The fourth firewood storage rack with solar panels for the pool is built
Table of Content
To store the firewood optimally, I have already built three firewood storage racks in the garden for the residents of our house. The structure is stable and large enough to store a good 8 cubic meters of firewood.
Furthermore, the roofs of the two southern shelves are additionally used as a base for a total of almost 16sqm of solar heating for the pool. In the meantime, however, the time had come to increase both the wood storage capacity and the solar collector area once again. Another firewood storage rack was needed.
Firewood store – the right location
The parking area in the southwest was still fallow when construction began. On one side were the mounds of earth from the pool excavation and on the other still the composter – which I also had to move in the context.
Cut down tree – create space
I then created the current lawns later. However, until 2 years ago on the desired area stood a large linden tree. This rotted from the inside out and was therefore cut down.
The stump, however, which protruded a good 40cm from the ground did not really want to rot during this time. So before starting construction, I first had to remove the old root. This was done with a spade, shovel, axe and chainsaw.
The root, on the one hand so soft that you could get out the inner life with your hand, but overall proved to be extremely unruly.
Finally, I uncovered large parts of the root with a spade and shovel and then slowly sawed off small wooden discs on edge from left to right with the chainsaw. At some point, I had pushed the tree stump to a level that was no longer in the way of my firewood storage rack.
Build point foundation with KG pipe
Since I already had spade and shovel at hand, I could dig the holes for the six point foundations right away. As with the other three firewood storage systems, this structure was to be anchored to the ground using the tried-and-tested KG pipe variant.
So I marked the appropriate places and dug the holes, each 80cm-100cm deep. The KG pipes were then placed in these and fixed in alignment and balance with concrete.
I poured the concrete generously around the outside of the pipes up to the ground surface. Inside, however, only half high. In addition, I inserted iron rods into the inner still-wet concrete for reinforcement. The whole thing now had to dry for a good week.
Place crossbars on the KG tubes with post anchors
After that, I was able to set the load-bearing base beams. For this purpose, I aligned these 400x10x10cm beams over the respective KG pipes at the front and back. Then I attached the three H-post supports to the beam just above the pipe openings pointing upward.
The beam was then rotated 180° and the spurs of the post anchors were inserted centrally into the KG tubes.
- Material: Stahl, feuerverzinkt
- Abmessungen: Tiefe 60 mm - lichte Breite 101 mm - Höhe 100 mm - Materialstärke 4 mm - Länge Betonanker 400 mm - Material Betonanker Ø16 mm - Anzahl Löcher 6 - Loch-Ø 11 mm
- Ausführung: zum Einbetonieren - extra langer Betonanker aus Riffelstahl
- Hochwertiger Pfostenträger in bewährter Qualität von Alberts - Problemlöser in Spitzenqualität, die immer dann helfen, wenn es perfekt werden muss.
- Alberts bietet nicht nur ein umfangreiches Sortiment an hochwertigen Pfostenträgern an. Wir führen auch eine Vielzahl von Profilen - Blechen und Winkeln - attraktive und sichere Fenstergitter sowie praktische und dekorative Zäune.
After I had aligned the two beams in balance and alignment again, I poured the KG pipes fully with concrete. This mixture should now also dry again for a week before I could set the six stand beams.
Firewood storage shelf – size customization
Differing from the other firewood storage, I have slightly changed the dimensions of the structure. The distance between the front and rear support beams had grown from 100cm to 130cm (inside dimension). Consequently, the usable area for firewood was now 150cm in depth.
The roof with its solar panels should be slightly flatter than my first shelf but steeper than that of number two and three. The collectors on the roof must remain even in the wind but dirt and leaves should be washed away by the weather.
Consequently, I set the front uprights with a height of a good 210cm while the rear ones were only 190cm high. The distance from each other of 130cm resulted in an optimal slope of the roof. The six stud beams were stiffened at the bottom with solid iron angles in every possible direction.
