5-GPM Gas Tankless Water Heaters

Gas tankless water heaters rated at about 5 gallons per minute under the DOE test's roughly 67 °F temperature rise. At a milder rise the same units deliver more flow — roughly 6.1 GPM at 55 °F.

38 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-180M 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-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-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-180M-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-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
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
Friedrich FDTGH-S10I 0.96Natural Gas, Propane—5.2 GPM—No
Friedrich FDTGH-S84I 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
Midea JSG48-29PCH-LP 0.95Propane—5.2 GPM—No
Midea JSG48-29PCH-NG 0.95Natural Gas—5.2 GPM—No
Midea MGWH180IXNN 0.95Natural Gas—5.2 GPM—No
Midea MGWH180IXPN 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-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-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-1 US) 0.98Natural Gas, Propane—4.7 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
Rinnai CX160I REU-NB2530FFC-US 0.97Natural Gas, Propane—4.6 GPM—No
Rinnai RX180I REU-NB2934FF-US 0.98Natural Gas, Propane—5.3 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