Commercial Water Heater Manuals & Owner Guides — page 2

750 models · 28 brands · Data updated October 7, 2026

All commercial water heaters A–Z

Commercial Water Heaters
ModelBrandDescriptionCertified
GTP 130 2Polaris A. O. Smith 50-gallon commercial gas storage water heater November 2021
GTP 150 2Polaris A. O. Smith 50-gallon commercial gas storage water heater November 2021
GTP 175 2Polaris A. O. Smith 50-gallon commercial gas storage water heater November 2021
GTP 199 2Polaris A. O. Smith 50-gallon commercial gas storage water heater November 2021
PWH0400NPXP Plus A. O. Smith 399,000 Btu/h commercial gas tankless water heater September 2024
PWH0500NPXP Plus A. O. Smith 500,000 Btu/h commercial gas tankless water heater September 2024
PWH0650NPXP Plus A. O. Smith 650,000 Btu/h commercial gas tankless water heater September 2024
PWH0800NPXP Plus A. O. Smith 800,000 Btu/h commercial gas tankless water heater September 2024
PWH1000NPXP Plus A. O. Smith 999,000 Btu/h commercial gas tankless water heater September 2024
PWH1250(N,L)(P)(-CAN)XP Plus A. O. Smith 1,250,000 Btu/h commercial gas tankless water heater February 2024
PWH1500(N,L)(P)(-CAN)XP Plus A. O. Smith 1,500,000 Btu/h commercial gas tankless water heater February 2024
PWH2000(N,L)(P)(-CAN)XP Plus A. O. Smith 1,999,000 Btu/h commercial gas tankless water heater February 2024
PWH3000(N,L)(P)(-CAN)XP Plus A. O. Smith 3,000,000 Btu/h commercial gas tankless water heater February 2024
PWH4000(N,L)(P)(-CAN)XP Plus A. O. Smith 4,000,000 Btu/h commercial gas tankless water heater February 2024
XWH-201LXP A. O. Smith 201,000 Btu/h commercial gas tankless water heater August 2022
XWH-201NXP A. O. Smith 201,000 Btu/h commercial gas tankless water heater August 2022
XWH-285NXP A. O. Smith 285,000 Btu/h commercial gas tankless water heater August 2022
AHCG3-100T150-3* 3BTH 150* 3** American 100-gallon commercial gas storage water heater November 2021
AHCG3-100T150-3* 4BTH-150* 4** American 100-gallon commercial gas storage water heater August 2025
AHCG3-100T199-3* 3BTH 199* 3** American 100-gallon commercial gas storage water heater November 2021
AHCG3-100T199-3* 4BTH-199* 4** American 100-gallon commercial gas storage water heater August 2025
AHCG3-100T250-3* 3BTH 250* 3** American 100-gallon commercial gas storage water heater November 2021
AHCG3-100T250-3* 4BTH-250* 4** American 100-gallon commercial gas storage water heater August 2025
AHCG3-119T251-4* 4BTH-251* 4** American 119-gallon commercial gas storage water heater August 2025
AHCG3-119T300-3* 3BTH 300* 3** American 119-gallon commercial gas storage water heater November 2021
AHCG3-119T300-4* 4BTH-300* 4** American 119-gallon commercial gas storage water heater August 2025
AHCG3-119T400-3* 3BTH 400* 3** American 119-gallon commercial gas storage water heater November 2021
AHCG3-119T400-4* 4BTH-400* 4** American 119-gallon commercial gas storage water heater August 2025
AHCG3-119T500-3* 3BTH 500* 3** American 119-gallon commercial storage-type instantaneous gas water heater November 2021
AHCG3-119T500-4* 4BTH-500* 4** American 119-gallon commercial storage-type instantaneous gas water heater August 2025
AHCG3-60T100-3* 4BTH-100* 4** American 60-gallon commercial gas storage water heater August 2025
AHCG3-60T120-3* 3BTH 120* 3** American 60-gallon commercial gas storage water heater November 2021
AHCG3-60T120-3* 4BTH-120* 4** American 60-gallon commercial gas storage water heater August 2025
AHCG3-60T145-3* 4BTH-145* 4** American 60-gallon commercial gas storage water heater August 2025
CMHP2CO-6EMERGE-xc American commercial heat pump water heater February 2026
CMHP3CO-6EMERGE-xc American commercial heat pump water heater February 2026
HCG3-100T150-3* 3BTH 150* 3** American 100-gallon commercial gas storage water heater November 2021
HCG3-100T150-3* 4BTH-150* 4** American 100-gallon commercial gas storage water heater August 2025
HCG3-100T199-3* 3BTH 199* 3** American 100-gallon commercial gas storage water heater November 2021
HCG3-100T199-3* 4BTH-199* 4** American 100-gallon commercial gas storage water heater August 2025
HCG3-100T250-3* 3BTH 250* 3** American 100-gallon commercial gas storage water heater November 2021
HCG3-100T250-3* 4BTH-250* 4** American 100-gallon commercial gas storage water heater August 2025
HCG3-119T251-4* 4BTH-251* 4** American 119-gallon commercial gas storage water heater August 2025
HCG3-119T300-3* 3BTH 300* 3** American 119-gallon commercial gas storage water heater November 2021
HCG3-119T300-4* 4BTH-300* 4** American 119-gallon commercial gas storage water heater August 2025
HCG3-119T400-3* 3BTH 400* 3** American 119-gallon commercial gas storage water heater November 2021
HCG3-119T400-4* 4BTH-400* 4** American 119-gallon commercial gas storage water heater August 2025
HCG3-119T500-3* 3BTH 500* 3** American 119-gallon commercial storage-type instantaneous gas water heater November 2021