Split-System Heat Pump Water Heaters

Heat pump water heaters with the compressor outdoors and the tank indoors — no indoor air-volume requirement and near-silent operation inside, including CO₂-refrigerant systems.

96 certified models in this category.

Model Uniform Energy Factor (UEF)FuelFirst-hour ratingMax flow rateRated storage volumeSmart / connected capable
A. O. Smith Split System Heat Pump 40-Gallon (HPACO-45 1-+AXST-50T 1) 3.52Electric67 gal—45 galYes
A. O. Smith Split System Heat Pump 40-Gallon (HPACO-45 1-+AXST-50TTTP 1) 3.52Electric67 gal—45 galYes
A. O. Smith Split System Heat Pump 40-Gallon (HPACO-45C 1-+AXST-50TC 1) 3.52Electric67 gal—45 galYes
A. O. Smith Split System Heat Pump 40-Gallon (HPACO-45C 1-+AXST-50TCTTP 1) 3.52Electric67 gal—45 galYes
A. O. Smith Split System Heat Pump 50-Gallon (HPACO-45 1-+AXST-50LBTTP 1) 3.55Electric72 gal—48 galYes
A. O. Smith Split System Heat Pump 50-Gallon (HPACO-45 1-+AXST-50S 1) 3.52Electric70 gal—46 galYes
A. O. Smith Split System Heat Pump 50-Gallon (HPACO-45 1-+AXST-50STTP 1) 3.52Electric70 gal—46 galYes
A. O. Smith Split System Heat Pump 50-Gallon (HPACO-45C 1-+AXST-50LBCTTP 1) 3.55Electric72 gal—48 galYes
A. O. Smith Split System Heat Pump 50-Gallon (HPACO-45C 1-+AXST-50SC 1) 3.52Electric70 gal—46 galYes
A. O. Smith Split System Heat Pump 50-Gallon (HPACO-45C 1-+AXST-50SCTTP 1) 3.52Electric70 gal—46 galYes
A. O. Smith Split System Heat Pump 65-Gallon (HPACO-45 1-+AXST-66 1) 3.7Electric82 gal—60 galYes
A. O. Smith Split System Heat Pump 65-Gallon (HPACO-45 1-+AXST-66TTP 1) 3.7Electric82 gal—60 galYes
A. O. Smith Split System Heat Pump 65-Gallon (HPACO-45C 1-+AXST-66C 1) 3.7Electric82 gal—60 galYes
A. O. Smith Split System Heat Pump 65-Gallon (HPACO-45C 1-+AXST-66CTTP 1) 3.7Electric82 gal—60 galYes
A. O. Smith Split System Heat Pump 80-Gallon (HPACO-45 1-+AXST-80 1) 3.8Electric95 gal—73 galYes
A. O. Smith Split System Heat Pump 80-Gallon (HPACO-45 1-+AXST-80TTP 1) 3.8Electric95 gal—73 galYes
A. O. Smith Split System Heat Pump 80-Gallon (HPACO-45C 1-+AXST-80C 1) 3.8Electric95 gal—73 galYes
A. O. Smith Split System Heat Pump 80-Gallon (HPACO-45C 1-+AXST-80CTTP 1) 3.8Electric95 gal—73 galYes
American Split System Heat Pump 40-Gallon (MHPCO-45 1-+MXST-50T 1) 3.52Electric67 gal—45 galYes
American Split System Heat Pump 40-Gallon (MHPCO-45 1-+MXST-50TTTP 1) 3.52Electric67 gal—45 galYes
American Split System Heat Pump 50-Gallon (MHPCO-45 1-+MXST-50LBTTP 1) 3.55Electric72 gal—48 galYes
American Split System Heat Pump 50-Gallon (MHPCO-45 1-+MXST-50S 1) 3.52Electric70 gal—46 galYes
American Split System Heat Pump 50-Gallon (MHPCO-45 1-+MXST-50STTP 1) 3.52Electric70 gal—46 galYes
American Split System Heat Pump 65-Gallon (MHPCO-45 1-+MXST-66 1) 3.7Electric82 gal—60 galYes
American Split System Heat Pump 65-Gallon (MHPCO-45 1-+MXST-66TTP 1) 3.7Electric82 gal—60 galYes
American Split System Heat Pump 80-Gallon (MHPCO-45 1-+MXST-80 1) 3.8Electric95 gal—73 galYes
American Split System Heat Pump 80-Gallon (MHPCO-45 1-+MXST-80TTP 1) 3.8Electric95 gal—73 galYes
Eco-Logical OMNI-50HP1-1A 50-Gallon 3.3Electric50 gal—46 galYes
Eco-Logical OMNI-50HP2-1A 50-Gallon 4.23Electric57 gal—46 galYes
