{"product_id":"aprilaire-700-fan-powered-evaporative-humidifier","title":"AprilAire 700 Fan-Powered Evaporative Humidifier","description":"\u003cp\u003e\u003cstrong\u003eA high-capacity whole-house fan-powered evaporative humidifier engineered for direct supply plenum mounting without bypass ductwork.\u003c\/strong\u003e The AprilAire Model 700 delivers up to 18 gallons per day (GPD) of moisture distribution for homes up to 5,300 sq. ft. Built with an integrated quiet-operating circulating fan, the Model 700 draws heated air directly from the furnace or heat pump supply plenum through the internal water panel and injects humidified air directly into the home duct system. This self-powered airflow design eliminates the requirement for a separate 6-inch bypass duct, making it ideal for compact mechanical rooms, heat pump systems operating at lower plenum temperatures, and large residential floorplans. Equipped with the Model 60 Automatic Digital Humidifier Control and outdoor temperature sensor, the unit continuously modulates humidity to prevent window condensation while safeguarding architectural wood flooring and millwork during Canadian winter heating.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated internal circulating fan\u003c\/strong\u003e — built-in fan drives airflow through the water panel directly into supply ductwork without requiring bypass duct piping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect supply plenum installation\u003c\/strong\u003e — mounts directly to the warm air supply plenum, reducing installation space requirements in compact furnace mechanical rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh evaporative capacity\u003c\/strong\u003e — delivers 18 gallons per day, providing whole-home moisture coverage for expansive residential spaces up to 5,300 sq. ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic digital humidity control\u003c\/strong\u003e — includes Model 60 digital controller and outdoor temperature sensor to dynamically balance indoor moisture and avoid window condensation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimized performance\u003c\/strong\u003e — internal motorized fan delivers rated moisture output even on heat pump systems with lower plenum discharge air temperatures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSizing guide\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTight construction (modern building code, 0.5 ACH)\u003c\/th\u003e\n\u003ctd\u003eUp to 5,300 sq. ft. (492 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAverage construction (typical residential, 1.0 ACH)\u003c\/th\u003e\n\u003ctd\u003eUp to 2,600 sq. ft. (242 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLoose construction (older heritage structure, 1.5 ACH)\u003c\/th\u003e\n\u003ctd\u003eUp to 1,800 sq. ft. (167 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAprilAire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e700 Series Fan-Powered Evaporative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel \/ SKU\u003c\/th\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEquipment type\u003c\/th\u003e\n\u003ctd\u003eWhole-house fan-powered evaporative humidifier (no bypass duct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEvaporative capacity\u003c\/th\u003e\n\u003ctd\u003e18 Gallons Per Day (GPD) @ 120°F plenum temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (tight construction)\u003c\/th\u003e\n\u003ctd\u003eUp to 5,300 sq. ft. (492 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (average construction)\u003c\/th\u003e\n\u003ctd\u003eUp to 2,600 sq. ft. (242 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (loose construction)\u003c\/th\u003e\n\u003ctd\u003eUp to 1,800 sq. ft. (167 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFan drive mechanism\u003c\/th\u003e\n\u003ctd\u003eIntegrated internal circulating fan motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBypass duct requirement\u003c\/th\u003e\n\u003ctd\u003eNone (self-powered airflow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHumidifier control included\u003c\/th\u003e\n\u003ctd\u003eModel 60 Automatic Digital Humidifier Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutdoor temperature sensor\u003c\/th\u003e\n\u003ctd\u003eIncluded (digital proportional reset)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReplacement water panel\u003c\/th\u003e\n\u003ctd\u003eModel 35 Water Panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePlenum opening dimensions\u003c\/th\u003e\n\u003ctd\u003e14-7\/8 in. W × 14-3\/16 in. H (378 × 360 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUnit dimensions\u003c\/th\u003e\n\u003ctd\u003e15-29\/32 in. W × 18 in. H × 10-11\/32 in. D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eElectrical rating (fan motor)\u003c\/th\u003e\n\u003ctd\u003e120 VAC, 60 Hz, 0.8 A (plugs into standard 120V outlet or hardwires)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eElectrical rating (control circuit)\u003c\/th\u003e\n\u003ctd\u003e24 VAC, 60 Hz, 0.5 A (transformer included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTransformer included\u003c\/th\u003e\n\u003ctd\u003e120 VAC to 24 VAC, 10 VA Class 2 Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater feed rate\u003c\/th\u003e\n\u003ctd\u003e3 Gallons Per Hour (GPH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater supply connection\u003c\/th\u003e\n\u003ctd\u003e1\/4 in. O.D. copper tubing with compression fitting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDrain hose connection\u003c\/th\u003e\n\u003ctd\u003e1\/2 in. I.D. flexible tubing to floor drain or pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater supply temperature\u003c\/th\u003e\n\u003ctd\u003eCold or service hot water (hot water recommended for heat pump applications)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eUL rated, AHRI Guideline F compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRequires an existing or field-cut 14-7\/8 in. by 14-3\/16 in. opening on the warm air supply plenum where the internal circulating fan can discharge directly into circulating airflow.