5-GPM Gas Tankless Water Heaters

Gas tankless water heaters rated at about 5 gallons per minute under the DOE test's 77 °F temperature rise. At a milder rise the same units deliver more flow — roughly 7 GPM at 55 °F.

202 certified models in this category.

Model Uniform Energy Factor (UEF)FuelFirst-hour ratingMax flow rateRated storage volumeSmart / connected capable
A. O. Smith ATHR-160M 1 0.95Natural Gas, Propane—4.8 GPM—No
A. O. Smith ATHR-160M 1 (ATHR-160X3 1) 0.95Natural Gas, Propane—4.8 GPM—No
A. O. Smith ATHR-160M 1 (GT15THR-160M 1) 0.95Natural Gas, Propane—4.8 GPM—No
A. O. Smith ATHR-160M 1 (GT15THR-160X3 1) 0.95Natural Gas, Propane—4.8 GPM—No
A. O. Smith ATHR-180M 1 0.95Natural Gas, Propane—5.3 GPM—No
A. O. Smith ATHR-180M 1 (ATHR-180X3 1) 0.95Natural Gas, Propane—5.3 GPM—No
A. O. Smith ATHR-180M 1 (GT15THR-180M 1) 0.95Natural Gas, Propane—5.3 GPM—No
A. O. Smith ATHR-180M 1 (GT15THR-180X3 1) 0.95Natural Gas, Propane—5.3 GPM—No
A. O. Smith ATM-160M-N 1 0.95Natural Gas—4.8 GPM—No
A. O. Smith ATM-160M-N 1 (ATM-160X3-N 1) 0.95Natural Gas—4.8 GPM—No
A. O. Smith ATM-160M-N 1 (GT15TM-160M-N) 0.95Natural Gas—4.8 GPM—No
A. O. Smith ATM-160M-N 1 (GT15TM-160X3-N) 0.95Natural Gas—4.8 GPM—No
A. O. Smith ATM-160M-P 1-1 0.95Propane—4.8 GPM—No
A. O. Smith ATM-160X3-P 1-1 0.95Propane—4.8 GPM—No
A. O. Smith ATM-180M-N 1 0.95Natural Gas—5.4 GPM—No
A. O. Smith ATM-180M-N 1 (ATM-180X3-N 1) 0.95Natural Gas—5.4 GPM—No
A. O. Smith ATM-180M-N 1 (GT15TM-180M-N) 0.95Natural Gas—5.4 GPM—No
A. O. Smith ATM-180M-N 1 (GT15TM-180X3-N) 0.95Natural Gas—5.4 GPM—No
A. O. Smith ATM-180M-P 1-1 0.95Propane—5.4 GPM—No
A. O. Smith ATM-180X3-P 1-1 0.95Propane—5.4 GPM—No
A. O. Smith GT15TM-160M-N 1 0.95Natural Gas—4.8 GPM—No
A. O. Smith GT15TM-160M-P 1-1 0.95Propane—4.8 GPM—No
A. O. Smith GT15TM-160X3-N 1 0.95Natural Gas—4.8 GPM—No
A. O. Smith GT15TM-160X3-P 1-1 0.95Propane—4.8 GPM—No
A. O. Smith GT15TM-180M-N 1 0.95Natural Gas—5.4 GPM—No
A. O. Smith GT15TM-180M-P 1-1 0.95Propane—5.4 GPM—No
A. O. Smith GT15TM-180X3-N 1 0.95Natural Gas—5.4 GPM—No
A. O. Smith T-H3J-OS-N (ATO-240H 1-1) 0.95Propane—4.7 GPM—No
A. O. Smith T-H3J-OS-N (ATO-240H 1) 0.95Natural Gas—4.7 GPM—No
A. O. Smith T-H3J-OS-N (ATO-240HX3-N 1) 0.95Natural Gas—4.7 GPM—No
A. O. Smith T-H3J-OS-N (ATO-240HX3-P 1-1) 0.95Propane—4.7 GPM—No
A. O. Smith T-H3J-OS-N (GT15-240-NO 1) 0.95Natural Gas—4.7 GPM—No
A. O. Smith T-H3J-OS-N (GT15-240-PO 1-1) 0.95Propane—4.7 GPM—No
A. O. Smith T-H3S-DV-N (ATI-340H 1-1) 0.95Propane—5.4 GPM—No
