Solar Water Heating


Solar Heat for Solar Domestic Hot Water and Solar Thermal Applications


Solar Water Heat Systems


WSE is comminted to giving you the solar truths whether solar thermal is for you.

First step is to do a FREE solar thermal analysis using WSE Polysun Thermal Simulation Software.

Will tell you right away if solar works in your location and for your application.

Thermal Tubes

WSE58 Super Tubes

Our new WSE58 Super Tube system gives you the most efficient panels on the market today at the best payback.

The WSE58ST is so simple in design that you can expect trouble free operation for over 40 years with 50% thermal output even on cloudy days

20 Tube system produces up to 4,000 BTU/hr

CSA and SRCC Approved

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Your Environmentally Friendly Hard Water Solution

WSE HydroFLOW is the green, hard water solution that provides effective, environmentally friendly, water treatment, and energy savings. We employ patented, electronic technology to prevent and eliminate lime scale build-up caused by "hard water problems". WSE HydroFLOW is the world leader in cost effective, "green" electronic water conditioning.

Lots of testimonials with great return on investment

Click here for more information


Popular applications of our solar water heating panels include
  • Solar Water Heating Systems for Garage or Shed
  • Solar Car Wash
  • Solar Domestic Heating Hotels
  • Solar Domestic Water Heating
  • Solar Domestic Hot water Apartmants and Condos
  • Solar Heating whether radiator or floor heating
  • Solar heating Commercial and Warehouse building
  • Solar Heating swimming pools, jacuzzis or the like
  • Solar Off Grid Heating Applications
  • Solar Heating some crazy idea ( these are the most fun)


WSE58 Super Tube Solar Heating

Solar Domestic Water Heating System

Solar Swimming Pool Heaters

Off Grid Solar Domestic Water Heater System Designed for Seasonal Applications

Solar Commercial Heating

WSE Solar Heating Flat Panels

Seeing is believing solar water heat


Solar Heating Control System

Low Cost Solar Domestic Water Heating for your Cabin

Super Heat Metal Vacuum Tube Collector WSE70

Heat Exchanger

Understandinf Solar Thermal

Solar Cooling and Heating Combined

Solar Piping Solutions


Solar domestic Diagram

Solar Domestic Water Heating System

Checkout our totally off grid solar heating system which ellimates even your pump power.

Never worry about power failures

Designed in Canada for Canadians

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Solar Swimming Pool Heaters

Our solar water heaters and virtually eliminate your pool heating bills for life.

Let us do a free analysis to ensure solar our solar system makes sense to you

Click here for more information

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Solar thermal controller diagram
Off Grid Solar Domestic Water Heater System Designed for Seasonal Applications

This system is designed specifically for solar heating applications where the circulation pump is powered by a solar panel

Solar power is more reliable than our aging power grid which could fail in the middle of a hot sunny day potentially causing a catastrophic system failure.

Solar Off Grid info

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Solar Commercial Heating

WSE will assist with your decision whether solar heating is for your business.

In many cases the payback can be in under 4 years with over $200,000 in free energy over the life of the product.

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More Information Commercial Solar water Heat

Solar Piping solutions

WSE has a system solution with pre-insulated flow and return pipes for solar hot water heating systems used to connect the solar collector with the storage tank in an easy, quick and professional

Solar Piping info

Solar Heat Transfer Station

The WSE solar heat transfer station is a preinstalled and leak-tested unit with integrated double wall heat exchanger for transferring heat from WSE solar collector to the storage tank.

Solar Transfer Station Info


We suggest you read the article below to better understand the difference in these technologies.

Understanding Solar Thermal Flat Panels and Evacuated Tubes

We recommend we do a WSE Polysun analysis comparing the different solar thermal technologies to determine what is best for you. link

In some cases we do not recommend our WSE flat panels if you plan to heat during the winter months in very cold conditions, basically they have a low insulation factor, like trying to heat your house in the winter with single pane windows. The WSE Polysun analysis will give a clear picture of their performance in your geographic location.

WSE backs all our panels up with a one year money back guarantee

WSE Solar evacuated tube collectors offer reliable hot water heating for Canada.

Our evacuated tubes have a number of advantages: the work on overcast days, in -60 degree weather, and the tubes can be installed and replaced individually without special tools. The evacuated tubes act like giant thermos, allowing 95% of the sun's radiation in, but only 3 to 5% out.

