Contact Us
1-800-317-9054
Refer & Earn
LIMITED TIME OFFER: FREE SHIPPING! ORDER NOW
Terms and conditions apply. See details here.
  2. Home
  3. SunRain Vacuum Tubes

SOLAR EVACUATED
VACUUM TUBES

When investing in solar water heaters, it is important to ensure the "engine" you select is the most powerful and the longest lasting made. This if why we use SunRain's patented "3-Hi" solar vacuum tubes. The absorbing coating found on the inner layer determines how efficient the vacuum tube will operate. The method and material of this coating will also define the life expectancy of the solar vacuum tube.

Most vacuum tubes use a hi-tech reactive sputtering process to coat the inner tube. Most commonly this coating is made from an aluminum and aluminum-nitrogen coating (Al-N/Al) which is the primary absorbing coating.

Solar water heaters

SOLAR EVACUATED VACUUM TUBES

Solar water heaters

When investing in solar water heaters, it is important to ensure the "engine" you select is the most powerful and the longest lasting made. This if why we use SunRain's patented "3-Hi" solar vacuum tubes. The absorbing coating found on the inner layer determines how efficient the vacuum tube will operate. The method and material of this coating will also define the life expectancy of the solar vacuum tube.

Most vacuum tubes use a hi-tech reactive sputtering process to coat the inner tube. Most commonly this coating is made from an aluminum and aluminum-nitrogen coating (Al-N/Al) which is the primary absorbing coating.

background banner

Advantages of SunRain
Vacuum Tube Technology

3- LAYER ADVANCED COATING

SunRain's solar vacuum tube technology uses an International patented film coating called “3 Hi”. Within each solar evacuated tube, 3 systems are used to ensure the most effective heat absorption. This included a AL-N/AI absorption layer but also a second anti-reflection aluminum layer as well as a third copper layer for infrared waves. The added two layers conduct heat better and stabilize the coating allowing for a much longer lifespan of 20 year or greater. Test Drive one of our solar systems and you will quickly see the difference a powerful "engine" makes. See below for comparison of SunRain's performance versus other leading solar water heating evacuated tube suppliers.

3- Layer Advanced Coating

SILVER COATED ENHANCE BULB

SunRain’s unique aluminum/silver coated heat transfer bulb it 2 times larger than most other heat pipes. This provides more heat energy transfer resulting in a more efficient collector. The added coating is used to generate a much better heat transfer from the bulb to the manifold. Also, this coating helps ensure no corrosion or oxidization occurs unlike standard copper bulbs.

Silver Coated Enhance Bulb

SunRain Certification for Government Grants

SRCC Solar Certification

SRCC Certification

CSA Certification

CSA Certification

Solarkeymark Certification

Solarkeymark Certification

background banner

SUNRAIN VERSUS THE COMPETITION

As the world's leader in Solar Vacuum Tubes, SunRain clearly has done so by providing quality products at affordable prices. SunRain Evacuated Tube Solar Collectors are the most cost-effective collectors on the market–they offer the best performance at the best price–THE BEST VALUE AVAILABLE! SunRain Solar Evacuated Tube Solar Collectors out-perform all major competitors and are available for hundreds of dollars less.

Based on actual SRCC ratings, here is how the SunRain TZ 1800 30 collectors out performs against all other 30 tube Solar Evacuated Tube collectors:

SRCC Ratings

When comparing the BTU/$ values for SunRain Evacuated Tube Solar Collectors and Apricus’ AP-20 Solar Collector, it is clear that SunRain Evacuated Tube Solar Collectors are the better value–hands down. And these figures are even more staggering when compared with the selling price of Thermax's Solar Collectors.

Supplier BTU/Day MSRP BTU/$
SunRain 44,000 1250 35.20
Apricus 43,000 1,500 28.67
Thermomax 42,000 2,000 21.00

These numbers are clear as day–illustrating the tremendous value of the SunRain Evacuated Tube Solar Collectors compared to the leading national competitors. If you want to make the smart decision and choose the right solar collector for your home or for your dealership/installation business, SunRain Solar Vacuum Tube Collectors deliver the performance, quality low price and value you need!

TECHNICAL SPECIFICATIONS

Specification Heating Series Heat Pipe
TZ58/1800-20R		 Heating Series Heat Pipe
TZ58/1800-30R
Number of tubes 20 30
Frame & manifold Aluminium Aluminium
Heating type Copper Heat Pipe Copper Heat Pipe
Lenth of Tube 1800mm 1800mm
OD of tube 58 mm 58 mm
ID of tube 50 mm 50 mm
Glass Thickness 2 mm 2 mm
Water Capacity 1.8 L (.4 gallons) 2.6 L (.6 gallons)
Weight dry 175lbs 220lbs
Weigh Wet 180 lbs 230 lbs
Max BTU/HR 5000 BTU/hr 7,517 BTU/hr
Pressure 116 psi 116 psi
Glass Vacuum Material Borosilicate glass Borosilicate glass
Vacuum P<5x10 -3 PA P<5x10 -3 PA
Frame Included Included
Warranty 10 years 10 years
Vacuum Tube Brochure Technical

MOUNTING OPTIONS FOR TZ58/1800 30 R VACUUM TUBE COLLECTORS

+Roof Mount 20 Tubes Dimensions

Roof Mount 20 Tubes Dimensions

+Basic Frame Dimensions

Roof Mount 30 Tubes Dimensions

+Ground Mount Diagram for Solar System

Ground Mount

Performance Specifications

City HP-30SC
BTU/yr		 KWhr
New York 6,750,000 1,975
Philadelphia 7,320,000 2,142
Miami 12,150,000 3,555
Chicago 7,080,000 2,071
Denver 8,670,000 2,537
Los Angeles 9,800,000 2,868
Winnipeg 7,346,00 2140
Calgary 7,405,000 2,167
Toronto 6,900,000 2,019
Vancouver 6,300,00 1840
Vacuum Tube Brochure Technical
FIND OR BECOME A NORTHERN LIGHT SOLAR DEALER

SOME OF OUR CUSTOMERS

Calgaryzoo
Sandals
Montecristco
BURNBRAE
Clear View Pools
Taste BC
Solartubs Logo

LET US HELP

OUR PRODUCTS

ABOUT US

ABOUT US