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</html><thumbnail_url/><thumbnail_width/><thumbnail_height/><description>Een aantal leveranciers van afgiftesystemen voorspelt dat met hun systemen in bestaande woningen forse energiebesparingen mogelijk zijn door toepassing van LTV. Deze besparingen zijn meestal gebaseerd op het effect van rendementsverhoging van de opwekker (in dit geval een HR107ketel, niet afgebeeld) door een lagere aanvoertemperatuur. Nu is dit in theorie volledig correct, maar wat zou [&hellip;]</description></oembed>