A. O. Smith T-H3S-DV-N (ATI-340H 1) 0.95Natural Gas—5.4 GPM—No
A. O. Smith T-H3S-DV-N (ATI-340HX3-N 1) 0.95Natural Gas—5.4 GPM—No
A. O. Smith T-H3S-DV-N (ATI-340HX3-P 1-1) 0.95Propane—5.4 GPM—No
A. O. Smith T-H3S-DV-N (GT15-340-NI 1) 0.95Natural Gas—5.4 GPM—No
A. O. Smith T-H3S-DV-N (GT15-340-PI 1-1) 0.95Propane—5.4 GPM—No
American ATHR-160M 1 (MTHR-160M 1) 0.95Natural Gas, Propane—4.8 GPM—No
American ATHR-160M 1 (MTHR-160X3 1) 0.95Natural Gas, Propane—4.8 GPM—No
American ATHR-180M 1 (MTHR-180M 1) 0.95Natural Gas, Propane—5.3 GPM—No
American ATHR-180M 1 (MTHR-180X3 1) 0.95Natural Gas, Propane—5.3 GPM—No
American ATM-160M-N 1 (MTM-160M-N 1) 0.95Natural Gas—4.8 GPM—No
American ATM-160M-N 1 (MTM-160X3-N 1) 0.95Natural Gas—4.8 GPM—No
American ATM-180M-N 1 (MTM-180M-N 1) 0.95Natural Gas—5.4 GPM—No
American ATM-180M-N 1 (MTM-180X3-N 1) 0.95Natural Gas—5.4 GPM—No
American MTM-160M-P 1-1 0.95Propane—4.8 GPM—No
American MTM-160X3-P 1-1 0.95Propane—4.8 GPM—No
American MTM-180M-P 1-1 0.95Propane—5.4 GPM—No
American MTM-180X3-P 1-1 0.95Propane—5.4 GPM—No
American T-H3J-OS-N (GT-240-NEH 1) 0.95Natural Gas—4.7 GPM—No
American T-H3J-OS-N (GT-240-PEH 1-1) 0.95Propane—4.7 GPM—No
American T-H3J-OS-N (GT-240X3-NEH 1) 0.95Natural Gas—4.7 GPM—No
American T-H3J-OS-N (GT-240X3-PEH 1-1) 0.95Propane—4.7 GPM—No
American T-H3S-DV-N (GT-340-NIH 1) 0.95Natural Gas—5.4 GPM—No
American T-H3S-DV-N (GT-340-PIH 1-1) 0.95Propane—5.4 GPM—No
American T-H3S-DV-N (GT-340X3-NIH 1) 0.95Natural Gas—5.4 GPM—No
American T-H3S-DV-N (GT-340X3-PIH 1-1) 0.95Propane—5.4 GPM—No
Bosch Greentherm (T9800 SE 160) 0.95Natural Gas, Propane—4.6 GPM—No
Bosch Greentherm (T9800 SE 199) 0.95Natural Gas, Propane—5.4 GPM—No
Bosch Greentherm (T9800 SEO 160) 0.95Natural Gas, Propane—4.6 GPM—No
Bosch Greentherm (T9800 SEO 199) 0.95Natural Gas, Propane—5.4 GPM—No
Bosch Greentherm (T9900 SE 160) 0.95Natural Gas, Propane—4.6 GPM—No
Bosch Greentherm (T9900 SE 199) 0.95Natural Gas, Propane—5.4 GPM—No
Bradford White RTG-K-160N2 0.95Natural Gas, Propane—4.6 GPM—No
Bradford White RTG-K-160N2 (RTG-K-160N1) 0.95Natural Gas, Propane—4.6 GPM—No
Bradford White RTG-K-199N1 0.95Natural Gas, Propane—5.4 GPM—No
Bradford White RTG-K-199N2 0.95Natural Gas, Propane—5.4 GPM—No
Bradford White RTGL 199N1 0.95Natural Gas, Propane—5.4 GPM—No
Friedrich FDTGH-S10I 0.96Natural Gas, Propane—5.2 GPM—No
Friedrich FDTGH-S84I 0.96Natural Gas, Propane—4.6 GPM—No
Friedrich FDTGH-SR10I 0.96Natural Gas, Propane—5.2 GPM—No
Friedrich FDTGH-SR84I 0.96Natural Gas, Propane—4.6 GPM—No
