{"id":1892,"date":"2025-05-19T20:48:13","date_gmt":"2025-05-19T20:48:13","guid":{"rendered":"https:\/\/kretz.cz\/produkt\/krbova-vlozka-b103-v15\/"},"modified":"2026-02-22T19:00:11","modified_gmt":"2026-02-22T19:00:11","slug":"krbova-vlozka-b103-v15","status":"publish","type":"product","link":"https:\/\/kretz.cz\/en\/product\/krbova-vlozka-b103-v15\/","title":{"rendered":"Fireplace insert B103 V15"},"content":{"rendered":"<p>The high-performancce KRETZ B103 V15 water-heating fireplace insert, with a maximum output of 34kW and an 8-liter heat exchanger, is an ideal solution for heating spaces up to 480 m\u00b3. Its modern flat glazing complements the interior, while the refractory concrete firebox ensures long-lasting durability and resilience. With 78% efficiency and a 180mm flue diameter, it provides optimal combustion and smoke extraction. Practical features such as adjustable glass wash and external air supplymake maintenance easier and improve burning quality. The robust construction, weighing 210kg and 720mm wide, allows for easy installation. This insert, without a sliding door mechanism or rear loading, combines high performance, elegant design, and reliability in one package.<\/p>","protected":false},"excerpt":{"rendered":"<p>The KRETZ B103 V15 hot-water fireplace insert with 34 kW output can heat spaces up to 480 m\u00b3. 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