SunEarth is a California-based solar thermal collector manufacturer, headquartered in Fontana CA. SunEarth has been in continuous operation through US solar thermal market cycles, producing SRCC-certified flat-plate solar thermal collectors and complete residential systems. Competes head-to-head with Heliodyne in the US solar thermal premium tier.
Same context as Heliodyne — solar thermal is a niche-but-relevant category in 2026, with solar PV + heat pump water heater typically winning the economics in most modern installs. SunEarth competes within the remaining solar thermal applications: high-demand hot water, off-grid scenarios, state-incentive markets (Hawaii notably).
Both are premium SRCC-certified flat-plate solar thermal collectors. Differences are modest:
| SunEarth EP-40-D | Heliodyne Gobi 410-001 | |
|---|---|---|
| Collector area | 40 sq ft | 32 sq ft |
| Origin | Fontana CA | Richmond CA |
| Warranty | 10 years | 10 years |
| Typical price | $1,999-2,499 | $1,899-2,399 |
Choose by local installer availability and integration with system components.
SunEarth Empire EP-40-D is the volume residential solar thermal collector pick. ThermoRay-80 for standard household; ThermoRay-120 for high-demand. Competitive with Heliodyne in spec and warranty. Solar PV + heat pump usually wins economics in 2026 — for installs that still favor solar thermal, SunEarth and Heliodyne are the premium US options.