABLE SIZES
-T standard heating boiler, modulating 120-240F 489-4000
-TP packaged center heating and indirect hot water supply boiler.Same as -T boiler with additionof pump, non-Code Air-X Tank, T&P gauge, water pressure regulator and relay, factory mtd and wired. under 1060
-WHT hot water supply boiler.AGA approved instantaneous water heater.Not ASME certified. up to 361
-WT same as -WHT, with ASME heat exchanger.Approved as hot water boiler. 489-4000
-T-HWS hot water supply boiler. 90-210F modulation and 125# PRV. all
-TIP Instant-Pak. Tankless instantaneous direct-fired hot water supply boiler packaged with bronze pump and controls.T&P gauge std on sizes 489+. all
-TIPR Restaurant-Pak. Adds 13 gallon accumulator.Provides 140F/180F hot water supply.Completely factory packaged with bronze pump, flow switch, thermometer, T&P relief valve and controls.Mixing valve furnished loose for field installation. all
-WHG swimming pool heater. up to 361
-WG swimming pool boiler. all