Read the latest articles about heat pumps, energy savings and heating. Practical advice and tips from heat pump experts.
Articles
Hybrid systems – the best of both worlds
The Hotjet heat pump as the primary heat source, the boiler as a secondary backup. The controller dynamically switches between sources based on efficiency and energy prices – automatically and without user intervention.
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Open Day – February 20, 2026 from 3 PM
We are celebrating 20 years. Join us for an Open Day – factory tour, expert lecture, and free refreshments. Friday, February 20, 2026 from 3 PM.
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Behind the Scenes: How the Future of Heating Is Made in Czechia with HOTJET ZETXp Heat Pumps
How did the HOTJET R&D team develop the new ZETXp heat pump range with R290 refrigerant? From early prototypes and evaporator tuning to certification.
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Photovoltaics and Heat Pump -- How to Connect Them?
Feed-in rates for PV surplus keep dropping while grid prices climb. Pairing photovoltaics with a Hotjet heat pump turns excess electricity into heat -- smartly and automatically.
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How to Prevent Heat Pump Problems
Up to 90% of reported heat pump problems actually have nothing to do with the unit itself. As a manufacturer with 28,000+ installations, we explain what's behind them and how to avoid them.
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Advantages of the Indoor Hotjet ZETXi Air-to-Water Heat Pump vs. the Outdoor Hotjet ZETXe
The ZETX series heat pumps are a popular choice for heating, cooling and domestic hot water. ZETXe and ZETXi share the same core technology, but fundamental differences in installation, noise, maintenance and weather protection will determine which one is right for your home.
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How to Choose a Heat Pump?
What to focus on when choosing a heat pump? COP, noise, refrigerant, installation, photovoltaics. Practical advice from a manufacturer with 20 years of experience.
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