Thermal conduction and convection losses are almost nothing (under 2%) because of the vacuum gap. This design allows the system to work in very low temperatures (down to about -70°F).

solar water heating

Stop in and see our WSE47 non pressurized, WSE58 pressurized super tubes, WSE 58 pressurized solar water pipes, WSE pressurized flat plates, solar circulation pumps, solar controllers and heat exchangers in action. Pick a sunny day for best solar results

solar water heating

WSE Flat Panels

The WSE FP is our most technologically advanced and efficient flat plate produced todate with a price that will ensure great ROI

Extremely versatile - appropriate for both residential and commercial applications such as domestic water heating, radiant floor/space heating, pool and hot tub heating, etc.

Assurance of quality - SRCC and Solar Keymark certified

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Click here for more information


Seeing is believing

Not convinced that you can make heat using the sun? Stop by our office and pick up one of the solar evacuated tubes . For $10 including GST and PST you can take home one of the evacuated tubes to see for yourself how much heat it will make. Simply fill it with tap water and leave it in the sun and in a few hours it will boil!

This is a pickup offer only. Please be careful, this is a glass tube full of boiling water. Put it in a secure place in the sun and keep children and pets away.

Click here to see how amazing solar water heating is (Also check out our totally off grid solar water heater system)


"Owing to the outstanding ability of these tubes to absorb sunlight and heat water, it is vital that you exercise extreme caution when in the vicinity of the tube once it has been in sunlight for ninety minutes, as boiling water has been known to erupt suddenly and could cause serious burns to anyone caught in the eruption. Never peer inside the tube and always stand away from the angle in which it is pointed.""

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solar water heating panels solar water heat
solar heat


Happy New Year to you. Today in the Yukon it was -41c warming to -33c the sun was out nice. The solar system was heating the water at 35c.
Nice and hot. I had a neighbour over looking at things and he was very impressed with it. Who would have known that one can get that kind of heat out of the sun on a cold Yukon day. As the day light gets a little longer it will only get better. I will start to show and tell a little more. I think every one will want one in their home in the north. Good deal. Have your self a good day.

More comments February 12th 2009

Hope all is well on your end. We are seeing more sun these days. Today started at -33c warming to -25c I watched the heat in the system go up to 72c it was so hot one could not put your hand near any of the lines.
Wow! It has been preheating the water tank good.

Scott Jamieson

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Our WSE47 solar panels in Saskatchewan produce over 120 million btu's of heat over its life time, 6 million btu per year or 2,200 btu per hour

WSE47 Solar Water Heating Panel

Click here for more information

Download Brochure

WSE47 Assembly Instructions


Low Cost Solar Domestic Water Heating for your Cabin

This system is a dream come true for cabin owners that want a low cost solar domestic water heating

Click here for more information

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WSE70 small

Super Heat Metal Vacuum Tube Collector WSE70

With small thermal capability, it can output power in 2 minutes. The highest temperature of cooling end can reach 250 degree centigrade. The average heat efficiency can still be 50% even under -50 degree centigrade

High efficient selective absorptive coatings and vacuum heat insulation technology ensure the tube to get higher heat output in cloudy weather and in moist area, especially in winter.

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Brazed Plate Heat exchangers

Transfer up to 22,500 BTU/hr

Click here for more information

Download Brochure

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WSE Solar Dissipator and Solar Heater

can dissipate the excessive heat produced during summer periods, or periods of non-use. This protects systems from overheating and/or excessive hot water dumping.

It also operates as a great heater for homes, garages, warehouses or where ever you need heat from the sun.

Click here for more information

Download Brochure

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ach evacuated tube consists of two glass tubes made from extremely strong borosilicate glass. The outer tube is transparent allowing light rays to pass through with minimal reflection. The inner tube is coated with a special selective coating (Al-N/Al) which features excellent solar radiation absorption and minimal reflection properties. The top of the two tubes are fused together and the air contained in the space between the two layers of glass is pumped out while exposing the tube to high temperatures. This "evacuation" of the gasses forms a vacuum, which is an important factor in the performance of the evacuated tubes.

Why a vacuum? As you would know if you have used a glass lined thermos flask, a vacuum is an excellent insulator. This is important because once the evacuated tube absorbs the radiation from the sun and converts it to heat, we don't want to lose it!! The vacuum helps to achieve this. The insulation properties are so good that while the inside of the tube may be 150oC / 304oF , the outer tube is cold to touch. This means that evacuated tube water heaters can perform well even in cold weather when flat plate collectors perform poorly due to heat loss (during high Delta-T conditions).

