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  • COMMAIK
    • Contact Form
    • Imprint
    • Privacy
  • 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
    • Outdoor & Garten
    • Pool & garden kitchen
    • Security & Smart Home
    • Tools & DIY
  • Commaik Music
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  • The best Reolink 4k PTZ surveillance cameras in comparison: 823S2 vs 823S1 vs TrackMix vs TrackFlex in test

    A 4K PTZ Reolink security camera monitors a man walking towards a large house at dusk. A digital overlay highlights the camera's facial recognition and zooms in on the man's face with a blue square frame. www.commaik.de

    For me, Reolink is one of the most exciting manufacturers of modern 4K PTZ surveillance cameras for indoor and outdoor use. In this Reolink surveillance camera comparison, I analyze several high-performance models – from classic PTZ cameras with optical zoom to dual-lens and floodlight variants for outdoor use. The focus is on image quality, motion detection, night vision, PoE vs. WLAN, local storage without a subscription and the question of which camera is really suitable for large properties, driveways or security-relevant areas. I will show you my practical experience with the RLC-823S2, RLC-823S1, TrackMix and TrackFlex and categorize the models technically and strategically. The aim of this article is to…

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    A smart irrigation controller displaying “Hydrawise” is shown with an arrow pointing to a sprinkler watering a lush green lawn in the backyard. www.commaik.de

    Installing and programming the Hunter Hydrawise irrigation computer – step by step

    24. August 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
    A person in dark clothing stands by a white counter, holding a metal tube and a small rectangular device. Behind the counter is a white and black parking heater machine labeled Motour with various attachments and a red button. www.commaik.de

    Heating optimization: How to make your diesel parking heater quieter – pump and silencer in the test

    20. December 2025
  • Expand Reolink NVR storage space – Installing and configuring hard disks correctly

    A black Reolink NVR device is shown against a gray background. A large text in German reads "Hard disk retrofitting". The Reolink logo appears in the bottom left corner. www.commaik.de

    In this article, I will give a structured overview of the Reolink NVR models – maximum hard disk size and storage capacity and show what really matters when choosing the right HDD. A Reolink NVR is the central element of a camera surveillance system – and the storage strategy determines how long recordings remain available and how stable the system runs. I go into detail about the differences between RLN36, RLN16-410, RLN8-410 and RLN12W, explain the maximum hard disk size per model, show the correct choice of surveillance HDD and document the complete installation including formatting and storage management. I also explain how an NVR works with multiple HDDs and…

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    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

    Kroak TB2 diesel parking heater 8kW: Unboxing, test & possible applications

    22. January 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
    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
  • Install surveillance cameras yourself – IP camera network explained simply

    Two surveillance cameras are shown on the left and a network diagram for installing an IP camera is shown on the right. Below is written: Install Reolink surveillance cameras yourself. www.commaik.de

    IP cameras are now an integral part of modern video surveillance in the home network. In this article, I will show you how to set up an IP camera system yourself, what role the router, switch, PoE, WLAN and NVR play and how different camera types can be combined in a shared network. I explain the technical basics, address typical practical questions and use real examples to show how a stable, secure and scalable IP surveillance solution can be implemented step by step – from planning and installation to storing the video recordings.   At a glance – what you can expect in this blog post The basics of IP…

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    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 small backyard swimming pool with clear blue water is surrounded by patio stones. The covered outdoor seating area, topped with solar panels, offers a perfect spot for winterizing the pool. A palm plant sits in the foreground. www.commaik.de

    Winterizing the pool – putting pool technology into operation and adjusting water values

    29. January 2024
    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

    Upgrading the diesel parking heater: Installing a tank extension for the mobile heating box

    19. January 2025
  • Automatic litter box test: Self-cleaning litter box without odor – Mova LR10

    A modern, automated litter box with a circular opening sits on a wooden floor next to a wooden pillar and light gray wall. The litter box is empty and clean. www.commaik.de

    Self-cleaning litter boxes promise less effort, better hygiene and much more pleasant use in everyday life. Many cat owners are increasingly focusing on automatic solutions, especially if they have several cats or little time. With the MOVA MeowgicPod LR10 Prime, I tested a new litter tray in everyday use for several weeks – including set-up, app setup, cleaning cycles and use by two cats. This article is about my experience with a self-cleaning litter box that does many things differently to conventional litter boxes.

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    Lawn irrigation system components, including pipes, valves, and wiring, are laid out on the ground next to an open valve box in a grassy area. A green garden hose and plastic cover are also visible. www.commaik.de

    Installing lawn irrigation: Valve box, Hunter solenoid valves and Rain Bird water distribution in detail

    1. March 2025
    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
    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
  • Lymow One in test: Robot mower without boundary wire with RTK navigation and chain drive

    A Lymow One robotic lawnmower with tank-like tracks sits on a well-manicured lawn, surrounded by green grass and some fuzzy bushes in the background. www.commaik.de

    The Lymow One robotic lawnmower is one of the most exciting developments in the field of robotic lawnmowers without a boundary wire. My test shows how far modern RTK navigation, VSLAM, a robust chain drive and a wide mowing deck can simplify work on large lawns. The focus is on performance, precision and off-road capability – characteristics that I was able to test extensively on my own property and another larger test area. The report summarizes all the important aspects: from design and scope of delivery, set-up, mapping and app control to mowing performance, cutting pattern, obstacle detection and practice on uneven terrain. In addition to the test, I provide…

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    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
    Close-up of an ALLPOWERS powerstation with a digital display showing 74% battery, 499W output, and several connected cables and outlets on the front panel. www.commaik.de

    LiFePo4 Powerstation – mobile storage for stand-alone PV systems

    5. January 2024
    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
  • Hcalory TB MAX 8 kW diesel heater in a practical test – compact all-in-one heater for camping, workshops and motorhomes

    A portable hcalory diesel heating unit sits inside a metal box with an open lid, next to a light gray wooden wall. Various hoses and a fuel tank are visible, along with ventilation pipes extending from the box. www.commaik.de

    The Hcalory TB MAX 8 kW diesel heater is one of the most modern diesel parking heaters and combines a compact design, smart app control and high heat output with low consumption. In my detailed test, I show how the diesel parking heater performs in the motorhome, when camping or in the workshop, which technical innovations distinguish it from older Vevor models and which safety functions make the heater special. In addition to the manufacturer’s portrait of Hcalory, it covers design, technology, installation, CO monitoring and automatic start-stop – right through to a comparison with other diesel parking heaters and my practical test in the animal house and garden shed.

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    Lawn care equipment, including a lawn mower, fertilizer spreader, and a bag of fertilizer, is arranged on a lush lawn near a palm tree and garden bed with white stones. Stacked firewood sits in the background. www.commaik.de

    The 5 best tips for a healthy lawn – lawn care in spring

    2. 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
    A cozy wooden cabin interior with a red Hageer wood stove burning brightly and a parking heater nearby, next to an indoor fire pit. Snowy trees are visible outside through large windows and a wooden fence. www.commaik.de

    5 diesel parking heaters compared: which one is right for you?

    19. February 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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