{"product_id":"ext1339488-qmark-500w-hydronic-baseboard-heater","title":"Open-Box: Qmark 500W Hydronic Baseboard Heater","description":"\u003cp dir=\"ltr\" style=\"line-height:1.38;margin-bottom:12pt;margin-top:12pt;\"\u003eThe Qmark HBB Series Electric Hydronic Baseboard Heater is designed for comfort and efficiency in residential and light commercial settings up to 155 square feet.\u003c\/p\u003e\n\n\u003cp dir=\"ltr\" style=\"line-height:1.38;margin-bottom:12pt;margin-top:12pt;\"\u003eThis heater stores heat within a fluid reservoir using a hydronic heating element, which provides consistent warmth even after the thermostat has been turned off. Its quiet operation and low surface temperatures make it ideal for spaces where safety and comfort are essential.\u003c\/p\u003e\n\n\u003cp dir=\"ltr\" style=\"line-height:1.38;margin-bottom:12pt;margin-top:12pt;\"\u003eBuilt with durable steel construction, this model is engineered for longevity and is safe for use in homes with pets and children.\u003c\/p\u003e\n\n\u003ch2 dir=\"ltr\" style=\"line-height:1.38;margin-bottom:6pt;margin-top:14pt;\"\u003e\n\u003cstrong\u003eTop Features\u003c\/strong\u003e\n\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydronic Heating Element\u003c\/strong\u003e: This element reduces frequent on\/off cycling, offering consistent, energy-efficient heat with gentle temperature retention even after the unit turns off.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMultiple Wattage Options\u003c\/strong\u003e: Models range from 500 to 1,250 watts, allowing you to select the ideal unit for your space.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eQuiet Operation\u003c\/strong\u003e: Delivers heat without fan noise, making it suitable for bedrooms, offices, and other quiet environments.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e: Heavy-duty steel grilles and a powder-coated finish ensure durability and prevent damage.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eLow Surface Temperature\u003c\/strong\u003e: Safe for installations in homes with children or pets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 dir=\"ltr\" style=\"line-height:1.38;margin-bottom:6pt;margin-top:14pt;\"\u003e\n\u003cstrong\u003eHeating Capacity by Model\u003c\/strong\u003e\n\u003c\/h2\u003e\n\n\u003cp dir=\"ltr\" style=\"line-height:1.38;margin-bottom:0pt;margin-top:0pt;\"\u003eThis model comes in four different sizes, ranging from 500 to 1,250 watts, and can heat spaces up to 155 square feet.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHBB504\u003c\/strong\u003e: 500 watts (240\/208 volts) for spaces up to 60 square feet.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eHBB754\u003c\/strong\u003e: 750 watts (240\/208 volts) for spaces up to 95 square feet.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eHBB1004\u003c\/strong\u003e: 1,000 watts (240\/208 volts) for spaces up to 125 square feet.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eHBB1254\u003c\/strong\u003e: 1,250 watts (240\/208 volts) for spaces up to 155 square feet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 dir=\"ltr\" style=\"line-height:1.38;margin-bottom:6pt;margin-top:14pt;\"\u003e\n\u003cstrong\u003eAdditional Features\u003c\/strong\u003e\n\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-Specific Heating\u003c\/strong\u003e: Designed for zone heating, these heaters efficiently warm up spaces like bedrooms, kitchens, hallways, and offices without wasting energy on unoccupied areas.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eUL Listed\u003c\/strong\u003e: Safe for installation flush to any wall or flat on any floor type, including carpet.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QMark","offers":[{"title":"Like New","offer_id":42359342956630,"sku":"bstock-qm15930N","price":329.0,"currency_code":"USD","in_stock":false},{"title":"Very Good","offer_id":42359342923862,"sku":"bstock-qm15930V","price":37.56,"currency_code":"USD","in_stock":false},{"title":"Good","offer_id":42359150018646,"sku":"bstock-qm15930G","price":329.0,"currency_code":"USD","in_stock":false},{"title":"Acceptable","offer_id":42359342891094,"sku":"bstock-qm15930A","price":329.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/7135\/4966\/files\/qmark-hbb-electric-hydronic-baseboard-heater-front_f370e363-668e-4f85-a316-02cf6fb82484.png?v=1755799453","url":"https:\/\/www.sylvane.com\/products\/ext1339488-qmark-500w-hydronic-baseboard-heater","provider":"Sylvane","version":"1.0","type":"link"}