In order to maintain the vacuum between the two glass layers, a barium getter is used (the same as in television tubes). During manufacture of the evacuated tube this getter is exposed to high temperatures which causes the bottom of the evacuated tube to be coated with a pure layer of barium. This barium layer actively absorbs any CO, CO2, N2, O2, H2O and H2 out-gassed from the evacuated tube during storage and operation, thus helping to maintaining the vacuum. The barium layer also provides a clear visual indicator of the vacuum status. The silver coloured barium layer will turn white if the vacuum is ever lost. This makes it easy to determine whether or not a tube is in good condition.

Evacuated tubes are aligned in parallel, the angle of mounting depends upon the latitude of your location. In a North South orientation the tubes can passively track heat from the sun all day. In an East West orientation they can track the sun all year round.


Important Things You should know

  • Each of our WSE47collectors has an output of approximately 2,200 btu per hour or about 586 watts. Meaning you will get 2,200 btu worth of energy every hour the sun shines free for life.
  • WSE58 pressurized collectors put out over 2,600 btu per hour.
  • WSE58 Super Tubes put out over 4,000 btu per hour with a 40 year life
  • Due to the cylindrical shape of the evacuated tube, the sun is perpendicular to the surface of the glass most of the day.This means that solar water heaters gives you output all day long.

WSE47 BTU/hr Graph


There are basically three types of thermal solar collectors: flat-plate, evacuated-tube and concentrating.

Flat-Plate collectors comprise of an insulated, weatherproof box containing a dark absorber plate under one or more transparent or translucent covers. Water or heat conducting fluid passes through pipes located below the absorber plate. As the fluid flows through the pipes it is heated. This style of collector, although inferior in many ways to evacuated tube collectors, is still the most common type of collector in many countries.

Evacuated Tube solar water heaters are made up of rows of parallel, glass tubes. There are several types of evacuated tubes (sometimes also referred to as Solar Tubes).

Type 1 (Glass-Glass) tubes consists of two glass tubes which are fused together at one end. The inner tube is coated with a selective surface that absorbs solar energy well but inhibits radiative heat loss. The air is withdrawn ("evacuated") from the space between the two glass tubes to form a vacuum, which eliminates conductive and convective heat loss. These tubes perform very well in overcast conditions as well as low temperatures. Because the tube is 100% glass, the problem with loss of vacuum due to a broken seal is greatly minimized. Glass-glass solar tubes may be used in a number of different ways, including direct flow, heat pipe, or U pipe configuration. Apricus uses a high efficiency heat pipe and heat transfer fin design to conduct the heat from within the evacuated tube up to the header. For more information about heat pipes, click here.

Type 2 (Glass-Metal) tubes consist of a single glass tube. Inside the tube is a flat or curved aluminium plate which is attached to a copper heat pipe or water flow pipe. The aluminium plate is generally coated with Tinox, or similar selective coating. These type of tubes are very efficient but can have problems relating to loss of vacuum. This is primarily due to the fact that their seal is glass to metal. The heat expansion rates of these two materials. Glass-glass tubes although not quite as efficient glass-metal tubes are generally more reliable and much cheaper.

Type 3 (Glass-glass - water flow path) tubes incorporate a water flow path into the tube itself. The problem with these tubes is that if a tube is ever damaged water will pour from the collector onto the roof and the collector must be "shut-down" until the tube is replaced.

Concentrating collectors for are usually parabolic troughs that use mirrored surfaces to concentrate the sun's energy on an absorber tube (called a receiver) containing a heat-transfer fluid, or the water itself. This type of solar collector is generally only used for commercial power production applications, because very high temperatures can be achieved. It is however reliant on direct sunlight and therefore does not perform well in overcast conditions.

Types of Solar Water Heating Systems

Solar water heating systems (SWHS) can be either active or passive. An active system uses an electric pump to circulate the fluid through the collector; a passive system has no pump and relies on thermo-siphoning to circulate water. The amount of hot water a solar water heater produces depends on the type and size of the system, the amount of sun available at the site, installation angle and orientation. SWHS are also characterized as open loop (also called "direct") or closed loop (also called "indirect"). An open-loop system circulates household (potable) water through the collector. A closed-loop system uses a heat-transfer fluid (water or diluted antifreeze) to collect heat and a heat exchanger to transfer the heat to the household water. A disadvantage of closed looped system is that efficiency is lost during the heat exchange process.

