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Side Arm Heat Exchanger 38.4" & Mixing Valve

Side Arm Heat Exchanger 38.4" & Mixing Valve

This means we have in stock and can ship the same business day if ordered before 3 pm EST. We use Fedex & UPS
Material: 304 Stainless Steel
Size: 38.5"
Sku: SA38kit_Bundle
  • Kit includes mixing valve (MV34S), sidearm and with diagrams for easy installation
  • The valve delivers water at a maximum of 120 F (49C), allowing the heater to be set at 140 F (60C) or higher

In stock

Sale Price $235.98 List Price $324.00 (You save: $88.02)
Customize Side Arm Heat Exchanger 38.4" & Mixing Valve
1 x Side Arm Heat Exchanger 38.4"   + $152.25
1 x Cash Acme Heat Guard Tempering Valve, 3/4" Sweat 110-D 24131-0000   + $83.73

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Stainless Steel Side Arm Heat Exchanger 38.4" & Mixing Valve, Fittings
Side Arm Heat Exchanger 38.4" & Mixing Valve

In stock



    Product Description

    The Kit includes a mixing valve (MV34S or MV34SB), sidearm and diagrams for easy installation

    Typical Applications

    Ideal for residential heating and plumbing applications

    MV34S Cash Acme HeatGuard® 110-D Tempering Valve

    Sweat intended for installation at the water heater to distribute controlled temperature water through a domestic hot water system. The valve delivers water at a maximum of 120° F (49°C), allowing the heater to be set at 140° F (60°C) or higher, thus providing a greater effective volume of hot water and reducing the chances of Legionellae bacteria growth in the water.

    SideArm Heat Exchanger 38.4"

    Made of 304 stainless steel, fin-enhanced sidearm increases heat transfer efficiency significantly by using a finned tube internally, which has surface area five to eight times bigger than bare tube and produces great turbulence on system side. 

    With fin-enhanced sidearm you not only need a shorter unit, but get bigger capacity and faster heating.

    Double walled fin-enhanced sidearms are available upon request. Due to concerns about cross contamination of potable water several US States enacted regulations to prevent this possibility from occurring. Double wall heat exchangers presented the most effective means of protection from cross contamination. We now provide a vented double walled sidearm which meets the criteria of these regulations. 

    Due to the compact size and lightweight of the sidearm heat exchanger these units are ideal for residential heating and plumbing applications. Also called domestic water heat exchangers, they are typically used to heat domestic water using either a conventional boiler, outdoor wood furnace or a solar hot water system. Typically the domestic water is circulated by means of the thermosiphon principle which saves on the cost of a pump and the associated electrical costs. In cases where faster heat recovery is required the domestic hot water should be circulated by means of a pump. Pump circulation will typically provide a heat recovery 3 to 4 times greater than thermosiphoning domestic water coils.

    More Information

    Heatguard® 110-D Thermostatic Mixing Valve

    Delivers water at a safe 120°F (49°C) or lower from all outlets, while allowing the heater to be set at a germ-killing 140°F (60°C) or higher which aids in preventing the growth of legionella bacteria in the water heater. The higher tank temperature means that hot water demands can be satisfied longer. Robust, low complexity construction. Every valve is tested for performance prior to shipping. Unique purpose designed adjuster tool minimizes unauthorized tampering with valve setting.


    Domestic hot water distribution.







    (3/4" w/checks)

    SharkBite® Sizes:

    Direct Connector Sizes:

    • and 3/4" Heatguard 110-DSB (24105-0000)


    The Heatguard® 110-D is certified to ASSE 1017 and CSA B125.3 and is listed by ASSE and IAPMO.

    SideArm Heat Exchanger:

    SideArm Specs

    SideArm Chart

    Featured No
    New Arrivals No
    Shipping Label Quick Shipment, Next Day
    Made In USA No
    Material 304 Stainless Steel
    Size 38.5"
    Freight (not shippable) No
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