Kepler JSG48-29PCH/180K 0.96Natural Gas—5.2 GPM—No
Kiturami KTGWH-180CWS1 0.95Natural Gas, Propane—5.2 GPM—No
Lochinvar ATHR-160M 1 (LTHR-160M 1) 0.95Natural Gas, Propane—4.8 GPM—No
Lochinvar ATHR-160M 1 (LTHR-160X3 1) 0.95Natural Gas, Propane—4.8 GPM—No
Lochinvar ATHR-180M 1 (LTHR-180M 1) 0.95Natural Gas, Propane—5.3 GPM—No
Lochinvar ATHR-180M 1 (LTHR-180X3 1) 0.95Natural Gas, Propane—5.3 GPM—No
Lochinvar ATM-160M-N 1 (LTM-160M-N 1) 0.95Natural Gas—4.8 GPM—No
Lochinvar ATM-160M-N 1 (LTM-160X3-N 1) 0.95Natural Gas—4.8 GPM—No
Lochinvar ATM-180M-N 1 (LTM-180M-N 1) 0.95Natural Gas—5.4 GPM—No
Lochinvar ATM-180M-N 1 (LTM-180X3-N 1) 0.95Natural Gas—5.4 GPM—No
Lochinvar LTM-160M-P 1-1 0.95Propane—4.8 GPM—No
Lochinvar LTM-160X3-P 1-1 0.95Propane—4.8 GPM—No
Lochinvar LTM-180M-P 1-1 0.95Propane—5.4 GPM—No
Lochinvar LTM-180X3-P 1-1 0.95Propane—5.4 GPM—No
Lochinvar T-H3J-OS-N (LTO-240H-N 1) 0.95Natural Gas—4.7 GPM—No
Lochinvar T-H3J-OS-N (LTO-240H-P 1-1) 0.95Propane—4.7 GPM—No
Lochinvar T-H3J-OS-N (LTO-240X3-N 1) 0.95Natural Gas—4.7 GPM—No
Lochinvar T-H3J-OS-N (LTO-240X3-P 1-1) 0.95Propane—4.7 GPM—No
Lochinvar T-H3S-DV-N (LTI-340H-N 1) 0.95Natural Gas—5.4 GPM—No
Lochinvar T-H3S-DV-N (LTI-340H-P 1-1) 0.95Propane—5.4 GPM—No
Lochinvar T-H3S-DV-N (LTI-340X3-N 1) 0.95Natural Gas—5.4 GPM—No
Lochinvar T-H3S-DV-N (LTI-340X3-P 1-1) 0.95Propane—5.4 GPM—No
Midea JSG48-29PCH-LP 0.95Propane—5.2 GPM—No
Midea JSG48-29PCH-NG 0.95Natural Gas—5.2 GPM—No
Midea JSG48-29PCHP-LP 0.95Propane—5.2 GPM—No
Midea JSG48-29PCHP-NG 0.95Natural Gas—5.2 GPM—No
Midea MGWH180IXNN 0.95Natural Gas—5.2 GPM—No
Midea MGWH180IXNP 0.95Natural Gas—5.2 GPM—No
Midea MGWH180IXPN 0.95Propane—5.2 GPM—No
Midea MGWH180IXPP 0.95Propane—5.2 GPM—No
Navien NPE-210A2 0.95Natural Gas, Propane—5 GPM—No
Navien NPE-210S2 0.96Natural Gas, Propane—5.3 GPM—No
Noritz EZ71DV (GQ-C2661WX-FF US) 0.98Natural Gas, Propane—4.7 GPM—No
Noritz EZ71DV (GQ-C2661WX-FF-1 US) 0.98Natural Gas, Propane—4.7 GPM—No
Noritz EZ98DV (GQ-C2859WX-FF US) 0.96Natural Gas, Propane—5.3 GPM—No
Noritz EZ98DV (GQ-C2861WX-FF US) 0.98Natural Gas, Propane—5.3 GPM—No
Noritz EZ98DV (GQ-C2861WX-FF-1 US) 0.98Natural Gas, Propane—5.3 GPM—No
Noritz NRCR92DV (GQ-C2660WXQ-FF US) 0.95Natural Gas, Propane—4.9 GPM—No
Noritz NRCR92DV (GQ-C2661WXQ-FF US) 0.98Natural Gas, Propane—4.7 GPM—No
Noritz NRCR92DV (GQ-C2661WXQ-FF-1 US) 0.98Natural Gas, Propane—4.7 GPM—No
RELIANCE WATER HEATERS ATHR-160M 1 (RTHR-160M 1) 0.95Natural Gas, Propane—4.8 GPM—No
RELIANCE WATER HEATERS ATHR-160M 1 (RTHR-160X3 1) 0.95Natural Gas, Propane—4.8 GPM—No
