SunEarth THERMORAY Black TR-20
SunEarth THERMORAY Black TR-20 is backordered and will ship as soon as it is back in stock.
The SunEarth ThermoRay Black TR-20 is a glazed liquid flat-plate solar thermal collector designed for residential and commercial solar water-heating applications. Engineered pool-heating systems require appropriate heat-exchanger separation.
It features a selective MiroSol® TS absorber coating, low-iron tempered glass, copper manifolds and risers, and a bronze-anodized aluminum frame.
Key Features
- Selective MiroSol® TS Coating: Black selective absorber coating; the master specification sheet’s materials table lists 95% absorptivity and 20% emissivity.
- Low-Iron Tempered Glass: Glazing protects the absorber while admitting solar energy.
- Copper Manifolds & Risers: 1" nominal copper headers and ⅜" nominal copper risers.
- R-12 Minimum Insulation: Polyisocyanurate and fiberglass insulation helps reduce heat loss.
- Bronze-Anodized Aluminum Frame: AA 6063-T6 aluminum construction with an integral mounting channel.
- Solar Thermal Applications: Designed for solar water heating and engineered pool-heating systems using appropriate heat-exchanger separation.
Technical Specifications
| Specification | TR-20 |
|---|---|
| Manufacturer | SunEarth |
| Product Series | ThermoRay TR (Black) |
| Model | TR-20 |
| SKU / Part Number | 100009-3-20.1 |
| Collector Type | Glazed Liquid Flat-Plate |
| Gross Area — Master Specification Sheet | 20.6 ft² |
| Aperture Area | 18.3 ft² |
| Product Dimensions — Master Specification Sheet | 48.2" W × 61.9" L × 3.25" D |
| Dry Product Weight | 62 lb |
| Fluid Capacity | 0.7 gallons |
| Design Flow Rate | 0.51 GPM |
| Pressure Drop at Design Flow | 0.005 psig |
| Maximum Flow Rate | 12 GPM |
| Maximum Operating Pressure | 160 psi |
| Temperature Limit — Master Specification Sheet | 400 °F; confirm applicable operating limit with SunEarth before system design |
| Absorber Plate | Aluminum |
| Absorber Coating | Selective MiroSol® TS |
| Absorptivity / Emissivity — Specification Sheet Materials Table | 95% / 20% |
| Header Material / Size | 1" Nominal Copper (1.125" OD) |
| Riser Size | ⅜" Nominal Copper (0.50" OD) |
| Glazing | Low-Iron Prismatic/Matt Tempered Glass |
| Frame | AA 6063-T6 Bronze-Anodized Aluminum |
| Insulation | Polyisocyanurate + Fiberglass, R ≥ 12 |
| Maximum Wind / Snow Load | ±90 psf |
| Available Connections | 1" Sweat (standard); High-Temp FKM SX Press; High-Temp FKM O-Ring Union |
Product Highlights
- Solar Water Heating: Glazed flat-plate collector for residential and commercial solar thermal systems.
- Selective Absorber: MiroSol® TS coating on an aluminum absorber plate.
- Durable Construction: Bronze-anodized aluminum frame, copper fluid passages, and tempered glass.
- Insulated Design: R-12 minimum insulation reduces heat loss.
- Integral Mounting Channel: Supports mounting without penetrating the extruded casing.
- Manufacturer Documentation: Combined installation, operation, and maintenance manual and collector warranty are linked below.
Technical Documents
- ThermoRay TR Series Specification Sheet (August 2025) (PDF)
- SunEarth 2026 Product Catalog (PDF)
- Empire and ThermoRay Collectors — Installation, Operation & Maintenance Manual (PDF)
-
SunEarth Collector Ten-Year Limited Product Warranty (PDF)
SunEarth THERMORAY Black TR-20
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Let customers speak for us
Price was right
This is a great unit for anyone who is on a well!!
Great pump and great price. I actually ordered from a human being and they were great
Very nice expansion tank. Mine is a 16 gallon. Has feet so it will sit on the floor next to your boiler and doesn’t have to be mounted on the wall.
It’s sturdy enough to support your Air Separator, Pressure Regulator and Backflow Preventer.
I recently installed my new 29kw BTH Ultra boiler and so far I am really impressed.
We live in an old 2 story brick farmhouse built in 1814! This unit replaced an Outdoor Wood Boiler with a 750 gallon tank. It was about 30 years old and last winter the tank rusted thru and busted.
We have 11 cast iron “American Radiators” and they heat the house well.
The BTH will heat all the water to 150 degrees in about an hour and we don’t have to build a fire and wait hours.
The most impressive part is the Outdoor Temperature sensor. When it’s not that cold outside, the unit doesn’t turn on all the elements at once and slowly heats the water which saves a lot of electricity in the warmer months!
I’m looking forward to see how well it does when the temperature drops between 0-30 and it snows and I don’t have to go outside several times a day and load wood. I’m confident the Ghost Rider will perform!
Thanks.
The boiler works great easy install. But the tech support we got hold of was in French so not a lot of help.manual was easy to follow on wiring
Easy purchase - exactly what I needed
Plumber was very happy with it. So are we.
I’ve been using Everflux for some years now and it’s simply the best there is.
Excellent product for descaling tankless water heater.
Once again, great quick service
Good go,, 👍👍👍
Great service. Happy to find the products I needed.
Great place to order from. No complaints.
Had everything i needed and step by step directions!
