SunEarth Cascade 2 Hot Water Station 80 / 120 Gallon Solar Drainback System
SunEarth Cascade 2 Hot Water Station 80 / 120 Gallon Solar Drainback System - 80 Gal is backordered and will ship as soon as it is back in stock.
SunEarth Cascade 2 Hot Water Station – 80/120 Gallon Solar Drainback System
The SunEarth Cascade 2 Hot Water Station (HWS) 80/120 Gallon is a complete, OG-300 certified drainback solar water heating system engineered to deliver exceptional efficiency, reliability, and freeze protection for residential solar thermal applications. Factory assembled and hydraulically tested, the Cascade 2 HWS combines premium SunEarth components into one professionally engineered package, dramatically reducing installation time while improving long-term system performance.
The Cascade 2 system utilizes a gravity drainback design that automatically drains the collector loop whenever the circulator pump stops operating. This passive freeze protection eliminates standing water in the collectors and exposed piping, allowing reliable operation in climates experiencing temperatures as low as -50°F without depending solely on glycol for freeze protection.
The system includes an 80/120-gallon insulated solar storage tank, integrated drainback reservoir, stainless steel circulator pump, differential temperature controller, copper heat exchanger, thermostatic mixing valve, expansion tank, and factory-installed service valves. Designed specifically for use with SunEarth Empire Series solar collectors, the Cascade 2 HWS provides dependable renewable hot water while minimizing maintenance requirements.
⚙️Key Features:
| Feature | Benefit |
|---|---|
| 80/120-Gallon Solar Storage Tank | Large domestic hot water capacity |
| Factory-Assembled Hot Water Station | Faster installation and fewer field connections |
| Gravity Drainback Design | Passive freeze protection without stagnant collector fluid |
| OG-300 Certified System | Independently tested for performance and reliability |
| Stainless Steel 3-Speed Circulator Pump | Efficient solar loop circulation |
| Copper Heat Exchanger | Excellent heat transfer performance |
| LCD Differential Temperature Controller | Automatically optimizes solar collection |
| Thermostatic Mixing Valve | Adjustable outlet temperature for user comfort |
| Service Bypass Valves | Simplifies maintenance and servicing |
| Genuine SunEarth OEM System | Designed specifically for Cascade 2 solar systems |
⚙️Technical Specifications:
| Specification | Details |
|---|---|
| Tank Capacity | 80/120 Gallons |
| Product Dimensions | 68" H × 29" L × 24.5" W |
| Product Weight | 273 lb |
| Manufacturer | SunEarth |
| Part Number | 100004-14.1-80 |
| Product Type | Cascade 2 Hot Water Station |
| System Type | Drainback Solar Water Heating |
| Drainback Reservoir Capacity | 6.0 Gallons |
| Tank Construction | Glass-Lined Steel Vessel |
| Tank Insulation | 2" Non-CFC Foam Insulation |
| Heat Exchanger | Copper Double-Wall Tubing |
| Circulator Pump | 1/12 HP Stainless Steel, 3-Speed |
| Expansion Tank | Potable Thermal Expansion Tank |
| Mixing Valve | 3/4" Lead-Free Bronze |
| Potable Water Connections | 3/4 in. |
| Input Voltage | 120 VAC |
| Maximum Solar Power Input | 150 Watts |
| Optional Backup Heating Element | 4,500 W @ 240 VAC |
| Maximum Collector Area | 96 sq. ft. |
| Maximum Building Height | 20 ft. |
| Freeze Protection | Gravity Drainback (-50°F Rated System) |
| Controller | LCD Differential Temperature Controller |
| Certification | ICC-SRCC OG-300 |
| Application | Residential Solar Domestic Hot Water |
⚙️Technical Documents:
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

