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WSD - 40,000 BTU - Hydronic Air Handler - Fan Coil - Rotom Blower - 500 CFM



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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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$112 / Month
Suggested monthly payments with 6 month financing.
WSD  - 40,000 BTU - Hydronic Air Handler - Fan Coil - Rotom Blower - 500 CFM
WSD - 40,000 BTU - Hydronic Air Handler - Fan Coil - Rotom Blower - 500 CFM
Model: WSD-AH12
How-To Articles


    The WSD-AH12 is the perfect solution for a cold garage or work space. It provides you with warm controllable air flow for optimal comfort. It is capable of producing 40,000 BTU of heating and works up to 500 CFM. The WSD-AH12 air handler allows you to create a true hybrid system utilizing a boiler as the central heat source.
  • WSD WSD-AH12 Features
  • Quiet Operation
  • The WSD-AH12 provides warm controllable air with minimal noise.
  • Optional Adjustable Louvers
  • Easily direct the warm air where ever you want it with the adjustable louvers.
  • Filter and Filter Rack Included
  • The filter and filter rack are included with the WSD-AH12 to save you the hassle of trying to purchase the correct filter.
  • Product includes
  • 12 x 12" Hot Water Coil"
  • Filter
  • Filter Rack
  • Rotom Blower
  • Product Note
    This product was formerly called WSD-SMAH


General Information
Product Line
Blower Motor
Single Speed
Coil Type
Configuration Learn More
Orientation describes the direction that air will flow through a piece of equipment. (e.g. air will flow horizontally through a "Horizontal" unit heater.) Most equipment will only function properly if installed in the proper orientation.
Maximum Input Capacity Learn More
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
40000 BTU
Maximum Air Flow
500 CFM
Supply Connection
1 Inch
Return Connection
1 Inch
Product Height
12 1/2 Inches
Product Width
15 3/4 Inches
Product Depth
22 1/4 Inches
Product Weight
33 Pounds
Shipping Weight
38 Pounds
Country of Origin
United States


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WSD - 40,000 BTU - Hydronic Air Handler - Fan Coil - Rotom Blower - 500 CFM
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