How do solar collectors work? What is their basic principle of operation? This guide covers the absolute basics for beginners, explained in simple and understandable language. If you're considering using the sun to heat domestic hot water, make sure to read this.

The thread size in the hydraulic product you purchased doesn't match? Check the sizes of the individual threads so you can determine if you received the correct size.

Are the sensational reports about the gas heating ban issued by the EU true at all? From when would the ban on the installation of gas boilers come into effect? Who would be subject to such a ban?

What is cogeneration? How does this process work, where can it be applied, and what are its benefits?

What is a sealed heaing system? What is an open vented system in central heating? What are the differences between them? Everything you need to know, explained simply.

Find out how to choose a gas boiler for a house of approximately 150m² - how many kW should the gas boiler have to be effective? What else should be considered? How to size a condensing boiler for a new house and for an old house?

Check the benefits of regular gas boiler servicing. Is gas boiler servicing necessary at all? What are the risks of not having it done?

Technical analysis of the idea of installing underfloor heating in the bathroom. Is it always a good idea? When might it not work well? Will additional radiators, such as ladder-type radiators, be needed?

Learn more about the issue of E. Coli bacteria in water, whether from a public water supply or a private well. Find out how to eliminate E. Coli bacteria and whether it is safe to use such water.

Air source heat pump for an old house. Analysis of a question: Is It Worth Installing a Heat Pump in an Old House? with an Old Heating System? Will it work properly?

There are various types of heat pumps available on the market. They differ based on the source from which they extract heat, which affects heating efficiency, costs, and overall profitability. Analyzing the basic types of heat pumps will help you understand which one to choose for your building, ensuring you avoid an unprofitable solution pushed by a Salesman.  

Are you renovating your apartment or looking to build your dream home and considering installing underfloor heating? Do you want to know how water underfloor heating works? Let's see why heating in the floor is much better than traditional radiators.

Basic information on soldering / brazing as performed in the refrigeration industry, for devices using freon or refrigerants - such as air conditioners, heat pumps, and heat exchangers for these devices, condensers, etc.

The trend of replacing refrigerants in heat pumps and air conditioners with the new refrigerant - R32. What is it, where does it come from - how does it differ from older refrigerants like R134 or R410A? How to choose a heat exchanger for R32?

The trend of converting air conditioners into heat pumps - is a multifaceted topic. We'll focus on the air-to-water heat pump specifically, which is intended to heat homes with traditional water heating systems. The article will carry elements of a DIY , but it's not necessarily an attempt to discourage "professional" heat pump solutions. Instead, we aim to familiarize the reader with the topic.

In this post, we will address the practical aspect of connecting/installing a UV lamp - water UV filter at home. This will be an extended content instruction compared to the basic instructions included in the product. If you have to connect a Nordic Tec UV lamp - 16W, 25W, 30W, or 55W - with Philips bulbs - and have additional questions - it's very likely that you'll find the answer in the instructions below.

You purchased a plate heat exchanger, received the shipment, and noticed rusty-colored lines or dots. Is it possible for a plate heat exchanger - constructed from stainless steel plates - to rust, even in the box, before coming into contact with water?

Learn how a gas condensing boiler works and how it differs from non-condensing ones. Read on and find out more.