Installing the intermediate shelf in the wooden shelf
At a height of 100cm bottom edge I set the beams for the floor of the second floor of the shelf. These were also connected to the stud beams as well as to each other with the iron angles. Finally, the two upper cross beams on which the roof was mounted.
In line with my progress, I was also able to install the floor battens on the two floors. For the roof, I placed 40x60mm roof battens symmetrically on the two crossbeams using rafter grease anchors.
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Firewood storage – build roof on the shelf
Across these roof battens I placed a counter-battening with 30x50mm battens. At the very top followed 22mm OSB boards which were screwed to the counter battens. A final welded sheet (slated) has since ensured watertightness.
By the way, I really managed to burn my shoes off on all three shelves when applying the welding membrane. But anyway, the shelf stood for now.
Firewood storage – separate segments in the wood rack
Next, I had to divide the individual segments among themselves so that the firewood could later be stacked stably and not fall out to the left and right.
For this put 30x50mm laths on edge to the crossbars always between the laths that formed the floor of the floor. With the remaining pieces of OSB boards, the entire structure was still stiffened. These plates were screwed to the two end faces for this purpose. Nothing wobbles anymore!
Firewood store – close the back
I closed the back again with rabbit hutch mesh. Thus I can stack the wood later up to the stop to the back without this falls out again.
The shelf was ready. The only thing missing was the free skate in the form of another solar heater of about 8sqm for the pool. As before, I decided to use six EPDM mats in the size 400x30cm.
- Der Steinbach Solarkollektor Compact sorgt dank der hochwertigen und langlebigen LDPE Kollektoren im Pool für angenehm warmes Wasser in kürzester Zeit - so kann der Sommer kommen
- Der Sonnenkollektor eignet sich für Pools bis zu 12.000 Liter und ist beliebig erweiterbar - je nach Wunschtemperatur können ein oder mehrere Elemente in Serie verbunden werden
- Mehr Heizleistung: Die SUN LDPE Kollektoren können mit nur zwei Handgriffen untereinander verbunden werden - der Anschluss erfolgt zwischen Filterpumpe und Beckeneinlaufdüse
- Die Kollektoren werden bereits montagefertig geliefert - nur die zwei Anschlussadapter für Ø 32 mm oder Ø 38 mm Schwimmbadschläuche müssen montiert werden, ein Werkzeug ist nicht erforderlich
- Lieferumfang: 1 x Steinbach Solarkollektor Compact / Für Pools bis 12.000 l / Maße: 300 x 70 cm / Auch für Salzwasser geeignet / Schlauchanschluss Ø 32/38 mm / Wasserinhalt Kollektor: 4 l
Pool solar heater on the wooden shelf in the garden
To protect the mats from the sharp slate chipping edges on the roof, but also to raise the temperature even more, I laid a black sturdy weed fleece on the roof over a large area. This is held by thousands of staples.
The fleece was then followed by the EPDM mats, which were aligned and connected to each other.
To minimize shifting due to wind and weather, the PVC end pipes were fixed on the left and right with 50 mm pipe clamps and two 200 cm construction rails were also screwed centrally over the entire mats.
The two rails are tight enough to protect the mats from wind&weather and at the same time loose enough that the waterways are not pushed off.
With this solution, I was able to fix the pool hose from the inlet to the rails using hammerhead screws and a 38 hose clamp.
I also completely rebuilt the distributor on the middle firewood storage rack during this action. The 50 flex hose from the ground is now divided into three 50 PVC pipes each which then transfer the water to the 38 pool hoses.
Install water manifold for pool heating
A total of 6 shut-off valves give me the possibility to switch individual mats off or on directly. I therefore have no problems with excessive water pressure in the mats. It is rather the case that the water flow velocity has fallen further, which should only be beneficial to the energy absorption in the sun.
As a result, I was able to effectively increase my nearly 30sqm of pool water by 3 to 4°C on really sunny days (>50°C sunshine) and keep the pool at 30°C from June to mid-August despite the lousy summer of 2017.
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