AO Smith® - Atmospheric Tall Residential Water Heater, 30 gal, Natural Gas, 32 Kbtu/hr, 0.6 Energy Factor

AO Smith® - Atmospheric Tall Residential Water Heater, 50 gal, Propane, 37 Kbtu/hr, 0.62 Energy Factor

State Industries - Gs650Rcutg-400 Ng 50 Gal 50K Btu Lo Nox Hi Rec 22X61 W/ Side Loop

State Industries - Atmospheric Tall Residential Water Heater, 50 gal, Natural Gas, 40 Kbtu/hr, 0.62 Energy Factor

RUUD® - Power Tall Residential Water Heater, 40 gal, Propane, 36 Kbtu/hr, 0.69 Energy Factor

RUUD® - Power Tall Residential Water Heater, 40 gal, Natural Gas, 40 Kbtu/hr, 0.69 Energy Factor

RUUD® - Power Tall Residential Water Heater, 50 gal, Propane, 42 Kbtu/hr, 0.68 Energy Factor

American Standard® - Atmospheric Low Boy Residential Water Heater, 50 gal, Natural Gas, 40 Kbtu/hr, Ultra Low NOx, 0.65 Energy Factor