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DIY evacuated solar tubes kits

Evacuated solar tubes are second-generation technologies manufactured to modern and MCS-accredited standards. A-frames are available for a ground-mounted installation.

Evacuated solar kits.

MCS-approved components.

Find local MCS installers. Schematic

Heat-pipes tube kits
DIY & trade.

Tank size: 200-350 Litres
1 x Evacuated tubes collector.
1 x Roof fitting kit.*
1 x 25 Litre expansion vessel.
1 x Expansion installation kit.
1 x Controller & pump station.
1 x 20 Litres Glycol fluid.
Solar-ready tanks (optional).

Evacuated solar tubes installation in the UK.

"When working with heights, electrics and plumbing, always use the correct safety equipment. Use an accredited MCS-installer for a professional install.

The basics

This solar tube technology includes a patented Low E glass. These use a unique 'low-iron' glass formula that has reduced reflective properties and increased absorption.

The glass surface has 360 degrees absorption ability to give better performance than flat-plate technologies. The reason is heat retention and production at lower outdoor temperatures.

Each tube has twin-skin just like a thermos flask. Once the heat is in, it becomes trapped.

Installation guide

For every 100-180 Litre tank size, you will need two m2 arrays or three m2 for 180-300 Litre.

Self-installing evacuated solar tubes

Health and safety should always be your main priority when self-installing evacuated solar tubes. Work alongside a roofer and MCS-accredited installer to commission the completed installation.

1. Scaffolding will be necessary up to the level of the guttering. This equipment will give you a safe working platform. Use additional roof ladders to prevent damage to the roof covering. Making measurements from the inside of the roof space/loft may be helpful.

Deciding where to locate the' pump station' and the shortest route for your pipework.

2. The roof anchors get fixed into the underneath roof batons. You can remove a tile or slate to gain access. Measuring diagonally from corner to corner will help square up the anchors, ready for the aluminium mainframe to be fixed.

The best part of this installation is attaching the header and tubes to the mainframe.

Please note - Ready-assembled collectors will need to be hoisted up to the scaffolding using a roofers pulley system. Some self-installers works alongside a roofing company for this stage of the installation.

An inlet and outlet hole for the pipes can be drilled through the tile/slate and resealed using roof-grade silicone. Make sure any exposed pipework is insulated by an 'Armoflex sheaf' up to the headers inlet and outlet ports.

3. Routing your pipework down towards the pump station can be done with professional 'ready insulated' pipe lengths containing the temperature sensor wire or traditional copper pipe. If the latter, then we recommend connecting with 'compression' joints. Connect the pump station to the correct hot and cold feed connections.

The Expansion Vessel gets installed next to the pump station so, allow for this area. Typical locations for these components are in the loft space, basement or within the airing cupboard.

4. Some solar tubes installations may require an upgraded hot water tank. Unvented or pressurised cylinders are typical, but a 'G3' plumbers accreditation is necessary - however, a traditional vented-tank installed with a secondary solar coil is fine.

5. Now decide where to locate The Controller. If you're installing it in the bathroom, then a Part P qualification is required. Situated outside the bathroom area is more common.

Routing the Temperature Sensors from the controller to the tank and header can follow the route of the pipework in most cases.

6. Pressurising the system with the Glycol fluid can be done with a plumber's pump unit. Flushing the system out of all air bubbles is essential, and pressure of three bar is standard. The final operation is to set-up the Management Controller and testing the temperature sensors are reporting accurate readings.

Check pipework and connections.

7. Enjoy a cup of tea. You've joined a growing army of people taking advantage of solar technology today.

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