RELIANCE WATER HEATERS ATHR-180M 1 (RTHR-180M 1) 0.95Natural Gas, Propane—5.3 GPM—No
RELIANCE WATER HEATERS ATHR-180M 1 (RTHR-180X3 1) 0.95Natural Gas, Propane—5.3 GPM—No
RELIANCE WATER HEATERS ATM-160M-N 1 (RTM-160M-N 1) 0.95Natural Gas—4.8 GPM—No
RELIANCE WATER HEATERS ATM-160M-N 1 (RTM-160X3-N 1) 0.95Natural Gas—4.8 GPM—No
RELIANCE WATER HEATERS ATM-180M-N 1 (RTM-180M-N 1) 0.95Natural Gas—5.4 GPM—No
RELIANCE WATER HEATERS ATM-180M-N 1 (RTM-180X3-N 1) 0.95Natural Gas—5.4 GPM—No
RELIANCE WATER HEATERS RTM-160M-P 1-1 0.95Propane—4.8 GPM—No
RELIANCE WATER HEATERS RTM-160X3-P 1-1 0.95Propane—4.8 GPM—No
RELIANCE WATER HEATERS RTM-180M-P 1-1 0.95Propane—5.4 GPM—No
RELIANCE WATER HEATERS RTM-180X3-P 1-1 0.95Propane—5.4 GPM—No
RELIANCE WATER HEATERS T-H3J-OS-N (TS-240-GEH 1) 0.95Natural Gas—4.7 GPM—No
RELIANCE WATER HEATERS T-H3J-OS-N (TS-240-LEH 1-1) 0.95Propane—4.7 GPM—No
RELIANCE WATER HEATERS T-H3J-OS-N (TS-240X3-GEH 1) 0.95Natural Gas—4.7 GPM—No
RELIANCE WATER HEATERS T-H3J-OS-N (TS-240X3-LEH 1-1) 0.95Propane—4.7 GPM—No
RELIANCE WATER HEATERS T-H3S-DV-N (TS-340-GIH 1) 0.95Natural Gas—5.4 GPM—No
RELIANCE WATER HEATERS T-H3S-DV-N (TS-340-LIH 1-1) 0.95Propane—5.4 GPM—No
RELIANCE WATER HEATERS T-H3S-DV-N (TS-340X3-GIH 1) 0.95Natural Gas—5.4 GPM—No
RELIANCE WATER HEATERS T-H3S-DV-N (TS-340X3-LIH 1-1) 0.95Propane—5.4 GPM—No
Rheem ECOHS160IN 0.96Natural Gas—4.6 GPM—No
Rheem ECOHS160IP 0.96Propane—4.6 GPM—No
Rheem ECOHS180IN 0.96Natural Gas—5.2 GPM—No
Rheem ECOHS180IP 0.96Propane—5.2 GPM—No
Rheem ECOHSR160IN 0.96Natural Gas—4.6 GPM—No
Rheem ECOHSR160IP 0.96Propane—4.6 GPM—No
Rheem ECOHSR180IN 0.96Natural Gas—5.2 GPM—No
Rheem ECOHSR180IP 0.96Propane—5.2 GPM—No
Rheem RECTGH-S10IN 0.96Natural Gas—5.2 GPM—No
Rheem RECTGH-S10IP 0.96Propane—5.2 GPM—No
Rheem RECTGH-S84IN 0.96Natural Gas—4.6 GPM—No
Rheem RECTGH-S84IP 0.96Propane—4.6 GPM—No
Rheem RECTGH-SR10IN 0.96Natural Gas—5.2 GPM—No
Rheem RECTGH-SR10IP 0.96Propane—5.2 GPM—No
Rheem RECTGH-SR84IN 0.96Natural Gas—4.6 GPM—No
Rheem RECTGH-SR84IP 0.96Propane—4.6 GPM—No
Rheem RTGH-S10I 0.96Natural Gas, Propane—5.2 GPM—No
Rheem RTGH-S84I 0.96Natural Gas, Propane—4.6 GPM—No
Rheem RTGH-SR10I 0.96Natural Gas, Propane—5.2 GPM—No
Rheem RTGH-SR84I 0.96Natural Gas, Propane—4.6 GPM—No
Richmond RMTGHS10IN 0.96Natural Gas—5.2 GPM—No
Richmond RMTGHS10IP 0.96Propane—5.2 GPM—No
Richmond RMTGHS84IN 0.96Natural Gas—4.6 GPM—No
Richmond RMTGHS84IP 0.96Propane—4.6 GPM—No
Richmond RMTGHSR10IN 0.96Natural Gas—5.2 GPM—No
