{"product_id":"ext647640-aprilaire-400-drainless-bypass-humidifier-manual-control","title":"Open-Box: Aprilaire 400 Drainless Bypass Humidifier - Manual Control","description":"\u003cp\u003eDry indoor air during the winter months—and year-round—can wreak havoc on your comfort level and even trigger costly damage to your home’s interior. Take back your comfort and protect the investment you made in your home when you use the Aprilaire Model 400 or Model 400M Whole House Humidifier! This bypass in-duct humidifier works with your existing heating, ventilation, and cooling system (HVAC) and ductwork to deliver comfortably humidified air throughout every room of your home. It uses an efficient evaporative humidifying process to raise your home’s relative humidity, adding 17 gallons of moisture per day. That’s enough to treat tightly sealed homes up to 4,000 square feet, average sealed homes up to 2,000 square feet, and loosely sealed homes around 1,000 square feet.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\n\u003cp\u003eWhen connected to your HVAC system, the Aprilaire Models 400 and 400M Bypass Whole House Humidifiers humidify your home using a natural evaporation process. When the humidifier's controller triggers a need for more humidity, water automatically flows from the connected water line into a distribution tray located at the top of the humidifier. Water is distributed evenly across the width of this tray and directed to flow over Aprilaire’s patented Water Panel evaporator into the heart of the humidifier. Moisture from the distribution tray is then evaporated into the incoming dry air, creating comfortably humidified air. Humidified air is then distributed throughout your home through your HVAC system’s return duct and with the help of the blower.  \u003c\/p\u003e\n\n\u003ch2\u003eRequires No Drain, Minimizes Water Use\u003c\/h2\u003e\n\n\u003cp\u003eThe Aprilaire Model 400 Whole House Humidifier is a drainless whole house humidifier that minimizes water usage and eliminates the problem of standing water. It’s ideal for homes with septic systems, for install locations where a floor drain is not available, and for homeowners interested in conserving water. During operation, the evaporative action of the Water Panel succeeds in using 100% of the water delivered to the system. That’s true efficiency. Plus, no standing backlog of water inside the system eliminates stagnant water and ensures that the humidified air stays fresh and clean.\u003c\/p\u003e\n\n\u003ch2\u003eChoose from Aprilaire 400 (Automatic) and Aprilaire 400M (Manual)\u003c\/h2\u003e\n\n\u003cp\u003eTwo Aprilaire 400 models are available.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel 400:\u003c\/strong\u003e Comes with a digital humidity controller that supports both automatic “set it and forget it” operation and manual humidity control.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eModel 400M:\u003c\/strong\u003e Comes with a manual humidity controller that supports manual humidity control only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThorough instructions and guidance for setting, adjusting, and maintaining an ideal humidity level using the controllers are included with each model.\u003c\/p\u003e\n\n\u003ch2\u003eAdditional Benefits and Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Panel Change Indicator\u003c\/strong\u003e - For proper humidifying throughout the season, you should replace the Water Panel twice per year. Each model includes a helpful indicator that reminds you when it’s time for a replacement.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eProtects Your Interior\u003c\/strong\u003e - Optimally humidified air helps protect your wood floors, furnishings, and your home’s infrastructure from damage due to low humidity.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eRelieves Dry Air Symptoms\u003c\/strong\u003e - Properly humidified air also reduces respiratory irritation triggered by low humidity and helps alleviate itchy dry skin. \u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMay Reduce Energy Costs\u003c\/strong\u003e - Maintaining healthy humidified air during the colder months can actually help you feel warmer, leading to reduced heating costs. \u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eProfessional Installation Recommended\u003c\/strong\u003e - Aprilaire highly recommends having a qualified HVAC professional install these units. \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct Warranty Note\u003c\/strong\u003e: Professional installation is required. The Aprilaire parts warranty will be void if not installed by a licensed contractor. \u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eEliminate dry uncomfortable air throughout your home with a single efficient solution - the Aprilaire Model 400 or 400M Humidifier!\u003c\/p\u003e\n\n\u003ch2\u003eWhat Customers Love\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConserves Water\u003c\/strong\u003e - Models 400 and 400M are designed to minimize water usage and reduce wastefulness by using 100% of the water supplied. \u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eSet It and Forget It\u003c\/strong\u003e - Model 400 allows you to set your desired humidity level on the humidity control. The humidifier automatically maintains that level, no intervention needed.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eReduces Heating Costs\u003c\/strong\u003e - Healthy humidified air can help you feel warmer during the winter months and may help reduce your overall heating costs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eThings To Consider\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal Home Size\u003c\/strong\u003e - These models are designed to humidify tightly sealed homes up to 4,000 square feet, average-sealed homes up to 2,000 square feet, and loosely sealed homes up to 1,000 square feet. \u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eProfessional Installation Needed\u003c\/strong\u003e - Aprilaire whole house humidifiers should be installed by a qualified HVAC technician to ensure proper installation, operation, and regular maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aprilaire","offers":[{"title":"Like New","offer_id":42359073112150,"sku":"bstock-ap4879N","price":280.99,"currency_code":"USD","in_stock":false},{"title":"Very Good","offer_id":42359485399126,"sku":"bstock-ap4879V","price":280.99,"currency_code":"USD","in_stock":false},{"title":"Acceptable","offer_id":42359485431894,"sku":"bstock-ap4879A","price":280.99,"currency_code":"USD","in_stock":false},{"title":"Good","offer_id":42359485464662,"sku":"bstock-ap4879G","price":280.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/7135\/4966\/files\/aprilaire-400-whole-house-humidifier-angle_74b149c1-66f8-4c72-90ed-d6b0042c2a0e.png?v=1755798588","url":"https:\/\/www.sylvane.com\/products\/ext647640-aprilaire-400-drainless-bypass-humidifier-manual-control","provider":"Sylvane","version":"1.0","type":"link"}