Cash Acme 3/4 in Tank Booster Water Heater with Thermostatic Mixing Valve, Gauge & Braided Hose – PEX/CPVC/Copper (24644)

Maximize hot water efficiency with a tempered delivery

The Cash Acme 3/4 in Tank Booster is designed to extend the practical capacity of your existing water heater by mixing hot water with cold from the main supply. This tempered water is delivered to fixtures at a safe, comfortable temperature, reducing the amount of hot water drawn from the tank and potentially boosting usable hot water across showers, sinks, and appliances.

Key capabilities include a temperature-actuated mixing valve and a gauge that shows the setpoint. You can keep the output at 120 F (49 C) for everyday use and adjust up to 140 F (60 C) if desired for specific needs. This approach can help manage energy use while preserving comfort in households or light commercial settings.

How it works

Warm water from your heater is blended with cold water from the supply to achieve a controlled temperature before it reaches fixtures. The result is a steady, tempered stream rather than a single-hot-outflow that can quickly run out when demand spikes.

What you gain

• Tempered water delivery for safer showers and taps
• Potentially greater usable hot water from your existing tank
• Compatibility with gas, power vent, electric, and tankless heaters
• Lead-free DZR brass construction for durability
• Certified for residential and commercial use (ASSE 1017, ASSE 1070, CSA B125.3, NSF/ANSI 372, NSF/ANSI 61)

Installation is designed to be straightforward. The kit uses push-to-connect connections that work with PEX, PE-RT, CPVC, and copper, eliminating soldering, gluing, or crimping. This can simplify upgrades in kitchens, baths, or multi-unit buildings where quick, clean installs matter.

• No-solder, glue, or crimping connections
• Lead-free brass construction for long-term reliability
• Compact design that fits in tight spaces
• Designed for both domestic and commercial applications
• Includes a temperature gauge to monitor tempering performance

Real-world use cases include upgrading a single-family home’s hot water delivery or equipping a small commercial space where multiple fixtures rely on a steady tempered supply. By moderating temperature at the source, households can enjoy consistent comfort while preserving heater capacity for peak usage times.

What’s in the box

Each kit includes the temperature-controlled mixing valve, a gauge, a braided supply hose, and push-to-connect fittings compatible with common piping systems. The included parts are designed to install with minimal tools and no soldering required.