Active Systems

Active systems use electric pumps, valves, and controllers to circulate water or other heat-transfer fluids through the collectors. They are usually more expensive than passive systems but generally more efficient. Active systems are often easier to retrofit than passive systems because their storage tanks do not need to be installed above or close to the collectors. If installed using a PV panel to operate the pump, an active system can operate even during a power outage.

Open-Loop Active Systems
Open-loop active systems use pumps to circulate household potable water through the collectors. This design is efficient and lowers operating costs but is not appropriate if water is hard or acidic because scale and corrosion will gradually disable the system. Open-loop active systems are popular in regions that do not experience subzero temperatures. Flat plate open-loop systems should never be installed in climates that experience sustained periods of subzero temperatures. Solar water heater can be installed in an open loop in areas that experience sub-zero temperatures as long as the solar controller has a low temperature fuction.

Closed-Loop Active Systems
These systems pump heat-transfer fluids (usually a glycol-water antifreeze mixture) through the solar water heater. Heat exchangers transfer the heat from the fluid to the water that is stored in tanks. Double-walled heat exchangers or twin coil solar tanks prevent contamination of household water. Some standards require double walls when the heat-transfer fluid is anything other than household water. Closed-loop glycol systems are popular in areas subject to extended subzero temperatures because they offer good freeze protection. However, glycol antifreeze systems are more expensive to purchase and install and the glycol must be checked each year and changed every few years, depending on glycol quality and system temperatures.

Drainback systems use water as the heat-transfer fluid in the collector loop. A pump circulates the water through the solar water heater. When the pump is turned off, the solar water heater drains of water, which ensures freeze protection and also allows the system to turn off if the water in the storage tank becomes too hot. A problem with drainback systems is that the solar water heater installation and plumbing must be carefully positioned to allow complete drainage. The pump must also have sufficient head pressure to pump the water up to the collector each time the pump starts. Electricity usage is therefore slightly higher than a sealed closed or open loop.

Passive Systems

Passive systems move household water or a heat-transfer fluid through the system without pumps. Passive systems have the advantage that electricity outage and electric pump breakdown are not issues. This makes passive systems generally more reliable, easier to maintain, and possibly longer lasting than active systems. Passive systems are often less expensive than active systems, but are also generally less efficient due to slower water flow rates through the system.

Thermosiphon Systems
A thermosiphon system relies on warm water rising, a phenomenon known as natural convection, to circulate water through the solar absorber and to the tank. In this type of installation, the tank must be located above the absorber tubes/panel. As water in the absorber heats, it becomes lighter and naturally rises into the tank above. Meanwhile, cooler water in the tank flows downwards into the absorber, thus causing circulation throughout the system. This system is widely used with both flat plate and evacuated tube absorbers. The disadvantages of this design are the poor aesthetics of having a large tank on the roof and the isses with structural integrity of the roof. Often the roof must be reinforced to cope with the weight of the tank.

Batch Heaters
Batch heaters are simple passive system consisting of one or more storage tanks placed in an insulated box that has a glazed side facing the sun. Batch heaters are inexpensive and have few components, but only perform well in summer when the weather is warm. Evacuated tube solar collectors are now an affordable and much more efficient alternative to either batch or flat plate collectors.

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See Throught Window Insulators - Save 40% on Energy Costs


Solar Water Heating

Solar Pool Heating

Solar Domestic Water Heat

Your Environmentally Friendly Hard Water Solution


Solar Air Conditioning

Green air conditioning ( 90 % energy use reduction)

Off Grid Homes, Off Grid Cabins and Cottages

Solar Commercial Water Heating

Off Grid Solar Water Heating and Electrical Systems


CSA Approved PV Panels Grid Tied


PV Panels Off Grid


LED Lighting


Solar Water Heating

Controllers and BTU Meters

Solar Dissipators Valves and Heaters

Solar Water Domestic Heating Systems 

Solar Water Heater

Solar Commercial Heating

Heat Exchangers

Off Grid Living Overview

Off Grid Living with all the Toys


Power Inverters for Off Grid


Stand Alone Water Heating

Solar PV Systems Overview

New Saskatchewan Net Metering Program

CSA Approved Solar Panels

Grid Tie Inverters

Solar Panels Not CSA Approved

Solar Controller

Solar Streetlight

Solar Heating Applications

Canadian Solar Rebates and Incentives

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