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  • COMMAIK
    • Contact Form
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  • The Villa
    • The top floor
    • The upper floor
    • The first floor
    • The cellar
    • The garden
  • Stories from the construction
    • irrigation
    • Photovoltaics
    • Pool and terrace
    • SmartHome
    • The planning
    • The demolition
    • The installation
    • Machinery
    • Restoration and working techniques
    • This and that
  • Videos
    • Build & Renovate
    • Irrigation
    • Carport
    • Gabions
    • Garden
    • Garden kitchen
    • Pool
    • Smart Home
    • Drying
    • Tutorials
  • TESTED & RATED
    • Heating solutions & energy
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    • Pool & garden kitchen
    • Security & Smart Home
    • Tools & DIY
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  • Reolink Duo 3 WiFi & PoE review: Smart UHD surveillance camera with 180° field of view

    A man stands in front of a backyard with a pool, thinking. Two Reolink Duo 3 security cameras—PoE and WiFi—are displayed, showcasing the latest in Reolink surveillance. The Reolink logo appears at the top right. www.commaik.de

    The Reolink Duo 3 WiFi & PoE offers innovative technology for every surveillance need. With 16MP ultra HD resolution, 180° panoramic view and intelligent motion detection, they provide first-class security day and night. In this article, I compare the two models, discuss their strengths and show which camera is best suited for which application.

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    A robot mower glides across a well-manicured grassy lawn bordered by white gravel, with a patio area and outdoor chairs visible in the background. www.commaik.de

    Robot lawn mower without boundary wire in test: The best models in comparison

    26. February 2025
    Various X-Sense smoke detector products, their packaging, mounting stickers, and a fire extinguisher are arranged on a wooden table with tools hanging on a pegboard in the background. www.commaik.de

    Network wireless smoke detectors across several floors: How X-Sense Link+ protects your whole house!

    21. July 2025
    A sprinkler sprays water over a dry, brown patch of lawn in a sunny backyard, illustrating the importance of garden irrigation. A blue shed and green trees provide a lush backdrop. www.commaik.de

    Planning automatic garden irrigation: step-by-step instructions for efficient lawn irrigation

    21. February 2025
  • Kroak TB2 diesel parking heater 8kW: Unboxing, test & possible applications

    A man in a black jacket points to the inside of a black, box-shaped electronic device with wires, next to a similar device with the inscription "KROAK TB2" on a gray background. www.commaik.de

    The KROAK TB2 diesel parking heater is a versatile and efficient diesel heater that is perfect for use in the workshop, when camping or in the garden shed. In this article, I will show you how this mobile heating box impresses with its compact design and simple installation. I also share my experiences on the performance, consumption and control options of the heating box and why the heating case is an ideal all-in-one solution for cold days.

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    A backyard features a rectangular swimming pool surrounded by a wooden deck, a small covered terrace with a bar, a palm tree, garden beds, a lawn, a greenhouse, and a white house with stone siding. www.commaik.de

    Building a BPC and WPC terrace on a slope – My new pool terrace with recycled boards

    14. May 2025
    A sprinkler sprays water over a dry, brown patch of lawn in a sunny backyard, illustrating the importance of garden irrigation. A blue shed and green trees provide a lush backdrop. www.commaik.de

    Planning automatic garden irrigation: step-by-step instructions for efficient lawn irrigation

    21. February 2025
    Open trench in a paved area with exposed cables, pipes, and a water pipe in the garden, surrounded by loose soil, bricks, and paving stones—signs of ongoing underground utility or lawn irrigation work. www.commaik.de

    Laying the water pipe in the garden: tips for connecting the water supply to the garden irrigation system

    10. March 2025
  • Upgrading the diesel parking heater: Installing a tank extension for the mobile heating box

    A man points at a metal heating box containing machinery and a yellow fluid tank; a large white arrow indicates transferring liquid from a red fuel container into the parking heater. www.commaik.de

    The original parking heater in my mobile heater box was equipped with a small tank, which severely limited the heating time. To solve the problem, I fitted the diesel heater in my aluminum box with a larger fuel tank. In this article, I describe step by step how I installed the new 10-litre tank, optimized the heating box and achieved a constant heat supply for my animal house. I share my experiences, tips and challenges, from planning and installing the tank extractor set to the first successful test

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    A heating box containing technical equipment, including a white plastic tank with a blue cap, wiring, and black components, is open on a stand in a workshop with wooden walls. www.commaik.de

    Build your own mobile heating box: The best DIY solution with an 8kW diesel parking heater

    6. January 2025
    A red and black portable parking heater is displayed on a table with its components, including hoses, wires, a remote, clamps, a silver exhaust pipe, a vent, and a small black bottle in a wooden workshop setting. www.commaik.de

    Diesel parking heater for animal house, workshop and camper: My test of the Vevor 8kW heater

    3. January 2025
    A patch of grass with a hole dug in the soil, exposing underground cables for a robot lawn mower. Nearby are an orange cable locator tool, wires, a white hose, and two blue wire connectors. www.commaik.de