Eco-Logical OMNI-80HP2-1A 80-Gallon 4.11Electric82 gal—74 galYes
Giant Split System Heat Pump 50-Gallon (GTHPCO-45 1-+GTXST-50LBTTP 1) 3.55Electric72 gal—48 galYes
Giant Split System Heat Pump 50-Gallon (GTHPCO-45 1-+GTXST-50S 1) 3.52Electric70 gal—46 galYes
Giant Split System Heat Pump 50-Gallon (GTHPCO-45 1-+GTXST-50STTP 1) 3.52Electric70 gal—46 galYes
Giant Split System Heat Pump 50-Gallon (GTHPCO-45 1-+GTXST-50T 1) 3.52Electric70 gal—46 galYes
Giant Split System Heat Pump 50-Gallon (GTHPCO-45 1-+GTXST-50TTTP 1) 3.52Electric70 gal—46 galYes
Giant Split System Heat Pump 65-Gallon (GTHPCO-45 1-+GTXST-66 1) 3.7Electric82 gal—60 galYes
Giant Split System Heat Pump 65-Gallon (GTHPCO-45 1-+GTXST-66TTP 1) 3.7Electric82 gal—60 galYes
Giant Split System Heat Pump 80-Gallon (GTHPCO-45 1-+GTXST-80 1) 3.8Electric95 gal—73 galYes
Giant Split System Heat Pump 80-Gallon (GTHPCO-45 1-+GTXST-80TTP 1) 3.8Electric95 gal—73 galYes
GSW WATER HEATERS Split System Heat Pump 50-Gallon (GHPCO-45 1-+GXST-50LBTTP 1) 3.55Electric72 gal—48 galYes
GSW WATER HEATERS Split System Heat Pump 50-Gallon (GHPCO-45 1-+GXST-50S 1) 3.52Electric70 gal—46 galYes
GSW WATER HEATERS Split System Heat Pump 50-Gallon (GHPCO-45 1-+GXST-50STTP 1) 3.52Electric70 gal—46 galYes
GSW WATER HEATERS Split System Heat Pump 50-Gallon (GHPCO-45 1-+GXST-50T 1) 3.52Electric70 gal—46 galYes
GSW WATER HEATERS Split System Heat Pump 50-Gallon (GHPCO-45 1-+GXST-50TTTP 1) 3.52Electric70 gal—46 galYes
GSW WATER HEATERS Split System Heat Pump 65-Gallon (GHPCO-45 1-+GXST-66 1) 3.7Electric82 gal—60 galYes
GSW WATER HEATERS Split System Heat Pump 65-Gallon (GHPCO-45 1-+GXST-66TTP 1) 3.7Electric82 gal—60 galYes
GSW WATER HEATERS Split System Heat Pump 80-Gallon (GHPCO-45 1-+GXST-80 1) 3.8Electric95 gal—73 galYes
GSW WATER HEATERS Split System Heat Pump 80-Gallon (GHPCO-45 1-+GXST-80TTP 1) 3.8Electric95 gal—73 galYes
John Wood Split System Heat Pump 40-Gallon (JWHPCO-45 1-+JWXST-50T 1) 3.52Electric67 gal—45 galYes
John Wood Split System Heat Pump 40-Gallon (JWHPCO-45 1-+JWXST-50TTTP 1) 3.52Electric67 gal—45 galYes
John Wood Split System Heat Pump 50-Gallon (JWHPCO-45 1-+JWXST-50LBTTP 1) 3.55Electric72 gal—48 galYes
John Wood Split System Heat Pump 50-Gallon (JWHPCO-45 1-+JWXST-50STTP 1) 3.52Electric70 gal—46 galYes
John Wood Split System Heat Pump 65-Gallon (JWHPCO-45 1-+JWXST-66 1) 3.7Electric82 gal—60 galYes
John Wood Split System Heat Pump 65-Gallon (JWHPCO-45 1-+JWXST-66TTP 1) 3.7Electric82 gal—60 galYes
John Wood Split System Heat Pump 80-Gallon (JWHPCO-45 1-+JWXST-80 1) 3.8Electric95 gal—73 galYes
John Wood Split System Heat Pump 80-Gallon (JWHPCO-45 1-+JWXST-80TTP 1) 3.8Electric95 gal—73 galYes
Lochinvar Split System Heat Pump 40-Gallon (LHPCO-45 1-+LXST-50T 1) 3.52Electric67 gal—45 galYes
Lochinvar Split System Heat Pump 40-Gallon (LHPCO-45 1-+LXST-50TTTP 1) 3.52Electric67 gal—45 galYes
Lochinvar Split System Heat Pump 50-Gallon (LHPCO-45 1-+LXST-50LBTTP 1) 3.55Electric72 gal—48 galYes
Lochinvar Split System Heat Pump 50-Gallon (LHPCO-45 1-+LXST-50S 1) 3.52Electric70 gal—46 galYes
