SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) is a heat pump (hybrid electric) water heater from SANCO2 with a 43 gallon rated tank and a 73 gallon first-hour rating at a 3.7 UEF — 868 kWh/yr certified use.
Efficiency
Uniform Energy Factor (UEF)
3.7
Annual electricity use
868 kWh/yr
General
Fuel
Electric
Capacity
First-hour rating
73 gal
Rated storage volume
43 gal
Draw pattern
Medium
Heat pump
Heat pump type
Split System HPWH
Refrigerant (GWP)
R-744 (CO₂) (GWP:1 | Lower GWP)
Installation
Input voltage
230
Max current draw
7 A
Smart features
Smart / connected capable
No
Certification
ENERGY STAR certified
Yes
Who is the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) for?
Its 73 gallon first-hour rating suits a
household of 3–4 people under DOE sizing guidance.
Estimated running cost: about $148/year at the national
average electricity rate (868 kWh/yr certified use).
Needs a 240 V circuit; at 7 A max draw plan for a 10 A breaker (NEC 125% continuous-load rule).
Also sold as
The SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) is certified hardware that SANCO2 and its partner brands
publish under 2 names. The same specifications apply to every
variant:
Is the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) ENERGY STAR certified?
Yes, the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) holds a current ENERGY STAR certification for water heating efficiency (UEF 3.7).
How much does the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) cost to run per year?
About $148 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What electrical circuit does the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) need?
The SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) runs on a 240 V circuit drawing up to 7 A; per the NEC 125% continuous-load rule plan for at least a 10 A breaker (check the installation manual for the required circuit).
Is the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) a smart water heater?
No, the SANCO2 40-Gallon (GS5-45HPC-D HP + ECO-43SSAQB) is not connected-capable — it has no app connectivity or demand-response support.
