AO Smith 9005908205 Boiler Thermal BalancerThe Boiler Thermal Balancer helps stabilize temperatures and improve efficiency for gas fired hot water boilers. Designed for AO Smith equipment and used on HW 300 399 420 520 670 models, this thermal balancer ensures balanced heat distribution for reliable operation. By maintaining even temperatures, the Boiler Thermal Balancer reduces short cycling, minimizes stress on boiler components, and promotes steadier operation throughout the heating cycle.

It delivers essential corrosion protection by attracting corrosive elements away from the steel tank and can help extend the interval between service calls

1/24 HP for efficient cooling

Key specifications and capabilities include a 125/250/277 VAC contact voltage rating

Easy install for quick maintenance and leak prevention

It serves as the primary flame rod in VB/VW 500/750/1000 boilers

Capacity: 720

is adjustable for low-pressure control with an operating range of 1 to 20 Inch WC

8A at 120V

Direct replacement for 5LAY-59 to minimize downtime

Brass body and lead-free construction

Mechanical: NEMA Frame 48

It’s a ready replacement that aligns with the electrical specs of original Nordyne installations