The Advantage of High Performance Vacuum Tube Systems at a Glance:
With the drastic increase in oil and gas prices as well as increased environmental pollution, new and efficient systems for energy conservation are necessary. The price for crude oil alone has increased approximately 1,000% in the last ten (10) years.
In the following examples we are assuming an energy price increase of 15% per year. It is evident that the high performance collectors from are economically and ecologically beneficial.
A. Economic Efficiency through Precision Technology with TPS inside:

Vacuum Technology: |
100% Insulation Technology |
Nano-Anti-Reflex Coating: |
Higher Degree of Transmission (up to 96%) |
Absorber coated on both sides: |
Additional Yield Through Use of Reflected Radiation |
B. More Heat Yield, Especially in Winter During Cold Seasons

This image demonstrates the heat loss of a vacuum tube collector with the NARVA High Performance tube. The vacuum technology found in the system provides optimum insulation which transfers the heat directly into the system, resulting in a higher efficiency factor.
C. Projected Savings of Heating Oil with a 15% Price Increase Each Year
Heating Support with the High Performance Collector |
'Approximate' Savings in 10 Years:
|
Single Detached Home |
12,000 kWh |
$ 33,750 |
32 tons |
Hotel |
3 Mil. kWh |
$ 843,750 |
798 tons |
4 million outdated heating installations
(each 12,000 kWh per year)* |
480 bil. kWh |
$ 135 billion |
128 mil. tons |
D. Independence with the Evacuated Collectors
You think you have the solution to cold fusion, but the evacuated tube collector behaves according to the laws of physics. However, physics is exploited here naturally, not only is the sun’s radiation used, the diffused and reflected radiation is captured on the backside of the absorber because it is also coated with absorption material.
The evacuated tube collector achieves a heating oil savings of 37 to 53 gallons per year with a solar radiation of 1000-1200 kWh per M2 per year. If we assume that the heating oil prices are currently $5.00 per gallon and it increases 15% per year it would be $10.00 per gallon in five (5) years, the collectors High Performance system not only pays for itself, but it is a must! Not only for your wallet, but also for the environment.

“I’d put my money on the sun and solar energy. What a source of power!
I hope we don’t have to wait until oil and coal run out before we tackle that.”
Thomas Edison, 1847-1931
Advantages of a High Performance Collector:
- A 50 percent labor cost reduction is possible with the assembly by means of the vacuum tube plug-in connection (one person can assemble without difficulty).
- 100 percent savings in installation materials.
- Substantial savings on flat-roof construction because the NARVA High Performance tubes can be angled towards the sun. No on-roof construction on flat roofs is necessary for the High Performance vacuum tube collector
High Performance Vacuum Tube Collector
Higher energy yield through precision engineering
Click on the image for larger version
Click on the image for larger version
The Principle of a solar thermal installation
Explanation of the construction and the method of operation
Solar thermal installations consist of a solar collector on the roof,
a control unit with a pump and a potable water storage tank.
The solar collector absorbs the heat from the sun‘s radiation
(infrared and UV) and transfers it onto the solar liquid
(transport medium) which heats the water in the
potable water storage tank.
Is a solar installation worthwhile?
As the prices for oil and gas continue to rise the financial advantages of the
high performance system become more evident. Return on Investment (ROI)
is approx
6-8 years based on the assumed price increase of 15% annually.
Between 1998 and 2008, the price of oil has increased approximately 1000%.
A barrel of crude oil in 1998 cost $10.00, in January 2008 $100.00 and in June 2008
the price was up to $140.00. If the prices continue to increase, heating will become
a luxury and ROI will be even shorter, down to 2-3 years. Facing this reality you can
commit yourself to an investment, which will realistically achieve payback in
less than 10 years. This provides you with financial security, and takes
a major step towards energy independence.
How expensive is solar installation?
a) Hot water: 4 person household
about $5,689 - $11,400 USD
b) Hot water and heating support: 4 person
household about $11,400 - $15,620 USD
Frequently Asked Questions about Vacuum Tub Collectors
Is my house suitable for a solar heating installation?
Southeast to Southwest roof exposure is the most suitable. With the system you can use a west to east exposure and still be efficient with a somewhat larger installation surface. Due to the alignment and rotation capability of the NARVA High Performance vacuum tubes toward the direction of the sun, the collector can be mounted (at no additional cost) on facades and/or, flat roofs without expensive standup framing.
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