Hydrolevel 48-3250 Fuel Smart Hydrostat 3250-PlusHydrolevel 48-3250 Fuel Smart Hydrostat 3250-Plus
Hydrolevel 48-3250 Fuel Smart Hydrostat 3250-Plus
HydrolevelSKU: 921039

Hydrolevel 48-3250 Fuel Smart HydroStat 3250-Plus 120V Oil Boiler Control with LWCO & Boiler Reset

$202.61
In stock (314)

The Hydrolevel 48-3250 Fuel Smart HydroStat 3250-Plus combines temperature limit control, boiler reset, and low water cutoff capability for oil-fired hot water boilers. Thermal Targeting adjusts boiler temperature to heating demand to help reduce fuel use. Supports cold-start and warm-start applications and replaces common cold-start and triple-action aquastat controls.

Low water cutoff operation requires a Hydrolevel Electro-Well, sold separately. Add the optional OS-100 Outdoor Sensor Kit for outdoor reset and warm weather shutdown.

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays.

More Details

Product overview
  • 120 VAC operation: Designed for oil-fired hot water boilers.
  • Three-function control: Temperature limit, boiler reset, and low water cutoff capability in one unit.
  • Fuel-saving Thermal Targeting: Adjusts boiler water temperature based on heating demand when enabled.
  • Flexible applications: Supports cold-start and warm-start systems, including tankless coil boilers.
  • Aquastat replacement: Replaces common cold-start and triple-action controls; verify compatibility before ordering.
  • Easy status checks: Digital temperature display, LED indicators, and test/settings button.
  • LWCO ready: Requires a Hydrolevel Electro-Well, sold separately, to activate low water cutoff protection.
  • Outdoor reset ready: Optional OS-100 Outdoor Sensor Kit enables outdoor reset and warm weather shutdown.
Specifications
Manufacturer Part Number 48-3250
UPC 642277482501
Overall Dimensions 6 in W x 6-3/8 in H
Material n/a
Domestic or Import n/a
End Style n/a
Type n/a
ADA Compliance n/a
Warning Professional installation required
Standards and Approvals n/a
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: Monday September 7, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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