    Robot lawn mower – Find and repair a broken control cable easily

    19. January 2024
  • Installing a mobile diesel parking heater in the garden shed

    A metal heating box with hoses attached sits open next to a building, revealing machinery and a plastic container inside; the box appears to be an outdoor equipment unit or possibly a parking heater. www.commaik.de

    In my search for an efficient and self-sufficient heating solution for my garden shed, I decided to build a mobile heating box with a diesel parking heater. My aim was to create a compact, weatherproof and flexible heating box that not only reliably heats my animal house, but can also be used in the camper, motorhome or for other projects. With the 8kW diesel parking heater, I was able to implement a powerful yet economical solution that provides constant heat even at temperatures of -10°C. In this article, I describe how I planned, built and installed the heating box and share my practical experience from the first tests

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    Modern garden kitchen with a built-in grill, stovetop, drawers, and cabinets against a textured gray concrete look wall. Dark countertops and light concrete floors complete the style. A lantern and small appliances sit on the counter. www.commaik.de

    Designing a garden kitchen with a concrete look: Instructions for robust walls in the outdoor kitchen

    25. October 2024
    A fire barrel with flames rising from the top stands outdoors on dirt, with stacked firewood neatly arranged in the background. www.commaik.de

    Build your own smoke-free fire barrel: DIY instructions from a 200 L oil drum with secondary ventilation

    17. October 2025
    A heating box containing technical equipment, including a white plastic tank with a blue cap, wiring, and black components, is open on a stand in a workshop with wooden walls. www.commaik.de

    Build your own mobile heating box: The best DIY solution with an 8kW diesel parking heater

    6. January 2025
  • Build your own mobile heating box: The best DIY solution with an 8kW diesel parking heater

    A heating box containing technical equipment, including a white plastic tank with a blue cap, wiring, and black components, is open on a stand in a workshop with wooden walls. www.commaik.de

    I have built a mobile heating box with an 8kW China Diesel parking heater that can reliably heat animal houses, garden sheds, campers and tents. The heater box had to be compact, weatherproof and mobile, but at the same time offer enough space for the diesel heater, fuel tank and accessories. In this article, I describe how I planned the heating box, installed the diesel heater and finally put the box into operation, and share my building instructions and my experiences as well as practical solutions.

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    A gloved hand holds a white stick near a moldy wall. On the wooden floor, a silver packet labeled NOVUstick für nachträgliche Horizontalsperren contains 10 sticks for creating an effective horizontal barrier and improving drainage. www.commaik.de

    Drainage – retrofitting a horizontal barrier yourself

    24. January 2024
    A rectangular outdoor swimming pool with clear blue water is surrounded by gray tiled paving and pool edge stones. There is a small palm tree, green grass, and hedges in the background. Some tiling work appears unfinished on one side. www.commaik.de

    Laying pool edging stones and building your own pool terrace for the perfect pool surround

    8. December 2024
    A surveillance control room with six security cameras surrounding a Reolink recording device on a desk, monitors displaying blurred Reolink footage in the background. www.commaik.de

    The best storage solutions for Reolink surveillance cameras: recommendations & experiences

    31. January 2025
  • Diesel parking heater for animal house, workshop and camper: My test of the Vevor 8kW heater

    A red and black portable parking heater is displayed on a table with its components, including hoses, wires, a remote, clamps, a silver exhaust pipe, a vent, and a small black bottle in a wooden workshop setting. www.commaik.de

    A diesel parking heater provides efficient warmth for the animal house, workshop and camper – especially on icy winter days. My previous electric heating solution quickly reached its limits at temperatures below -15°C, as the photovoltaic island system could not supply enough energy for the fan heater when there was little sunshine. To reduce the high electricity costs and find a reliable solution for heating the animal house, I opted for the mobile Vevor 8kW diesel parking heater. In my test, I show you how this heater works and why it is ideal for keeping your garden shed, car or roof tent warm in winter. Before I integrated the Chinese…

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    A person holds a trencher, creating trenches in a grassy yard for irrigation. Several orange buckets filled with soil are placed around the dug areas, with a brick path on the right and a stone building in the background. www.commaik.de

    Installing a lawn sprinkler: Step-by-step instructions for watering your garden

    21. March 2025
    A sprinkler sprays water over a dry, brown patch of lawn in a sunny backyard, illustrating the importance of garden irrigation. A blue shed and green trees provide a lush backdrop. www.commaik.de

    Planning automatic garden irrigation: step-by-step instructions for efficient lawn irrigation

    21. February 2025
    A modern backyard with a rectangular pool, surrounded by gray tiles. There’s a covered terrace with bar stools, a small palm tree, and a blue shed in the background. www.commaik.de

    Build your own pool terrace with stone slabs on a slope

    8. June 2025
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Autor & Blogger

In this construction diary, we share our experience in the renovation and modernization of our Art Nouveau villa and hope to give a few suggestions and tips to some of you.

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