Heating solutions & energy
Everything about mobile heaters, energy-efficient solutions and self-sufficient systems.
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Hcalory TB MAX 8 kW diesel heater in a practical test – compact all-in-one heater for camping, workshops and motorhomes
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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Diesel heating for motorhomes & campers: optimal heating of the conservatory with diesel
A diesel heating system can be a surprisingly efficient solution for heating rooms independently of the power grid – whether in a conservatory, motorhome or camper. In this article, I will show you why I decided to install an Hcalory HBH2 diesel heater, how it is installed and what advantages it offers over a classic electric heater. The article combines technical background, practical experience and concrete consumption data – from the first test run to app control. If you want to know how a modern diesel heating system can be installed and used efficiently, you will find all the important information in detail here.
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Build your own smoke-free fire barrel: DIY instructions from a 200 L oil drum with secondary ventilation
Building your own fire barrel is an exciting DIY project for the garden that not only provides warmth, but is also sustainable. An old 200-liter barrel or oil drum can be turned into an efficient and virtually smoke-free heat source with a little manual skill. I built my own fire barrel and tested different variants – from simple burnout to optimized secondary ventilation. In this article, I’ll show you step by step how I went about it and what to look out for when baking, drilling and choosing materials.
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Install 8kW diesel parking heater safely in the workshop & garage
In this article, I show you how I heat my workshop efficiently, permanently and reliably with an 8 kW diesel parking heater from KROAK. I planned and implemented the complete installation of the diesel parking heater step by step – from safe exhaust gas routing to fuel supply and hot air distribution. It’s not just about technology, but also about safety, consumption, control via app and the question of whether heating oil can be an alternative to diesel. If you are looking for a workshop heater that also works at low temperatures, you will find all the details here.
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Pool heating with ribbed pipe systems – Build your own solar heating for the pool
Pool heating, solar absorber, Ripp pipe system and the efficient use of solar energy – in this article I document the complete conversion of my old EPDM pool heating system into a modern Dolphi-Ripp solar heating system. After more than ten years of practical experience with EPDM mats, I will show you why the change was necessary, which system is convincing today and how the new solar-based pool heating is proving itself in everyday life. Step by step, I describe the planning, installation and initial results – including technical details, comparisons and practical tips for installing a solar absorber on the roof.
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5 diesel parking heaters compared: which one is right for you?
A mobile diesel-based parking heater is an efficient way to reliably heat motorhomes, workshops or garden sheds. As a mobile heater, it offers independence from power sources and provides pleasant warmth even in icy temperatures. This article provides a comparison of the best diesel heaters, an overview of their advantages and disadvantages and important tips on safe use.