\u003c\/li\u003e\n\u003cli\u003eRequires an accessible 120 VAC grounded electrical outlet within 6 feet for the internal circulating fan motor power cord, or dedicated field wiring by a qualified electrician.\u003c\/li\u003e\n\u003cli\u003eThe Model 60 Automatic Digital Control must be mounted on the cold air return duct to sample representative return air relative humidity.\u003c\/li\u003e\n\u003cli\u003eInstall the outdoor temperature sensor on an exterior wall facing north or east out of direct sunlight using standard 18\/2 low-voltage wire.\u003c\/li\u003e\n\u003cli\u003eAnnual replacement of the Model 35 Water Panel is recommended prior to each heating season to ensure continuous rated 18 GPD output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about supply plenum installation or electrical connections? Contact our technical team for assistance.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhere is the Model 700 mounted on the HVAC system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe unit mounts directly to the warm air supply plenum, requiring only a single rectangular cutout (approx. 14.8 in. wide by 14.3 in. high) with zero bypass ductwork.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhich water panel does the Model 700 use?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe Model 700 uses the genuine AprilAire Model 35 evaporative water panel.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat electrical connection is required for the internal fan?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe internal circulation fan motor operates on 120 V AC single-phase 60 Hz power (0.8 A), plugging directly into a standard 120 V wall outlet, while the water solenoid valve is controlled via 24 V AC.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eDoes the Model 700 include an automatic digital controller?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eYes. The unit includes the Model 60 automatic digital humidistat with an outdoor temperature sensor that automatically adjusts humidity levels to avoid window sweating in winter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat water supply line connects to the unit?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eConnect a 1\/4-inch O.D. copper or flexible line to the domestic hot or cold water pipe. Using domestic hot water provides highest evaporation rates.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat drain line size is required?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eA 1\/2-inch I.D. drain hose routes from the bottom drain spud to an open floor drain, laundry tub, or condensate pump.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eIs there a summer\/winter damper on the Model 700?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eNo. Because the Model 700 mounts directly to the supply duct without a bypass pipe, there is no bypass damper to open or close between seasons.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat is the annual maintenance procedure for the Model 700?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eUnclip the front cover, replace the Model 35 water panel, clean any mineral deposits in the distribution tray and drain nozzle, and inspect the fan blade for dust.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rp.widen.net\/content\/ayro0gkhur\/original\/aprilaire-700-series-humidifier-specification-sheet-383.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eAprilAire 700 Series Whole-House Evaporative Humidifier Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rp.widen.net\/content\/uw7plaiqy8\/original\/aprilaire-canada-all-products-specification-reference-guide-2258.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eAprilAire Canada All Products Specification Reference Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rp.widen.net\/content\/dx5u1sdttk\/original\/aprilaire-300-400-400m-500-500m-600-600m-700-700m-humidifier-owners-manual-B2209190.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eAprilAire Model 700 Humidifier Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\u003eSpecifications compiled from official AprilAire 700 Series Whole-House Evaporative Humidifier Specification Sheet (Lit. No. 383) and 700 Series Owner's Manual (B2209190). All specifications subject to manufacturer verification. \u003ca href=\"https:\/\/rp.widen.net\/content\/ayro0gkhur\/original\/aprilaire-700-series-humidifier-specification-sheet-383.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eView AprilAire 700 specifications (PDF)\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Safety Notice:\u003c\/strong\u003e Fan-powered humidifiers require 120V power or 24V transformer wiring and proper supply-plenum mounting. Installation by a licensed HVAC technician is recommended.\u003c\/p\u003e","brand":"AprilAire","offers":[{"title":"Automatic Digital Control (Model 60)","offer_id":53974510862630,"sku":"700","price":470.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/8521\/7830\/files\/aprilaire_700_1_hero_68d0e7c5-229c-4733-a09c-6f190d94da1d.jpg?v=1792998117","url":"https:\/\/avlshop.ca\/products\/aprilaire-700-fan-powered-evaporative-humidifier","provider":"AVL Shop","version":"1.0","type":"link"}