Richmond RMTGHSR10IP 0.96Propane—5.2 GPM—No
Richmond RMTGHSR84IN 0.96Natural Gas—4.6 GPM—No
Richmond RMTGHSR84IP 0.96Propane—4.6 GPM—No
Rinnai CX160I REU-NB2530FFC-US 0.97Natural Gas, Propane—4.6 GPM—No
Rinnai CXP160I REU-NBP2530FFC-US 0.97Natural Gas, Propane—4.6 GPM—No
Rinnai RX160I REU-NB2530FF-US 0.97Natural Gas, Propane—4.6 GPM—No
Rinnai RX180I REU-NB2934FF-US 0.98Natural Gas, Propane—5.3 GPM—No
Rinnai RXP160I REU-NBP2530FF-US 0.97Natural Gas, Propane—4.6 GPM—No
Ruud RUTGH-S10I 0.96Natural Gas, Propane—5.2 GPM—No
Ruud RUTGH-S84I 0.96Natural Gas, Propane—4.6 GPM—No
Ruud RUTGH-SR10I 0.96Natural Gas, Propane—5.2 GPM—No
Ruud RUTGH-SR84I 0.96Natural Gas, Propane—4.6 GPM—No
State ATHR-160M 1 (STHR-160M 1) 0.95Natural Gas, Propane—4.8 GPM—No
State ATHR-160M 1 (STHR-160X3 1) 0.95Natural Gas, Propane—4.8 GPM—No
State ATHR-180M 1 (STHR-180M 1) 0.95Natural Gas, Propane—5.3 GPM—No
State ATHR-180M 1 (STHR-180X3 1) 0.95Natural Gas, Propane—5.3 GPM—No
State ATM-160M-N 1 (STM-160M-N 1) 0.95Natural Gas—4.8 GPM—No
State ATM-160M-N 1 (STM-160X3-N 1) 0.95Natural Gas—4.8 GPM—No
State ATM-180M-N 1 (STM-180M-N 1) 0.95Natural Gas—5.4 GPM—No
State ATM-180M-N 1 (STM-180X3-N 1) 0.95Natural Gas—5.4 GPM—No
State STM-160M-P 1-1 0.95Propane—4.8 GPM—No
State STM-160X3-P 1-1 0.95Propane—4.8 GPM—No
State STM-180M-P 1-1 0.95Propane—5.4 GPM—No
State STM-180X3-P 1-1 0.95Propane—5.4 GPM—No
State T-H3J-OS-N (GTS-240-NEH 1) 0.95Natural Gas—4.7 GPM—No
State T-H3J-OS-N (GTS-240-PEH 1-1) 0.95Propane—4.7 GPM—No
State T-H3J-OS-N (GTS-240X3-NEH 1) 0.95Natural Gas—4.7 GPM—No
State T-H3J-OS-N (GTS-240X3-PEH 1-1) 0.95Propane—4.7 GPM—No
State T-H3S-DV-N (GTS-340-NIH 1) 0.95Natural Gas—5.4 GPM—No
State T-H3S-DV-N (GTS-340-PIH 1-1) 0.95Propane—5.4 GPM—No
State T-H3S-DV-N (GTS-340X3-NIH 1) 0.95Natural Gas—5.4 GPM—No
State T-H3S-DV-N (GTS-340X3-PIH 1-1) 0.95Propane—5.4 GPM—No
Takagi T-H3J-OS-N (T-H3J-OS-N 1) 0.95Natural Gas—4.7 GPM—No
Takagi T-H3J-OS-N (T-H3J-OS-P 1-1) 0.95Propane—4.7 GPM—No
Takagi T-H3J-OS-N (TK-240X3-NEH 1) 0.95Natural Gas—4.7 GPM—No
Takagi T-H3J-OS-N (TK-240X3-PEH 1-1) 0.95Propane—4.7 GPM—No
Takagi T-H3S-DV-N (T-H3S-DV-N 1) 0.95Natural Gas—5.4 GPM—No
Takagi T-H3S-DV-N (T-H3S-DV-P 1-1) 0.95Propane—5.4 GPM—No
Takagi T-H3S-DV-N (TK-340X3-NIH 1) 0.95Natural Gas—5.4 GPM—No
Takagi T-H3S-DV-N (TK-340X3-PIH 1-1) 0.95Propane—5.4 GPM—No
Vesta VRP PLUS-150 0.95Natural Gas, Propane—4.7 GPM—No
Vesta VRP PLUS-150 (VTP-150) 0.96Natural Gas, Propane—4.7 GPM—No
Vesta VRS PLUS-150 0.96Natural Gas, Propane—4.6 GPM—No