Lochinvar Split System Heat Pump 50-Gallon (LHPCO-45 1-+LXST-50STTP 1) 3.52Electric70 gal—46 galYes
Lochinvar Split System Heat Pump 65-Gallon (LHPCO-45 1-+LXST-66 1) 3.7Electric82 gal—60 galYes
Lochinvar Split System Heat Pump 65-Gallon (LHPCO-45 1-+LXST-66TTP 1) 3.7Electric82 gal—60 galYes
Lochinvar Split System Heat Pump 80-Gallon (LHPCO-45 1-+LXST-80 1) 3.8Electric95 gal—73 galYes
Lochinvar Split System Heat Pump 80-Gallon (LHPCO-45 1-+LXST-80TTP 1) 3.8Electric95 gal—73 galYes
Reclaim Energy MP120F-RC 80-Gallon 3.75Electric121 gal—119 galNo
Reclaim Energy MP80F-RC 80-Gallon 3.8Electric98 gal—80 galNo
RELIANCE WATER HEATERS Split System Heat Pump 40-Gallon (RHPCO-45 1-+RXST-50T 1) 3.52Electric67 gal—45 galYes
RELIANCE WATER HEATERS Split System Heat Pump 40-Gallon (RHPCO-45 1-+RXST-50TG 1) 3.52Electric67 gal—45 galYes
RELIANCE WATER HEATERS Split System Heat Pump 50-Gallon (RHPCO-45 1-+RXST-50LBG 1) 3.55Electric72 gal—48 galYes
RELIANCE WATER HEATERS Split System Heat Pump 50-Gallon (RHPCO-45 1-+RXST-50S 1) 3.52Electric70 gal—46 galYes
RELIANCE WATER HEATERS Split System Heat Pump 50-Gallon (RHPCO-45 1-+RXST-50SG 1) 3.52Electric70 gal—46 galYes
RELIANCE WATER HEATERS Split System Heat Pump 65-Gallon (RHPCO-45 1-+RXST-66 1) 3.7Electric82 gal—60 galYes
RELIANCE WATER HEATERS Split System Heat Pump 65-Gallon (RHPCO-45 1-+RXST-66G 1) 3.7Electric82 gal—60 galYes
RELIANCE WATER HEATERS Split System Heat Pump 80-Gallon (RHPCO-45 1-+RXST-80 1) 3.8Electric95 gal—73 galYes
RELIANCE WATER HEATERS Split System Heat Pump 80-Gallon (RHPCO-45 1-+RXST-80G 1) 3.8Electric95 gal—73 galYes
SANCO2 40-Gallon (GS5-45HPC HP + ECO-43SSAQB) 3.7Electric73 gal—43 galNo
SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) 3.7Electric73 gal—43 galNo
SANCO2 80-Gallon (GS5-45HPC HP + ECO-119GLBK) 3.72Electric134 gal—119 galNo
SANCO2 80-Gallon (GS5-45HPC HP + ECO-83SSAQB) 3.8Electric121 gal—83 galNo
SANCO2 80-Gallon (GS5-45HPC-D HP + ECO-119GLBK) 3.72Electric134 gal—119 galNo
SANCO2 80-Gallon (GS5-45HPC-D HP + ECO-83SSAQB) 3.8Electric121 gal—83 galNo
Smart Solar SSG2-ES 120 80-Gallon 2.85Electric83 gal—120 galNo
Smart Solar SSG2-ES 65 65-Gallon 2.52Electric46 gal—65 galNo
Smart Solar SSG2-ES 80 80-Gallon 2.71Electric55 gal—80 galNo
State Split System Heat Pump 40-Gallon (SHPCO-45 1-+SXST-50T 1) 3.52Electric67 gal—45 galYes
State Split System Heat Pump 40-Gallon (SHPCO-45 1-+SXST-50TG 1) 3.52Electric67 gal—45 galYes
State Split System Heat Pump 50-Gallon (SHPCO-45 1-+SXST-50LBG 1) 3.55Electric72 gal—48 galYes
State Split System Heat Pump 50-Gallon (SHPCO-45 1-+SXST-50S 1) 3.52Electric70 gal—46 galYes
State Split System Heat Pump 50-Gallon (SHPCO-45 1-+SXST-50SG 1) 3.52Electric70 gal—46 galYes
State Split System Heat Pump 65-Gallon (SHPCO-45 1-+SXST-66 1) 3.7Electric82 gal—60 galYes
State Split System Heat Pump 65-Gallon (SHPCO-45 1-+SXST-66G 1) 3.7Electric82 gal—60 galYes
State Split System Heat Pump 80-Gallon (SHPCO-45 1-+SXST-80 1) 3.8Electric95 gal—73 galYes
State Split System Heat Pump 80-Gallon (SHPCO-45 1-+SXST-80G 1) 3.8Electric95 gal—73 galYes
VAUGHN THERMAL MP120F-RC 80-Gallon 3.75Electric121 gal—119 galNo
VAUGHN THERMAL MP80F-RC 80-Gallon 3.8Electric98 gal—80 galNo