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Is it necessary to install an additional pump on the radiator circuit if the wall-mounted boiler already has its own circulation pump. Order a project: tel. +7 917 437-20-96 Marat Ishmuratov Email: [email protected] Website: https://marikoklimat.ru/ Subscribe to Telegram: https://t.me/marikoklimat Subscribe to Vkontakte: https://vk.com/id59297661